Merge branch 'master' into core-updates

207 files changed, 7419 insertions, 2785 deletions

diff --git a/.dir-locals.el b/.dir-locals.el
index 550e06ef09..228685a69f 100644
--- a/.dir-locals.el
+++ b/.dir-locals.el
@@ -34,6 +34,8 @@
 
    (eval . (put 'modify-services 'scheme-indent-function 1))
    (eval . (put 'with-directory-excursion 'scheme-indent-function 1))
+   (eval . (put 'with-file-lock 'scheme-indent-function 1))
+
    (eval . (put 'package 'scheme-indent-function 0))
    (eval . (put 'origin 'scheme-indent-function 0))
    (eval . (put 'build-system 'scheme-indent-function 0))
@@ -53,6 +55,8 @@
    (eval . (put 'call-with-decompressed-port 'scheme-indent-function 2))
    (eval . (put 'call-with-gzip-input-port 'scheme-indent-function 1))
    (eval . (put 'call-with-gzip-output-port 'scheme-indent-function 1))
+   (eval . (put 'call-with-lzip-input-port 'scheme-indent-function 1))
+   (eval . (put 'call-with-lzip-output-port 'scheme-indent-function 1))
    (eval . (put 'signature-case 'scheme-indent-function 1))
    (eval . (put 'emacs-batch-eval 'scheme-indent-function 0))
    (eval . (put 'emacs-batch-edit-file 'scheme-indent-function 1))
diff --git a/Makefile.am b/Makefile.am
index ba4528ce87..80be73e4bf 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -144,6 +144,7 @@ MODULES =					\
   guix/svn-download.scm				\
   guix/colors.scm				\
   guix/i18n.scm					\
+  guix/diagnostics.scm				\
   guix/ui.scm					\
   guix/status.scm				\
   guix/build/android-ndk-build-system.scm	\
diff --git a/doc/guix.texi b/doc/guix.texi
index 88fd679f42..1364d9b42e 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -64,6 +64,7 @@ Copyright @copyright{} 2018 Laura Lazzati@*
 Copyright @copyright{} 2018 Alex Vong@*
 Copyright @copyright{} 2019 Josh Holland@*
 Copyright @copyright{} 2019 Diego Nicola Barbato@*
+Copyright @copyright{} 2019 Ivan Petkov@*
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or
@@ -569,7 +570,7 @@ you may have to run @code{su -} or @code{sudo -i}.  As @code{root}, run:
 @example
 # cd /tmp
 # tar --warning=no-timestamp -xf \
-     guix-binary-@value{VERSION}.@var{system}.tar.xz
+     /path/to/guix-binary-@value{VERSION}.@var{system}.tar.xz
 # mv var/guix /var/ && mv gnu /
 @end example
 
@@ -758,6 +759,11 @@ Support for build offloading (@pxref{Daemon Offload Setup}) and
 version 0.10.2 or later.
 
 @item
+When @url{https://www.nongnu.org/lzip/lzlib.html, lzlib} is available, lzlib
+substitutes can be used and @command{guix publish} can compress substitutes
+with lzlib.
+
+@item
 When @url{http://www.bzip.org, libbz2} is available,
 @command{guix-daemon} can use it to compress build logs.
 @end itemize
@@ -4214,7 +4220,7 @@ to another like this:
 
 @example
 guix archive --export -r $(readlink -f ~/.guix-profile) | \
-  ssh the-machine guix-archive --import
+  ssh the-machine guix archive --import
 @end example
 
 @noindent
@@ -4861,6 +4867,29 @@ advantage to work without requiring special kernel support, but it incurs
 run-time overhead every time a system call is made.
 @end quotation
 
+@cindex entry point, for Docker images
+@item --entry-point=@var{command}
+Use @var{command} as the @dfn{entry point} of the resulting pack, if the pack
+format supports it---currently @code{docker} and @code{squashfs} (Singularity)
+support it.  @var{command} must be relative to the profile contained in the
+pack.
+
+The entry point specifies the command that tools like @code{docker run} or
+@code{singularity run} automatically start by default.  For example, you can
+do:
+
+@example
+guix pack -f docker --entry-point=bin/guile guile
+@end example
+
+The resulting pack can easily be loaded and @code{docker run} with no extra
+arguments will spawn @code{bin/guile}:
+
+@example
+docker load -i pack.tar.gz
+docker run @var{image-id}
+@end example
+
 @item --expression=@var{expr}
 @itemx -e @var{expr}
 Consider the package @var{expr} evaluates to.
@@ -5786,10 +5815,21 @@ This variable is exported by @code{(guix build-system cargo)}.  It
 supports builds of packages using Cargo, the build tool of the
 @uref{https://www.rust-lang.org, Rust programming language}.
 
-In its @code{configure} phase, this build system replaces dependencies
-specified in the @file{Cargo.toml} file with inputs to the Guix package.
-The @code{install} phase installs the binaries, and it also installs the
-source code and @file{Cargo.toml} file.
+It adds @code{rustc} and @code{cargo} to the set of inputs.
+A different Rust package can be specified with the @code{#:rust} parameter.
+
+Regular cargo dependencies should be added to the package definition via the
+@code{#:cargo-inputs} parameter as a list of name and spec pairs, where the
+spec can be a package or a source definition.  Note that the spec must
+evaluate to a path to a gzipped tarball which includes a @code{Cargo.toml}
+file at its root, or it will be ignored.  Similarly, cargo dev-dependencies
+should be added to the package definition via the
+@code{#:cargo-development-inputs} parameter.
+
+In its @code{configure} phase, this build system will make any source inputs
+specified in the @code{#:cargo-inputs} and @code{#:cargo-development-inputs}
+parameters available to cargo.  The @code{install} phase installs any crate
+the binaries if they are defined by the crate.
 @end defvr
 
 @cindex Clojure (programming language)
@@ -6438,10 +6478,11 @@ path.  @var{references} is the list of store paths referred to by the
 resulting store path.
 @end deffn
 
-@deffn {Scheme Procedure} build-derivations @var{server} @var{derivations}
-Build @var{derivations} (a list of @code{<derivation>} objects or
-derivation paths), and return when the worker is done building them.
-Return @code{#t} on success.
+@deffn {Scheme Procedure} build-derivations @var{store} @var{derivations} @
+  [@var{mode}]
+Build @var{derivations}, a list of @code{<derivation>} objects, @file{.drv}
+file names, or derivation/output pairs, using the specified
+@var{mode}---@code{(build-mode normal)} by default.
 @end deffn
 
 Note that the @code{(guix monads)} module provides a monad as well as
@@ -9656,12 +9697,20 @@ accept connections from any interface.
 Change privileges to @var{user} as soon as possible---i.e., once the
 server socket is open and the signing key has been read.
 
-@item --compression[=@var{level}]
-@itemx -C [@var{level}]
-Compress data using the given @var{level}.  When @var{level} is zero,
-disable compression.  The range 1 to 9 corresponds to different gzip
-compression levels: 1 is the fastest, and 9 is the best (CPU-intensive).
-The default is 3.
+@item --compression[=@var{method}[:@var{level}]]
+@itemx -C [@var{method}[:@var{level}]]
+Compress data using the given @var{method} and @var{level}.  @var{method} is
+one of @code{lzip} and @code{gzip}; when @var{method} is omitted, @code{gzip}
+is used.
+
+When @var{level} is zero, disable compression.  The range 1 to 9 corresponds
+to different compression levels: 1 is the fastest, and 9 is the best
+(CPU-intensive).  The default is 3.
+
+Usually, @code{lzip} compresses noticeably better than @code{gzip} for a small
+increase in CPU usage; see
+@uref{https://nongnu.org/lzip/lzip_benchmark.html,benchmarks on the lzip Web
+page}.
 
 Unless @option{--cache} is used, compression occurs on the fly and
 the compressed streams are not
@@ -9672,6 +9721,11 @@ run @command{guix publish} behind a caching proxy, or to use
 allows @command{guix publish} to add @code{Content-Length} HTTP header
 to its responses.
 
+This option can be repeated, in which case every substitute gets compressed
+using all the selected methods, and all of them are advertised.  This is
+useful when users may not support all the compression methods: they can select
+the one they support.
+
 @item --cache=@var{directory}
 @itemx -c @var{directory}
 Cache archives and meta-data (@code{.narinfo} URLs) to @var{directory}
@@ -12214,10 +12268,19 @@ The TCP port to listen for connections.
 The host (and thus, network interface) to listen to.  Use
 @code{"0.0.0.0"} to listen on all the network interfaces.
 
-@item @code{compression-level} (default: @code{3})
-The gzip compression level at which substitutes are compressed.  Use
-@code{0} to disable compression altogether, and @code{9} to get the best
-compression ratio at the expense of increased CPU usage.
+@item @code{compression} (default: @code{'(("gzip" 3))})
+This is a list of compression method/level tuple used when compressing
+substitutes.  For example, to compress all substitutes with @emph{both} lzip
+at level 7 and gzip at level 9, write:
+
+@example
+'(("lzip" 7) ("gzip" 9))
+@end example
+
+Level 9 achieves the best compression ratio at the expense of increased CPU
+usage, whereas level 1 achieves fast compression.
+
+An empty list disables compression altogether.
 
 @item @code{nar-path} (default: @code{"nar"})
 The URL path at which ``nars'' can be fetched.  @xref{Invoking guix
@@ -13623,11 +13686,11 @@ Directory to look for faces.
 @item @code{default-path} (default "/run/current-system/profile/bin")
 Default PATH to use.
 
-@item @code{minimum-uid} (default 1000)
-Minimum UID to display in SDDM.
+@item @code{minimum-uid} (default: 1000)
+Minimum UID displayed in SDDM and allowed for log-in.
 
-@item @code{maximum-uid} (default 2000)
-Maximum UID to display in SDDM
+@item @code{maximum-uid} (default: 2000)
+Maximum UID to display in SDDM.
 
 @item @code{remember-last-user?} (default #t)
 Remember last user.
@@ -16703,6 +16766,297 @@ variables.
 @end table
 @end deftp
 
+@subsubheading Getmail service
+
+@cindex IMAP
+@cindex POP
+
+@deffn {Scheme Variable} getmail-service-type
+This is the type of the @uref{http://pyropus.ca/software/getmail/, Getmail}
+mail retriever, whose value should be an @code{getmail-configuration}.
+@end deffn
+
+Available @code{getmail-configuration} fields are:
+
+@deftypevr {@code{getmail-configuration} parameter} symbol name
+A symbol to identify the getmail service.
+
+Defaults to @samp{"unset"}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-configuration} parameter} package package
+The getmail package to use.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-configuration} parameter} string user
+The user to run getmail as.
+
+Defaults to @samp{"getmail"}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-configuration} parameter} string group
+The group to run getmail as.
+
+Defaults to @samp{"getmail"}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-configuration} parameter} string directory
+The getmail directory to use.
+
+Defaults to @samp{"/var/lib/getmail/default"}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-configuration} parameter} getmail-configuration-file rcfile
+The getmail configuration file to use.
+
+Available @code{getmail-configuration-file} fields are:
+
+@deftypevr {@code{getmail-configuration-file} parameter} getmail-retriever-configuration retriever
+What mail account to retrieve mail from, and how to access that account.
+
+Available @code{getmail-retriever-configuration} fields are:
+
+@deftypevr {@code{getmail-retriever-configuration} parameter} string type
+The type of mail retriever to use.  Valid values include @samp{passwd}
+and @samp{static}.
+
+Defaults to @samp{"SimpleIMAPSSLRetriever"}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-retriever-configuration} parameter} string server
+Space separated list of arguments to the userdb driver.
+
+Defaults to @samp{unset}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-retriever-configuration} parameter} string username
+Space separated list of arguments to the userdb driver.
+
+Defaults to @samp{unset}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-retriever-configuration} parameter} non-negative-integer port
+Space separated list of arguments to the userdb driver.
+
+Defaults to @samp{#f}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-retriever-configuration} parameter} string password
+Override fields from passwd.
+
+Defaults to @samp{""}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-retriever-configuration} parameter} list password-command
+Override fields from passwd.
+
+Defaults to @samp{()}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-retriever-configuration} parameter} string keyfile
+PEM-formatted key file to use for the TLS negotiation
+
+Defaults to @samp{""}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-retriever-configuration} parameter} string certfile
+PEM-formatted certificate file to use for the TLS negotiation
+
+Defaults to @samp{""}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-retriever-configuration} parameter} string ca-certs
+CA certificates to use
+
+Defaults to @samp{""}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-retriever-configuration} parameter} parameter-alist extra-parameters
+Extra retriever parameters
+
+Defaults to @samp{()}.
+
+@end deftypevr
+
+@end deftypevr
+
+@deftypevr {@code{getmail-configuration-file} parameter} getmail-destination-configuration destination
+What to do with retrieved messages.
+
+Available @code{getmail-destination-configuration} fields are:
+
+@deftypevr {@code{getmail-destination-configuration} parameter} string type
+The type of mail destination.  Valid values include @samp{Maildir},
+@samp{Mboxrd} and @samp{MDA_external}.
+
+Defaults to @samp{unset}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-destination-configuration} parameter} string-or-filelike path
+The path option for the mail destination.  The behaviour depends on the
+chosen type.
+
+Defaults to @samp{""}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-destination-configuration} parameter} parameter-alist extra-parameters
+Extra destination parameters
+
+Defaults to @samp{()}.
+
+@end deftypevr
+
+@end deftypevr
+
+@deftypevr {@code{getmail-configuration-file} parameter} getmail-options-configuration options
+Configure getmail.
+
+Available @code{getmail-options-configuration} fields are:
+
+@deftypevr {@code{getmail-options-configuration} parameter} non-negative-integer verbose
+If set to @samp{0}, getmail will only print warnings and errors.  A
+value of @samp{1} means that messages will be printed about retrieving
+and deleting messages.  If set to @samp{2}, getmail will print messages
+about each of it's actions.
+
+Defaults to @samp{1}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-options-configuration} parameter} boolean read-all
+If true, getmail will retrieve all available messages.  Otherwise it
+will only retrieve messages it hasn't seen previously.
+
+Defaults to @samp{#t}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-options-configuration} parameter} boolean delete
+If set to true, messages will be deleted from the server after
+retrieving and successfully delivering them.  Otherwise, messages will
+be left on the server.
+
+Defaults to @samp{#f}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-options-configuration} parameter} non-negative-integer delete-after
+Getmail will delete messages this number of days after seeing them, if
+they have not been delivered.  This means messages will be left on the
+server this number of days after delivering them.  A value of @samp{0}
+disabled this feature.
+
+Defaults to @samp{0}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-options-configuration} parameter} non-negative-integer delete-bigger-than
+Delete messages larger than this of bytes after retrieving them, even if
+the delete and delete-after options are disabled.  A value of @samp{0}
+disables this feature.
+
+Defaults to @samp{0}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-options-configuration} parameter} non-negative-integer max-bytes-per-session
+Retrieve messages totalling up to this number of bytes before closing
+the session with the server.  A value of @samp{0} disables this feature.
+
+Defaults to @samp{0}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-options-configuration} parameter} non-negative-integer max-message-size
+Don't retrieve messages larger than this number of bytes.  A value of
+@samp{0} disables this feature.
+
+Defaults to @samp{0}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-options-configuration} parameter} boolean delivered-to
+If true, getmail will add a Delivered-To header to messages.
+
+Defaults to @samp{#t}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-options-configuration} parameter} boolean received
+If set, getmail adds a Received header to the messages.
+
+Defaults to @samp{#t}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-options-configuration} parameter} string message-log
+Getmail will record a log of its actions to the named file.  A value of
+@samp{""} disables this feature.
+
+Defaults to @samp{""}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-options-configuration} parameter} boolean message-log-syslog
+If true, getmail will record a log of its actions using the system
+logger.
+
+Defaults to @samp{#t}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-options-configuration} parameter} boolean message-log-verbose
+If true, getmail will log information about messages not retrieved and
+the reason for not retrieving them, as well as starting and ending
+information lines.
+
+Defaults to @samp{#t}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-options-configuration} parameter} parameter-alist extra-parameters
+Extra options to include.
+
+Defaults to @samp{()}.
+
+@end deftypevr
+
+@end deftypevr
+
+@end deftypevr
+
+@deftypevr {@code{getmail-configuration} parameter} list idle
+A list of mailboxes that getmail should wait on the server for new mail
+notifications.  This depends on the server supporting the IDLE
+extension.
+
+Defaults to @samp{()}.
+
+@end deftypevr
+
+@deftypevr {@code{getmail-configuration} parameter} list environment-variables
+Environment variables to set for getmail.
+
+Defaults to @samp{()}.
+
+@end deftypevr
+
 @subsubheading Mail Aliases Service
 
 @cindex email aliases
@@ -19085,6 +19439,180 @@ Additional arguments to pass to the @command{varnishd} process.
 @end table
 @end deftp
 
+@subsubheading Patchwork
+@cindex Patchwork
+Patchwork is a patch tracking system.  It can collect patches sent to a
+mailing list, and display them in a web interface.
+
+@defvr {Scheme Variable} patchwork-service-type
+Service type for Patchwork.
+@end defvr
+
+The following example is an example of a minimal service for Patchwork, for
+the @code{patchwork.example.com} domain.
+
+@example
+(service patchwork-service-type
+         (patchwork-configuration
+          (domain "patchwork.example.com")
+          (settings-module
+           (patchwork-settings-module
+            (allowed-hosts (list domain))
+            (default-from-email "patchwork@@patchwork.example.com")))
+          (getmail-retriever-config
+           (getmail-retriever-configuration
+            (type "SimpleIMAPSSLRetriever")
+            (server "imap.example.com")
+            (port 993)
+            (username "patchwork")
+            (password-command
+             (list (file-append coreutils "/bin/cat")
+                   "/etc/getmail-patchwork-imap-password"))
+            (extra-parameters
+            '((mailboxes . ("Patches"))))))))
+
+@end example
+
+There are three records for configuring the Patchwork service.  The
+@code{<patchwork-configuration>} relates to the configuration for Patchwork
+within the HTTPD service.
+
+The @code{settings-module} field within the @code{<patchwork-configuration>}
+record can be populated with the @code{<patchwork-settings-module>} record,
+which describes a settings module that is generated within the Guix store.
+
+For the @code{database-configuration} field within the
+@code{<patchwork-settings-module>}, the
+@code{<patchwork-database-configuration>} must be used.
+
+@deftp {Data Type} patchwork-configuration
+Data type representing the Patchwork service configuration.  This type has the
+following parameters:
+
+@table @asis
+@item @code{patchwork} (default: @code{patchwork})
+The Patchwork package to use.
+
+@item @code{domain}
+The domain to use for Patchwork, this is used in the HTTPD service virtual
+host.
+
+@item @code{settings-module}
+The settings module to use for Patchwork. As a Django application, Patchwork
+is configured with a Python module containing the settings. This can either be
+an instance of the @code{<patchwork-settings-module>} record, any other record
+that represents the settings in the store, or a directory outside of the
+store.
+
+@item @code{static-path}  (default: @code{"/static/"})
+The path under which the HTTPD service should serve the static files.
+
+@item @code{getmail-retriever-config}
+The getmail-retriever-configuration record value to use with
+Patchwork. Getmail will be configured with this value, the messages will be
+delivered to Patchwork.
+
+@end table
+@end deftp
+
+@deftp {Data Type} patchwork-settings-module
+Data type representing a settings module for Patchwork.  Some of these
+settings relate directly to Patchwork, but others relate to Django, the web
+framework used by Patchwork, or the Django Rest Framework library.  This type
+has the following parameters:
+
+@table @asis
+@item @code{database-configuration} (default: @code{(patchwork-database-configuration)})
+The database connection settings used for Patchwork.  See the
+@code{<patchwork-database-configuration>} record type for more information.
+
+@item @code{secret-key-file} (default: @code{"/etc/patchwork/django-secret-key"})
+Patchwork, as a Django web application uses a secret key for cryptographically
+signing values.  This file should contain a unique unpredictable value.
+
+If this file does not exist, it will be created and populated with a random
+value by the patchwork-setup shepherd service.
+
+This setting relates to Django.
+
+@item @code{allowed-hosts}
+A list of valid hosts for this Patchwork service. This should at least include
+the domain specified in the @code{<patchwork-configuration>} record.
+
+This is a Django setting.
+
+@item @code{default-from-email}
+The email address from which Patchwork should send email by default.
+
+This is a Patchwork setting.
+
+@item @code{static-url} (default: @code{#f})
+The URL to use when serving static assets. It can be part of a URL, or a full
+URL, but must end in a @code{/}.
+
+If the default value is used, the @code{static-path} value from the
+@code{<patchwork-configuration>} record will be used.
+
+This is a Django setting.
+
+@item @code{admins} (default: @code{'()})
+Email addresses to send the details of errors that occur.  Each value should
+be a list containing two elements, the name and then the email address.
+
+This is a Django setting.
+
+@item @code{debug?} (default: @code{#f})
+Whether to run Patchwork in debug mode.  If set to @code{#t}, detailed error
+messages will be shown.
+
+This is a Django setting.
+
+@item @code{enable-rest-api?} (default: @code{#t})
+Whether to enable the Patchwork REST API.
+
+This is a Patchwork setting.
+
+@item @code{enable-xmlrpc?} (default: @code{#t})
+Whether to enable the XML RPC API.
+
+This is a Patchwork setting.
+
+@item @code{force-https-links?} (default: @code{#t})
+Whether to use HTTPS links on Patchwork pages.
+
+This is a Patchwork setting.
+
+@item @code{extra-settings} (default: @code{""})
+Extra code to place at the end of the Patchwork settings module.
+
+@end table
+@end deftp
+
+@deftp {Data Type} patchwork-database-configuration
+Data type representing the database configuration for Patchwork.
+
+@table @asis
+@item @code{engine} (default: @code{"django.db.backends.postgresql_psycopg2"})
+The database engine to use.
+
+@item @code{name} (default: @code{"patchwork"})
+The name of the database to use.
+
+@item @code{user} (default: @code{"httpd"})
+The user to connect to the database as.
+
+@item @code{password} (default: @code{""})
+The password to use when connecting to the database.
+
+@item @code{host} (default: @code{""})
+The host to make the database connection to.
+
+@item @code{port} (default: @code{""})
+The port on which to connect to the database.
+
+@end table
+@end deftp
+
 @subsubheading FastCGI
 @cindex fastcgi
 @cindex fcgiwrap
@@ -22208,10 +22736,10 @@ Extra options will be passed to @code{git daemon}, please run
 @end deftp
 
 The @code{git://} protocol lacks authentication.  When you pull from a
-repository fetched via @code{git://}, you don't know that the data you
-receive was modified is really coming from the specified host, and you
-have your connection is subject to eavesdropping.  It's better to use an
-authenticated and encrypted transport, such as @code{https}.  Although Git allows you
+repository fetched via @code{git://}, you don't know whether the data you
+receive was modified or is even coming from the specified host, and your
+connection is subject to eavesdropping.  It's better to use an authenticated
+and encrypted transport, such as @code{https}.  Although Git allows you
 to serve repositories using unsophisticated file-based web servers,
 there is a faster protocol implemented by the @code{git-http-backend}
 program.  This program is the back-end of a proper Git web service.  It
@@ -23598,7 +24126,7 @@ The following is an example @code{dicod-service} configuration.
 @cindex Docker
 @subsubheading Docker Service
 
-The @code{(gnu services docker)} module provides the following service.
+The @code{(gnu services docker)} module provides the following services.
 
 @defvr {Scheme Variable} docker-service-type
 
@@ -23622,6 +24150,107 @@ The Containerd package to use.
 @end table
 @end deftp
 
+@cindex Audit
+@subsubheading Auditd Service
+
+The @code{(gnu services auditd)} module provides the following service.
+
+@defvr {Scheme Variable} auditd-service-type
+
+This is the type of the service that runs
+@url{https://people.redhat.com/sgrubb/audit/,auditd},
+a daemon that tracks security-relevant information on your system.
+
+Examples of things that can be tracked:
+
+@enumerate
+@item
+File accesses
+@item
+System calls
+@item
+Invoked commands
+@item
+Failed login attempts
+@item
+Firewall filtering
+@item
+Network access
+@end enumerate
+
+@command{auditctl} from the @code{audit} package can be used in order
+to add or remove events to be tracked (until the next reboot).
+In order to permanently track events, put the command line arguments
+of auditctl into @file{/etc/audit/audit.rules}.
+@command{aureport} from the @code{audit} package can be used in order
+to view a report of all recorded events.
+The audit daemon usually logs into the directory @file{/var/log/audit}.
+
+@end defvr
+
+@deftp {Data Type} auditd-configuration
+This is the data type representing the configuration of auditd.
+
+@table @asis
+
+@item @code{audit} (default: @code{audit})
+The audit package to use.
+
+@end table
+@end deftp
+
+@defvr {Scheme Variable} singularity-service-type
+This is the type of the service that allows you to run
+@url{https://www.sylabs.io/singularity/, Singularity}, a Docker-style tool to
+create and run application bundles (aka. ``containers'').  The value for this
+service is the Singularity package to use.
+
+The service does not install a daemon; instead, it installs helper programs as
+setuid-root (@pxref{Setuid Programs}) such that unprivileged users can invoke
+@command{singularity run} and similar commands.
+@end defvr
+
+@cindex Nix
+@subsubheading Nix service
+
+The @code{(gnu services nix)} module provides the following service.
+
+@defvr {Scheme Variable} nix-service-type
+
+This is the type of the service that runs build daemon of the
+@url{https://nixos.org/nix/, Nix} package manager.  Here is an example showing
+how to use it:
+
+@example
+(use-modules (gnu))
+(use-service-modules nix)
+(use-package-modules package-management)
+
+(operating-system
+  ;; @dots{}
+  (packages (append (list nix)
+                    %base-packages))
+
+  (services (append (list (service nix-service-type))
+                    %base-services)))
+@end example
+
+After @command{guix system reconfigure} configure Nix for your user:
+
+@itemize
+@item Add a Nix channel and update it.  See
+@url{https://nixos.org/nix/manual/, Nix Package Manager Guide}.
+
+@item Create a symlink to your profile and activate Nix profile:
+@end itemize
+
+@example
+$ ln -s "/nix/var/nix/profiles/per-user/$USER/profile" ~/.nix-profile
+$ source /run/current-system/profile/etc/profile.d/nix.sh
+@end example
+
+@end defvr
+
 @node Setuid Programs
 @section Setuid Programs
 
@@ -24132,7 +24761,7 @@ The bootloader theme object describing the theme to use.  If no theme
 is provided, some bootloaders might use a default theme, that's true
 for GRUB.
 
-@item @code{terminal-outputs} (default: @code{'gfxterm})
+@item @code{terminal-outputs} (default: @code{'(gfxterm)})
 The output terminals used for the bootloader boot menu, as a list of
 symbols.  GRUB accepts the values: @code{console}, @code{serial},
 @code{serial_@{0-3@}}, @code{gfxterm}, @code{vga_text},
diff --git a/etc/guix-daemon.service.in b/etc/guix-daemon.service.in
index 7b20a91931..407cdd199c 100644
--- a/etc/guix-daemon.service.in
+++ b/etc/guix-daemon.service.in
@@ -7,7 +7,7 @@ Description=Build daemon for GNU Guix
 
 [Service]
 ExecStart=@localstatedir@/guix/profiles/per-user/root/current-guix/bin/guix-daemon --build-users-group=guixbuild
-Environment=GUIX_LOCPATH='@localstatedir@/guix/profiles/per-user/root/guix-profile/lib/locale' LC_ALL=en_US.utf8
+Environment='GUIX_LOCPATH=@localstatedir@/guix/profiles/per-user/root/guix-profile/lib/locale' LC_ALL=en_US.utf8
 RemainAfterExit=yes
 StandardOutput=syslog
 StandardError=syslog
diff --git a/etc/guix-publish.service.in b/etc/guix-publish.service.in
index e61a0314ce..2dc89ef600 100644
--- a/etc/guix-publish.service.in
+++ b/etc/guix-publish.service.in
@@ -7,7 +7,7 @@ Description=Publish the GNU Guix store
 
 [Service]
 ExecStart=@localstatedir@/guix/profiles/per-user/root/current-guix/bin/guix publish --user=nobody --port=8181
-Environment=GUIX_LOCPATH='@localstatedir@/guix/profiles/per-user/root/guix-profile/lib/locale' LC_ALL=en_US.utf8
+Environment='GUIX_LOCPATH=@localstatedir@/guix/profiles/per-user/root/guix-profile/lib/locale' LC_ALL=en_US.utf8
 RemainAfterExit=yes
 StandardOutput=syslog
 StandardError=syslog
diff --git a/gnu/artwork.scm b/gnu/artwork.scm
index b95f5cbf8a..f404467dd7 100644
--- a/gnu/artwork.scm
+++ b/gnu/artwork.scm
@@ -29,7 +29,7 @@
 ;;; Code:
 
 (define %artwork-repository
-  (let ((commit "b975164c19c9c0f5d91e5731ec1683e7510c1326"))
+  (let ((commit "2f2fe74c1078be605a6a93c2193fd6c715cebbb0"))
     (origin
       (method git-fetch)
       (uri (git-reference
@@ -39,6 +39,6 @@
                                 "-checkout"))
       (sha256
        (base32
-        "1fad7az077q9ds3jhp00jfsr8rfw4ws042wmnai52k7jv4kbxwyf")))))
+        "0c8r0phvm3wgf914n2kw1461cwdjl2zbzqvzq9x7d9pwkgv7xmq7")))))
 
 ;;; artwork.scm ends here
diff --git a/gnu/build/accounts.scm b/gnu/build/accounts.scm
index c43ce85b60..b90149565f 100644
--- a/gnu/build/accounts.scm
+++ b/gnu/build/accounts.scm
@@ -19,6 +19,7 @@
 (define-module (gnu build accounts)
   #:use-module (guix records)
   #:use-module (guix combinators)
+  #:use-module ((guix build syscalls) #:select (fdatasync))
   #:use-module (gnu system accounts)
   #:use-module (srfi srfi-1)
   #:use-module (srfi srfi-11)
@@ -51,6 +52,7 @@
             group-entry-gid
             group-entry-members
 
+            %password-lock-file
             write-group
             write-passwd
             write-shadow
@@ -224,6 +226,19 @@ each field."
                    (serialization list->comma-separated comma-separated->list)
                    (default '())))
 
+(define %password-lock-file
+  ;; The password database lock file used by libc's 'lckpwdf'.  Users should
+  ;; grab this lock with 'with-file-lock' when they access the databases.
+  "/etc/.pwd.lock")
+
+(define-syntax-rule (catch-ENOSYS exp)
+  (catch 'system-error
+    (lambda () exp)
+    (lambda args
+      (if (= ENOSYS (system-error-errno args))
+          #f
+          (apply throw args)))))
+
 (define (database-writer file mode entry->string)
   (lambda* (entries #:optional (file-or-port file))
     "Write ENTRIES to FILE-OR-PORT.  When FILE-OR-PORT is a file name, write
@@ -243,9 +258,16 @@ to it atomically and set the appropriate permissions."
             (lambda ()
               (chmod port mode)
               (write-entries port)
+
+              ;; XXX: When booting with the statically-linked Guile,
+              ;; 'fdatasync' is unavailable.
+              (catch-ENOSYS (fdatasync port))
+
+              (close-port port)
               (rename-file template file-or-port))
             (lambda ()
-              (close-port port)
+              (unless (port-closed? port)
+                (close-port port))
               (when (file-exists? template)
                 (delete-file template))))))))
 
diff --git a/gnu/build/activation.scm b/gnu/build/activation.scm
index cfdf17df0f..c6c7e7fd3b 100644
--- a/gnu/build/activation.scm
+++ b/gnu/build/activation.scm
@@ -22,6 +22,7 @@
   #:use-module (gnu build accounts)
   #:use-module (gnu build linux-boot)
   #:use-module (guix build utils)
+  #:use-module ((guix build syscalls) #:select (with-file-lock))
   #:use-module (ice-9 ftw)
   #:use-module (ice-9 match)
   #:use-module (ice-9 vlist)
@@ -129,22 +130,26 @@ group records) are all available."
   ;; Allow home directories to be created under /var/lib.
   (mkdir-p "/var/lib")
 
-  (let-values (((groups passwd shadow)
-                (user+group-databases users groups)))
-    (write-group groups)
-    (write-passwd passwd)
-    (write-shadow shadow)
-
-    ;; Home directories of non-system accounts are created by
-    ;; 'activate-user-home'.
-    (for-each make-home-directory system-accounts)
-
-    ;; Turn shared home directories, such as /var/empty, into root-owned,
-    ;; read-only places.
-    (for-each (lambda (directory)
-                (chown directory 0 0)
-                (chmod directory #o555))
-              (duplicates (map user-account-home-directory system-accounts)))))
+  ;; Take same lock as libc's 'lckpwdf' (but without a timeout) while we read
+  ;; and write the databases.  This ensures there's no race condition with
+  ;; other tools that might be accessing it at the same time.
+  (with-file-lock %password-lock-file
+    (let-values (((groups passwd shadow)
+                  (user+group-databases users groups)))
+      (write-group groups)
+      (write-passwd passwd)
+      (write-shadow shadow)))
+
+  ;; Home directories of non-system accounts are created by
+  ;; 'activate-user-home'.
+  (for-each make-home-directory system-accounts)
+
+  ;; Turn shared home directories, such as /var/empty, into root-owned,
+  ;; read-only places.
+  (for-each (lambda (directory)
+              (chown directory 0 0)
+              (chmod directory #o555))
+            (duplicates (map user-account-home-directory system-accounts))))
 
 (define (activate-user-home users)
   "Create and populate the home directory of USERS, a list of tuples, unless
diff --git a/gnu/build/linux-boot.scm b/gnu/build/linux-boot.scm
index a35d18ad7c..03f2ea245c 100644
--- a/gnu/build/linux-boot.scm
+++ b/gnu/build/linux-boot.scm
@@ -517,6 +517,8 @@ upon error."
          (unless (pre-mount)
            (error "pre-mount actions failed")))
 
+       (setenv "EXT2FS_NO_MTAB_OK" "1")
+
        (if root
            ;; The "--root=SPEC" kernel command-line option always provides a
            ;; string, but the string can represent a device, a UUID, or a
@@ -533,6 +535,8 @@ upon error."
        (for-each mount-file-system
                  (remove root-mount-point? mounts))
 
+       (setenv "EXT2FS_NO_MTAB_OK" #f)
+
        (if to-load
            (begin
              (switch-root "/root")
diff --git a/gnu/build/locale.scm b/gnu/build/locale.scm
new file mode 100644
index 0000000000..412759a320
--- /dev/null
+++ b/gnu/build/locale.scm
@@ -0,0 +1,95 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2019 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu build locale)
+  #:use-module (guix build utils)
+  #:use-module (srfi srfi-1)
+  #:use-module (ice-9 rdelim)
+  #:use-module (ice-9 match)
+  #:use-module (ice-9 regex)
+  #:export (build-locale
+            normalize-codeset
+            locale->name+codeset
+            read-supported-locales))
+
+(define locale-rx
+  ;; Regexp matching a locale line in 'localedata/SUPPORTED'.
+  (make-regexp
+   "^[[:space:]]*([[:graph:]]+)/([[:graph:]]+)[[:space:]]*\\\\$"))
+
+(define (read-supported-locales port)
+  "Read the 'localedata/SUPPORTED' file from PORT.  That file is actually a
+makefile snippet, with one locale per line, and a header that can be
+discarded."
+  (let loop ((locales '()))
+    (define line
+      (read-line port))
+
+    (cond ((eof-object? line)
+           (reverse locales))
+          ((string-prefix? "#" (string-trim line)) ;comment
+           (loop locales))
+          ((string-contains line "=")            ;makefile variable assignment
+           (loop locales))
+          (else
+           (match (regexp-exec locale-rx line)
+             (#f
+              (loop locales))
+             (m
+              (loop (alist-cons (match:substring m 1)
+                                (match:substring m 2)
+                                locales))))))))
+
+(define (normalize-codeset codeset)
+  "Compute the \"normalized\" variant of CODESET."
+  ;; info "(libc) Using gettextized software", for the algorithm used to
+  ;; compute the normalized codeset.
+  (letrec-syntax ((-> (syntax-rules ()
+                        ((_ proc value)
+                         (proc value))
+                        ((_ proc rest ...)
+                         (proc (-> rest ...))))))
+    (-> (lambda (str)
+          (if (string-every char-set:digit str)
+              (string-append "iso" str)
+              str))
+        string-downcase
+        (lambda (str)
+          (string-filter char-set:letter+digit str))
+        codeset)))
+
+(define* (build-locale locale
+                       #:key
+                       (localedef "localedef")
+                       (directory ".")
+                       (codeset "UTF-8")
+                       (name (string-append locale "." codeset)))
+  "Compute locale data for LOCALE and CODESET--e.g., \"en_US\" and
+\"UTF-8\"--with LOCALEDEF, and store it in DIRECTORY under NAME."
+  (format #t "building locale '~a'...~%" name)
+  (invoke localedef "--no-archive" "--prefix" directory
+          "-i" locale "-f" codeset
+          (string-append directory "/" name)))
+
+(define (locale->name+codeset locale)
+  "Split a locale name such as \"aa_ER@saaho.UTF-8\" into two values: the
+language/territory/modifier part, and the codeset."
+  (match (string-rindex locale #\.)
+    (#f  (values locale #f))
+    (dot (values (string-take locale dot)
+                 (string-drop locale (+ dot 1))))))
diff --git a/gnu/installer/connman.scm b/gnu/installer/connman.scm
index ef8cca3952..7f47b9af77 100644
--- a/gnu/installer/connman.scm
+++ b/gnu/installer/connman.scm
@@ -108,7 +108,7 @@
 (define-record-type* <service>
   service make-service
   service?
-  (name            service-name) ; string
+  (name            service-name) ; string or #f
   (type            service-type) ; string
   (path            service-path) ; string
   (strength        service-strength) ; integer
diff --git a/gnu/installer/locale.scm b/gnu/installer/locale.scm
index 2ee5eecd96..13f3a1e881 100644
--- a/gnu/installer/locale.scm
+++ b/gnu/installer/locale.scm
@@ -19,6 +19,7 @@
 
 (define-module (gnu installer locale)
   #:use-module (gnu installer utils)
+  #:use-module ((gnu build locale) #:select (normalize-codeset))
   #:use-module (guix records)
   #:use-module (json)
   #:use-module (srfi srfi-1)
@@ -71,24 +72,6 @@ optionally, CODESET."
       (codeset   . ,(or codeset (match:substring matches 5)))
       (modifier  . ,(match:substring matches 7)))))
 
-(define (normalize-codeset codeset)
-  "Compute the \"normalized\" variant of CODESET."
-  ;; info "(libc) Using gettextized software", for the algorithm used to
-  ;; compute the normalized codeset.
-  (letrec-syntax ((-> (syntax-rules ()
-                        ((_ proc value)
-                         (proc value))
-                        ((_ proc rest ...)
-                         (proc (-> rest ...))))))
-    (-> (lambda (str)
-          (if (string-every char-set:digit str)
-              (string-append "iso" str)
-              str))
-        string-downcase
-        (lambda (str)
-          (string-filter char-set:letter+digit str))
-        codeset)))
-
 (define (locale->locale-string locale)
   "Reverse operation of locale-string->locale."
   (let ((language (locale-language locale))
diff --git a/gnu/installer/newt/network.scm b/gnu/installer/newt/network.scm
index 0a938db103..40d85817b6 100644
--- a/gnu/installer/newt/network.scm
+++ b/gnu/installer/newt/network.scm
@@ -62,7 +62,7 @@ Internet and return the selected technology. For now, only technologies with
             (G_ "Continue")
             (G_ "Exit")
             (G_ "The install process requires Internet access but no \
-network device were found. Do you want to continue anyway?"))
+network devices were found. Do you want to continue anyway?"))
        ((1) (raise
              (condition
               (&installer-step-break))))
diff --git a/gnu/installer/newt/wifi.scm b/gnu/installer/newt/wifi.scm
index da2f0b56d0..1cb2ef2df3 100644
--- a/gnu/installer/newt/wifi.scm
+++ b/gnu/installer/newt/wifi.scm
@@ -144,6 +144,7 @@ of <service-item> records present in LISTBOX."
   (let ((services (connman-services)))
     (filter (lambda (service)
               (and (string=? (service-type service) "wifi")
+                   (service-name service)
                    (not (string-null? (service-name service)))))
             services)))
 
diff --git a/gnu/installer/parted.scm b/gnu/installer/parted.scm
index bd2640d1ad..682e233d9f 100644
--- a/gnu/installer/parted.scm
+++ b/gnu/installer/parted.scm
@@ -1318,7 +1318,8 @@ USER-PARTITIONS, or return nothing."
     (()
      '())
     ((modules ...)
-     `((initrd-modules ',modules)))))
+     `((initrd-modules (append ',modules
+                               %base-initrd-modules))))))
 
 (define (user-partitions->configuration user-partitions)
   "Return the configuration field for USER-PARTITIONS."
diff --git a/gnu/installer/services.scm b/gnu/installer/services.scm
index d1dc516568..dbac79196d 100644
--- a/gnu/installer/services.scm
+++ b/gnu/installer/services.scm
@@ -75,10 +75,13 @@
       (packages '((specification->package "awesome"))))
      (desktop-environment
       (name "i3")
-      (packages '((specification->package "i3-wm"))))
+      (packages (map (lambda (package)
+                       `(specification->package ,package))
+                     '("i3-wm" "i3status" "dmenu" "st"))))
      (desktop-environment
       (name "ratpoison")
-      (packages '((specification->package "ratpoison"))))
+      (packages '((specification->package "ratpoison")
+                  (specification->package "xterm"))))
 
      ;; Networking.
      (system-service
diff --git a/gnu/local.mk b/gnu/local.mk
index 06f3f3a802..a212dbc799 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -17,7 +17,7 @@
 # Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
 # Copyright © 2017, 2018 Gábor Boskovits <boskovits@gmail.com>
 # Copyright © 2018 Amirouche Boubekki <amirouche@hypermove.net>
-# Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.com>
+# Copyright © 2018, 2019 Oleg Pykhalov <go.wigust@gmail.com>
 # Copyright © 2018 Stefan Stefanović <stefanx2ovic@gmail.com>
 # Copyright © 2018 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 #
@@ -121,6 +121,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/packages/cpp.scm 				\
   %D%/packages/cppi.scm				\
   %D%/packages/cran.scm				\
+  %D%/packages/crates-io.scm			\
   %D%/packages/cross-base.scm			\
   %D%/packages/crypto.scm			\
   %D%/packages/cryptsetup.scm			\
@@ -261,6 +262,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/packages/jrnl.scm				\
   %D%/packages/jose.scm				\
   %D%/packages/julia.scm			\
+  %D%/packages/kawa.scm				\
   %D%/packages/kde.scm				\
   %D%/packages/kde-frameworks.scm		\
   %D%/packages/kde-plasma.scm			\
@@ -468,6 +470,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/packages/uml.scm				\
   %D%/packages/unrtf.scm			\
   %D%/packages/upnp.scm				\
+  %D%/packages/usb-modeswitch.scm		\
   %D%/packages/uucp.scm				\
   %D%/packages/valgrind.scm			\
   %D%/packages/version-control.scm		\
@@ -501,6 +504,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/services.scm				\
   %D%/services/admin.scm			\
   %D%/services/audio.scm                        \
+  %D%/services/auditd.scm			\
   %D%/services/avahi.scm			\
   %D%/services/base.scm				\
   %D%/services/certbot.scm			\
@@ -516,6 +520,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/services/docker.scm			\
   %D%/services/authentication.scm		\
   %D%/services/games.scm			\
+  %D%/services/getmail.scm				\
   %D%/services/kerberos.scm			\
   %D%/services/lirc.scm				\
   %D%/services/virtualization.scm		\
@@ -524,6 +529,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/services/messaging.scm			\
   %D%/services/monitoring.scm			\
   %D%/services/networking.scm			\
+  %D%/services/nix.scm				\
   %D%/services/nfs.scm			\
   %D%/services/security-token.scm		\
   %D%/services/shepherd.scm			\
@@ -585,6 +591,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/tests/networking.scm			\
   %D%/tests/rsync.scm				\
   %D%/tests/security-token.scm			\
+  %D%/tests/singularity.scm			\
   %D%/tests/ssh.scm				\
   %D%/tests/version-control.scm			\
   %D%/tests/virtualization.scm			\
@@ -636,6 +643,7 @@ dist_installer_DATA =				\
 
 # Modules that do not need to be compiled.
 MODULES_NOT_COMPILED +=				\
+  %D%/build/locale.scm				\
   %D%/build/shepherd.scm			\
   %D%/build/svg.scm
 
@@ -688,7 +696,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/blender-2.79-newer-ffmpeg.patch		\
   %D%/packages/patches/blender-2.79-python-3.7-fix.patch	\
   %D%/packages/patches/boost-fix-icu-build.patch		\
-  %D%/packages/patches/borg-fix-hard-link-preloading.patch	\
   %D%/packages/patches/byobu-writable-status.patch		\
   %D%/packages/patches/calibre-no-updates-dialog.patch		\
   %D%/packages/patches/calibre-remove-test-bs4.patch		\
@@ -754,7 +761,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/emacs-highlight-stages-add-gexp.patch	\
   %D%/packages/patches/emacs-scheme-complete-scheme-r5rs-info.patch	\
   %D%/packages/patches/emacs-source-date-epoch.patch		\
-  %D%/packages/patches/emacs-realgud-fix-configure-ac.patch	\
   %D%/packages/patches/emacs-undohist-ignored.patch	\
   %D%/packages/patches/emacs-wordnut-require-adaptive-wrap.patch	\
   %D%/packages/patches/emacs-zones-called-interactively.patch	\
@@ -869,7 +875,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/gmp-faulty-test.patch			\
   %D%/packages/patches/gnome-shell-theme.patch			\
   %D%/packages/patches/gnome-tweaks-search-paths.patch		\
-  %D%/packages/patches/gnucash-fix-test-transaction-failure.patch \
   %D%/packages/patches/gnutls-skip-trust-store-test.patch	\
   %D%/packages/patches/gobject-introspection-absolute-shlib-path.patch \
   %D%/packages/patches/gobject-introspection-cc.patch		\
@@ -899,6 +904,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/gtk3-respect-GUIX_GTK3_PATH.patch	\
   %D%/packages/patches/gtk3-respect-GUIX_GTK3_IM_MODULE_FILE.patch \
   %D%/packages/patches/gtkglext-disable-disable-deprecated.patch \
+  %D%/packages/patches/gtksourceview-2-add-default-directory.patch \
   %D%/packages/patches/gzdoom-search-in-installed-share.patch	\
   %D%/packages/patches/handbrake-opt-in-nvenc.patch		\
   %D%/packages/patches/haskell-mode-unused-variables.patch	\
@@ -985,13 +991,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/libcroco-CVE-2017-7960.patch		\
   %D%/packages/patches/libcroco-CVE-2017-7961.patch		\
   %D%/packages/patches/libdrm-symbol-check.patch		\
-  %D%/packages/patches/libevent-dns-tests.patch			\
-  %D%/packages/patches/libevent-2.0-CVE-2016-10195.patch	\
-  %D%/packages/patches/libevent-2.0-CVE-2016-10196.patch	\
-  %D%/packages/patches/libevent-2.0-CVE-2016-10197.patch	\
-  %D%/packages/patches/libevent-2.0-evbuffer-add-use-last-with-datap.patch	\
-  %D%/packages/patches/libevent-2.1-dns-tests.patch		\
-  %D%/packages/patches/libevent-2.1-skip-failing-test.patch	\
   %D%/packages/patches/libexif-CVE-2016-6328.patch		\
   %D%/packages/patches/libexif-CVE-2017-7544.patch		\
   %D%/packages/patches/libgpg-error-gawk-compat.patch		\
@@ -1172,7 +1171,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/plink-endian-detection.patch		\
   %D%/packages/patches/plotutils-libpng-jmpbuf.patch		\
   %D%/packages/patches/podofo-cmake-3.12.patch			\
-  %D%/packages/patches/polkit-CVE-2018-19788.patch		\
   %D%/packages/patches/portaudio-audacity-compat.patch		\
   %D%/packages/patches/portmidi-modular-build.patch		\
   %D%/packages/patches/postgresql-disable-resolve_symlinks.patch	\
@@ -1283,6 +1281,8 @@ dist_patch_DATA =						\
   %D%/packages/patches/superlu-dist-awpm-grid.patch		\
   %D%/packages/patches/superlu-dist-fix-mpi-deprecations.patch	\
   %D%/packages/patches/superlu-dist-scotchmetis.patch		\
+  %D%/packages/patches/supertux-fix-build-with-gcc5.patch	\
+  %D%/packages/patches/supertux-unbundle-squirrel.patch		\
   %D%/packages/patches/swig-guile-gc.patch			\
   %D%/packages/patches/swish-e-search.patch			\
   %D%/packages/patches/swish-e-format-security.patch		\
@@ -1317,6 +1317,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/totem-meson-easy-codec.patch		\
   %D%/packages/patches/tuxpaint-stamps-path.patch		\
   %D%/packages/patches/twinkle-include-qregexpvalidator.patch	\
+  %D%/packages/patches/txr-shell.patch				\
   %D%/packages/patches/u-boot-fix-mkimage-header-verification.patch	\
   %D%/packages/patches/unzip-CVE-2014-8139.patch		\
   %D%/packages/patches/unzip-CVE-2014-8140.patch		\
@@ -1335,6 +1336,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/util-linux-tests.patch			\
   %D%/packages/patches/upower-builddir.patch			\
   %D%/packages/patches/upx-fix-CVE-2017-15056.patch		\
+  %D%/packages/patches/usb-modeswitch-accept-config-arg.patch	\
   %D%/packages/patches/valgrind-enable-arm.patch		\
   %D%/packages/patches/vboot-utils-fix-format-load-address.patch	\
   %D%/packages/patches/vboot-utils-fix-tests-show-contents.patch	\
diff --git a/gnu/packages/admin.scm b/gnu/packages/admin.scm
index 75380be594..9392c59521 100644
--- a/gnu/packages/admin.scm
+++ b/gnu/packages/admin.scm
@@ -115,14 +115,14 @@
 (define-public aide
   (package
     (name "aide")
-    (version "0.16.1")
+    (version "0.16.2")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "https://github.com/aide/aide/releases/download/v"
                            version "/aide-" version ".tar.gz"))
        (sha256
-        (base32 "1dqhc0c24wa4zid06pfy61k357yvzh28ij86bk9jf6hcqzn7qaqg"))))
+        (base32 "15xp47sz7kk1ciffw3f5xw2jg2mb2lqrbr3q6p4bkbz5dap9iy8p"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("bison" ,bison)
@@ -1734,13 +1734,13 @@ of supported upstream metrics systems simultaneously.")
 (define-public ansible
   (package
     (name "ansible")
-    (version "2.7.10")
+    (version "2.8.0")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "ansible" version))
        (sha256
-        (base32 "15721d0bxymghxnlnknq43lszlxg3ybbcp2p5v424hhw6wg2v944"))))
+        (base32 "1bpk5r5x6vdgn839n74yv2chd2ja10yfrhav0fzwa38mi5yxsd3j"))))
     (build-system python-build-system)
     (native-inputs
      `(("python-bcrypt" ,python-bcrypt)
@@ -2124,25 +2124,36 @@ results (ndiff), and a packet generation and response analysis tool (nping).")
 (define-public dstat
   (package
     (name "dstat")
-    (version "0.7.3")
+    (version "0.7.4")
     (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/dagwieers/dstat.git")
-             (commit version)))
+             (commit (string-append "v" version))))
        (file-name (git-file-name "dstat" version))
        (sha256
-        (base32 "0sbpna531034gr40w4g9cwz35s2fpf9h654paznsxw9fih91rfa5"))))
+        (base32 "1qnmkhqmjd1m3if05jj29dvr5hn6kayq9bkkkh881w472c0zhp8v"))))
     (build-system gnu-build-system)
     (arguments
      `(#:tests? #f                      ; no make check
        #:make-flags (let ((out (assoc-ref %outputs "out")))
                       (list (string-append "DESTDIR=" out)
                             "prefix=/"))
-       ;; No configure script.
-       #:phases (modify-phases %standard-phases (delete 'configure))))
-    (inputs `(("python-2" ,python-2)))
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)            ; no configure script
+         (add-after 'install 'wrap
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out")))
+               (wrap-program (string-append out "/bin/dstat")
+                 `("PYTHONPATH" ":" prefix (,(getenv "PYTHONPATH"))))
+               #t))))))
+    (inputs
+     ;; Python 3 is supposedly supported but prints a DeprecationWarning.
+     ;; Upstream is dead.  See <https://github.com/dagwieers/dstat/releases>.
+     `(("python" ,python-wrapper)
+       ("python-six" ,python-six)))
     (synopsis "Versatile resource statistics tool")
     (description "Dstat is a versatile replacement for @command{vmstat},
 @command{iostat}, @command{netstat}, and @command{ifstat}.  Dstat overcomes
@@ -2160,7 +2171,7 @@ throughput (in the same interval).")
 (define-public thefuck
   (package
     (name "thefuck")
-    (version "3.28")
+    (version "3.29")
     (source
      (origin
        (method git-fetch)
@@ -2169,7 +2180,7 @@ throughput (in the same interval).")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "070b2sx8r0b4hry6xg97psxlikxghmz91zicg2cm6kc1yhgz4agc"))
+        (base32 "1qhxwjjgrzpqrqjv7l2847ywpln76lyd6j8bl9gz2r6kl0fx2fqs"))
        (patches (search-patches "thefuck-test-environ.patch"))))
     (build-system python-build-system)
     (arguments
@@ -2849,7 +2860,7 @@ Python loading in HPC environments.")
   (let ((real-name "inxi"))
     (package
       (name "inxi-minimal")
-      (version "3.0.33-1")
+      (version "3.0.34-1")
       (source
        (origin
          (method git-fetch)
@@ -2858,7 +2869,7 @@ Python loading in HPC environments.")
                (commit version)))
          (file-name (git-file-name real-name version))
          (sha256
-          (base32 "19bfdid4zp39irsdq3m6yyqf2336c30da35qgslrzcr2vh815g8c"))))
+          (base32 "0x2s40lwsan2pk292nspjgyw00f9f5fdfmwfvl50924pxhyxn2fh"))))
       (build-system trivial-build-system)
       (inputs
        `(("bash" ,bash-minimal)
diff --git a/gnu/packages/aidc.scm b/gnu/packages/aidc.scm
index afcb33ad6d..61d3331c97 100644
--- a/gnu/packages/aidc.scm
+++ b/gnu/packages/aidc.scm
@@ -3,6 +3,7 @@
 ;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2017 Hartmut Goebel <h.goebel@crazy-compilers.com>
 ;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2019 Guillaume Le Vaillant <glv@posteo.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -26,8 +27,15 @@
   #:use-module (guix download)
   #:use-module (guix git-download)
   #:use-module (gnu packages autotools)
-  #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages imagemagick)
+  #:use-module (gnu packages glib)
+  #:use-module (gnu packages gtk)
   #:use-module (gnu packages image)
+  #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages python)
+  #:use-module (gnu packages python-xyz)
+  #:use-module (gnu packages qt)
+  #:use-module (gnu packages video)
   #:use-module (guix build-system gnu))
 
 
@@ -102,3 +110,48 @@ characters, and is highly robust.")
 barcodes of the modern ECC200 variety.  libdmtx is a shared library, allowing
 C/C++ programs to use its capabilities without restrictions or overhead.")
     (license license:bsd-3)))
+
+(define-public zbar
+  (package
+    (name "zbar")
+    (version "0.23")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://linuxtv.org/downloads/zbar/zbar-"
+                           version
+                           ".tar.bz2"))
+       (sha256
+        (base32
+         "0bmd93a15qpgbsq9c9j33qms18rdrgz6gbc48zi6z9w5pvrvi7z9"))))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:configure-flags (list "--with-gtk=auto"
+                               "--with-python=auto"
+                               (string-append "--with-dbusconfdir="
+                                              (assoc-ref %outputs "out")
+                                              "/etc")
+                               "CXXFLAGS=-std=c++11")))
+    (native-inputs
+     `(("glib" ,glib "bin")
+       ("pkg-config" ,pkg-config)))
+    (inputs
+     `(("gobject-introspection" ,gobject-introspection)
+       ("gtk+" ,gtk+)
+       ("imagemagick" ,imagemagick)
+       ("libjpeg" ,libjpeg-turbo)
+       ("python" ,python)
+       ("qtbase" ,qtbase)
+       ("qtx11extras" ,qtx11extras)
+       ("v4l-utils" ,v4l-utils)))
+    (synopsis "Bar code reader")
+    (description
+     "ZBar can read barcodes from various sources, such as video streams,
+image files, and raw intensity sensors.  It supports EAN-13/UPC-A, UPC-E,
+EAN-8, Code 128, Code 93, Code 39, Codabar, Interleaved 2 of 5, QR Code and SQ
+Code.  Included with the library are basic applications for decoding captured
+bar code images and using a video device (e.g. webcam) as a bar code scanner.
+For application developers, language bindings are included for C, C++ and
+Python as well as GUI widgets for GTK and Qt.")
+    (home-page "https://github.com/mchehab/zbar")
+    (license license:lgpl2.1+)))
diff --git a/gnu/packages/algebra.scm b/gnu/packages/algebra.scm
index 128d41a570..69163a43d9 100644
--- a/gnu/packages/algebra.scm
+++ b/gnu/packages/algebra.scm
@@ -251,7 +251,7 @@ precision.")
 (define-public giac
   (package
     (name "giac")
-    (version "1.5.0-49")
+    (version "1.5.0-57")
     (source (origin
               (method url-fetch)
               ;; "~parisse/giac" is not used because the maintainer regularly
@@ -263,7 +263,7 @@ precision.")
                                   "source/giac_" version ".tar.gz"))
               (sha256
                (base32
-                "0f4pkand9vmqfayw18jm5qxbhcwi1405qfd7ibzh9lwzz6amkm3l"))))
+                "08c93knsisbk9dkyyrignw0wvqbr1sa5czlvk5l307ahxbbmqncf"))))
     (build-system gnu-build-system)
     (arguments
      `(#:modules ((ice-9 ftw)
diff --git a/gnu/packages/animation.scm b/gnu/packages/animation.scm
index b46382c035..08bf4eb1de 100644
--- a/gnu/packages/animation.scm
+++ b/gnu/packages/animation.scm
@@ -264,7 +264,7 @@ waveform until they line up with the proper sounds.")
 (define-public pencil2d
   (package
     (name "pencil2d")
-    (version "0.6.3")
+    (version "0.6.4")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -273,7 +273,7 @@ waveform until they line up with the proper sounds.")
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "097xwvhw7vl9pgknhb40zs6adf7mb1xxfc73h4kiqgp6z59prjl3"))))
+                "0zi8x0w8n817zds2lyw9l8j33c03kiybkrcyy3s5fg66mchmrwnr"))))
     (build-system gnu-build-system)
     (inputs
      `(("qtbase" ,qtbase)
diff --git a/gnu/packages/aspell.scm b/gnu/packages/aspell.scm
index 7f898b2f88..4f6f1a1cca 100644
--- a/gnu/packages/aspell.scm
+++ b/gnu/packages/aspell.scm
@@ -6,6 +6,7 @@
 ;;; Copyright © 2016 Christopher Andersson <christopher@8bits.nu>
 ;;; Copyright © 2016 Theodoros Foradis <theodoros@foradis.org>
 ;;; Copyright © 2016, 2017, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2019 Jens Mølgaard <jens@zete.tk>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -31,7 +32,8 @@
   #:use-module (gnu packages)
   #:use-module (gnu packages base)
   #:use-module (gnu packages compression)
-  #:use-module (gnu packages perl))
+  #:use-module (gnu packages perl)
+  #:use-module (ice-9 match))
 
 (define-public aspell
   (package
@@ -102,7 +104,14 @@ dictionaries, including personal ones.")
 (define* (aspell-dictionary dict-name full-name
                             #:key version sha256 (prefix "aspell6-"))
   (package
-    (name (string-append "aspell-dict-" dict-name))
+    (name (string-append
+           "aspell-dict-"
+           ;; Downcase and replace underscore in package names
+           ;; to follow Guix naming conventions.
+           (string-map (match-lambda
+                         (#\_ #\-)
+                         (chr chr))
+           (string-downcase dict-name))))
     (version version)
     (source (origin
               (method url-fetch)
@@ -132,6 +141,22 @@ dictionaries, including personal ones.")
     (home-page "http://aspell.net/")))
 
 
+(define-public aspell-dict-ar
+  (aspell-dictionary "ar" "Arabic"
+                     #:version "1.2-0"
+		     #:prefix "aspell6-"
+                     #:sha256
+                     (base32
+                      "1avw40bp8yi5bnkq64ihm2rldgw34lk89yz281q9bmndh95a47h4")))
+
+(define-public aspell-dict-be
+  (aspell-dictionary "be" "Belarusian"
+                     #:version "0.01"
+                     #:prefix "aspell5-"
+                     #:sha256
+                     (base32
+                      "1svls9p7rsfi3hs0afh0cssj006qb4v1ik2yzqgj8hm10c6as2sm")))
+
 (define-public aspell-dict-ca
   (aspell-dictionary "ca" "Catalan"
                      #:version "2.1.5-1"
@@ -146,6 +171,14 @@ dictionaries, including personal ones.")
                      (base32
                       "01p92qj66cqb346gk7hjfynaap5sbcn85xz07kjfdq623ghr8v5s")))
 
+(define-public aspell-dict-da
+  (aspell-dictionary "da" "Danish"
+                     #:version "1.4.42-1"
+                     #:prefix "aspell5-"
+                     #:sha256
+                     (base32
+                      "1hfkmiyhgrx5lgrb2mffjbdn1hivrm73wcg7x0iid74p2yb0fjpp")))
+
 (define-public aspell-dict-el
   (aspell-dictionary "el" "Greek"
                      #:version "0.08-0"
@@ -175,6 +208,14 @@ dictionaries, including personal ones.")
                      (base32
                       "1k5g328ac1hdpp6fsg57d8md6i0aqcwlszp3gbmp5706wyhpydmd")))
 
+(define-public aspell-dict-fi
+  (aspell-dictionary "fi" "Finnish"
+                     #:version "0.7-0"
+                     #:prefix "aspell6-"
+                     #:sha256
+                     (base32
+                      "07d5s08ba4dd89cmwy9icc01i6fjdykxlb9ravmhdrhi8mxz1mzq")))
+
 (define-public aspell-dict-fr
   (aspell-dictionary "fr" "French"
                      #:version "0.50-3"
@@ -197,6 +238,14 @@ dictionaries, including personal ones.")
                      (base32
                       "13bhbghx5b8g0119g3wxd4n8mlf707y41vlf59irxjj0kynankfn")))
 
+(define-public aspell-dict-hi
+  (aspell-dictionary "hi" "Hindi"
+                     #:version "0.02-0"
+                     #:prefix "aspell6-"
+                     #:sha256
+                     (base32
+                      "0drs374qz4419zx1lf2k281ydxf2750jk5ailafj1x0ncz27h1ys")))
+
 (define-public aspell-dict-it
   (let ((version "2.4-20070901-0")
         (sha256
@@ -218,6 +267,13 @@ dictionaries, including personal ones.")
        (home-page
         "http://linguistico.sourceforge.net/pages/dizionario_italiano.html"))))
 
+(define-public aspell-dict-mi
+  (aspell-dictionary "mi" "Maori"
+                     #:version "0.50-0"
+                     #:sha256
+                     (base32
+                      "12bxplpd348yx8d2q8qvahi9dlp7qf28qmanzhziwc7np8rixvmy")))
+
 (define-public aspell-dict-nl
   (aspell-dictionary "nl" "Dutch"
                      #:version "0.50-2"
@@ -226,14 +282,29 @@ dictionaries, including personal ones.")
                      (base32
                       "0ffb87yjsh211hllpc4b9khqqrblial4pzi1h9r3v465z1yhn3j4")))
 
+(define-public aspell-dict-nn
+  (aspell-dictionary "nn" "Norwegian Nynorsk"
+                     #:version "0.50.1-1"
+                     #:sha256
+                     (base32
+                      "0w2k5l5rbqpliripgqwiqixz5ghnjf7i9ggbrc4ly4vy1ia10rmc")))
+
 (define-public aspell-dict-pt-br
-  (aspell-dictionary "pt-br" "Brazilian Portuguese"
+  (aspell-dictionary "pt_BR" "Brazilian Portuguese"
                      #:version "20090702-0"
                      #:prefix "aspell6-"
                      #:sha256
                      (base32
                       "1y09lx9zf2rnp55r16b2vgj953l3538z1vaqgflg9mdvm555bz3p")))
 
+(define-public aspell-dict-pt-pt
+  (aspell-dictionary "pt_PT" "Portuguese"
+                     #:version "20070510-0"
+                     #:prefix "aspell6-"
+                     #:sha256
+                     (base32
+                      "1mnr994cwlag6shy8865ky99lymysiln07mbldcncahg90dagdxq")))
+
 (define-public aspell-dict-ru
   (aspell-dictionary "ru" "Russian"
                      #:version "0.99f7-1"
@@ -249,6 +320,13 @@ dictionaries, including personal ones.")
                      (base32
                       "02jwkjhr32kvyibnyzgx3smbnm576jwdzg3avdf6zxwckhy5fw4v")))
 
+(define-public aspell-dict-uk
+  (aspell-dictionary "uk" "Ukrainian"
+                     #:version "1.4.0-0"
+                     #:sha256
+                     (base32
+                      "137i4njvnslab6l4s291s11xijr5jsy75lbdph32f9y183lagy9m")))
+
 
 ;;;
 ;;; Hunspell packages made from the Aspell word lists.
diff --git a/gnu/packages/astronomy.scm b/gnu/packages/astronomy.scm
index ab5dcd92a7..9ddb9e1d52 100644
--- a/gnu/packages/astronomy.scm
+++ b/gnu/packages/astronomy.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2016 John Darrington <jmd@gnu.org>
-;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018, 2019 Efraim Flashner <efraim@flashner.co.il>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -37,15 +37,15 @@
 (define-public cfitsio
   (package
     (name "cfitsio")
-    (version "3.450")
+    (version "3.47")
     (source
      (origin
        (method url-fetch)
        (uri (string-append
              "http://heasarc.gsfc.nasa.gov/FTP/software/fitsio/c/"
-             name (string-replace-substring version "." "") ".tar.gz"))
+             name "-" version ".tar.gz"))
        (sha256
-        (base32 "0bmrkw6w65zb0k3mszaaqy1f4zjm2hl7njww74nb5v38wvdi4q5z"))))
+        (base32 "1vzlxnrjckz78p2wf148v2z3krkwnykfqvlj42sz3q711vqid1a1"))))
     (build-system gnu-build-system)
     ;; XXX Building with curl currently breaks wcslib.  It doesn't use
     ;; pkg-config and hence won't link with -lcurl.
diff --git a/gnu/packages/audio.scm b/gnu/packages/audio.scm
index c897e30458..9defc59b93 100644
--- a/gnu/packages/audio.scm
+++ b/gnu/packages/audio.scm
@@ -174,14 +174,14 @@ Filter) modules follow the convention of 1V / Octave.")
         "--enable-jack"
         "--enable-sndfile"
         "--enable-samplerate"
-        ;; TODO: enable compilation with avcodec once available.
-        "--disable-avcodec")
+        "--enable-avcodec")
        #:python ,python-2))
     (inputs
      `(("jack" ,jack-1)
        ("libsndfile" ,libsndfile)
        ("libsamplerate" ,libsamplerate)
-       ("fftwf" ,fftwf)))
+       ("fftwf" ,fftwf)
+       ("ffmpeg" ,ffmpeg))) ; for libavcodec
     (native-inputs
      `(("pkg-config" ,pkg-config)))
     (home-page "https://aubio.org/")
@@ -2120,14 +2120,14 @@ different audio devices such as ALSA or PulseAudio.")
 (define-public qjackctl
   (package
     (name "qjackctl")
-    (version "0.5.7")
+    (version "0.5.8")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://sourceforge/qjackctl/qjackctl/"
                                   version "/qjackctl-" version ".tar.gz"))
               (sha256
                (base32
-                "1g6a5j74p45yisl28bw4fcc9nr6b710ikk459p4mp6djh9gs8v95"))))
+                "1r5hf3hcr20n93jrrm7xk2zf6yx264pcr4d10cpybhrancxh602n"))))
     (build-system gnu-build-system)
     (arguments
      '(#:tests? #f))                    ; no check target
@@ -3701,7 +3701,7 @@ library.")
 (define-public faudio
   (package
     (name "faudio")
-    (version "19.05")
+    (version "19.06.07")
     (source
      (origin
        (method git-fetch)
@@ -3710,7 +3710,7 @@ library.")
              (commit version)))
        (file-name (string-append name "-" version "-checkout"))
        (sha256
-        (base32 "1dja2ykixk1ycqda116cg9fy4qg364dqj88amfln0r9pnsj2kbxk"))))
+        (base32 "1w37qp279lgpyvslwz3wlb4fp0i68ncd411rqdlk5s71b1zz466n"))))
     (arguments
      '(#:tests? #f                      ; No tests.
        #:configure-flags '("-DFFMPEG=ON")))
diff --git a/gnu/packages/backup.scm b/gnu/packages/backup.scm
index 64ed5bb14a..f62c5c3c00 100644
--- a/gnu/packages/backup.scm
+++ b/gnu/packages/backup.scm
@@ -73,7 +73,7 @@
 (define-public duplicity
   (package
     (name "duplicity")
-    (version "0.7.18.2")
+    (version "0.7.19")
     (source
      (origin
       (method url-fetch)
@@ -82,7 +82,7 @@
                           "-series/" version "/+download/duplicity-"
                           version ".tar.gz"))
       (sha256
-       (base32 "0j37dgyji36hvb5dbzlmh5rj83jwhni02yq16g6rd3hj8f7qhdn2"))))
+       (base32 "0ag9dknslxlasslwfjhqgcqbkb1mvzzx93ry7lch2lfzcdd91am6"))))
     (build-system python-build-system)
     (native-inputs
      `(("util-linux" ,util-linux)       ; setsid command, for the tests
@@ -495,15 +495,13 @@ detection, and lossless compression.")
 (define-public borg
   (package
     (name "borg")
-    (version "1.1.9")
+    (version "1.1.10")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "borgbackup" version))
        (sha256
-        (base32
-         "0x95nhv4h34m8cxycbwc4xdz350saaxlgh727b23bgn4ci7gh3vx"))
-       (patches (search-patches "borg-fix-hard-link-preloading.patch"))
+        (base32 "1pp70p4n5kamvcbl4d8021ggrxhyykmg9isjg4yd3wags8b19d7g"))
        (modules '((guix build utils)))
        (snippet
         '(begin
@@ -525,7 +523,12 @@ detection, and lossless compression.")
            ;; Remove bundled shared libraries.
            (with-directory-excursion "src/borg/algorithms"
              (for-each delete-file-recursively
-                       (list "blake2" "lz4" "zstd")))
+                       (list "blake2" "lz4" "msgpack" "zstd")))
+           ;; Purge some msgpack references from setup.py or the resulting
+           ;; sources will be unbuildable.
+           (substitute* "setup.py"
+             ((".*Extension\\('borg\\.algorithms\\.msgpack\\..*") "")
+             (("msgpack_packer_source, msgpack_unpacker_source") ""))
            #t))))
     (build-system python-build-system)
     (arguments
@@ -549,6 +552,12 @@ detection, and lossless compression.")
                ;; HOME=/homeless-shelter.
                (setenv "HOME" "/tmp")
                #t)))
+         (add-after 'unpack 'use-system-msgpack
+           (lambda _
+             (substitute* "src/borg/helpers.py"
+               (("prefer_system_msgpack = False")
+                "prefer_system_msgpack = True"))
+             #t))
          ;; The tests need to be run after Borg is installed.
          (delete 'check)
          (add-after 'install 'check
diff --git a/gnu/packages/base.scm b/gnu/packages/base.scm
index 9df0dc98d6..6585d2eebd 100644
--- a/gnu/packages/base.scm
+++ b/gnu/packages/base.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014, 2019 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2012 Nikita Karetnikov <nikita@karetnikov.org>
 ;;; Copyright © 2014, 2015, 2016, 2018 Mark H Weaver <mhw@netris.org>
@@ -992,12 +992,47 @@ to the @code{share/locale} sub-directory of this package.")
      (let ((args `(#:tests? #f #:strip-binaries? #f
                    ,@(package-arguments glibc))))
        (substitute-keyword-arguments args
+         ((#:modules modules '((guix build utils)
+                               (guix build gnu-build-system)))
+          `((srfi srfi-11)
+            (gnu build locale)
+            ,@modules))
+         ((#:imported-modules modules '())
+          `((gnu build locale)
+            ,@%gnu-build-system-modules))
          ((#:phases phases)
           `(modify-phases ,phases
              (replace 'build
                (lambda _
                  (invoke "make" "localedata/install-locales"
                          "-j" (number->string (parallel-job-count)))))
+             (add-after 'build 'symlink-normalized-codesets
+               (lambda* (#:key outputs #:allow-other-keys)
+                 ;; The above phase does not install locales with names using
+                 ;; the "normalized codeset."  Thus, create symlinks like:
+                 ;;   en_US.utf8 -> en_US.UTF-8
+                 (define (locale-directory? file stat)
+                   (and (file-is-directory? file)
+                        (string-index (basename file) #\_)
+                        (string-rindex (basename file) #\.)))
+
+                 (let* ((out (assoc-ref outputs "out"))
+                        (locales (find-files out locale-directory?
+                                             #:directories? #t)))
+                   (for-each (lambda (directory)
+                               (let*-values (((base)
+                                              (basename directory))
+                                             ((name codeset)
+                                              (locale->name+codeset base))
+                                             ((normalized)
+                                              (normalize-codeset codeset)))
+                                 (unless (string=? codeset normalized)
+                                   (symlink base
+                                            (string-append (dirname directory)
+                                                           "/" name "."
+                                                           normalized)))))
+                             locales)
+                   #t)))
              (delete 'install)
              (delete 'move-static-libs)))
          ((#:configure-flags flags)
diff --git a/gnu/packages/benchmark.scm b/gnu/packages/benchmark.scm
index 805cf3256c..970df735aa 100644
--- a/gnu/packages/benchmark.scm
+++ b/gnu/packages/benchmark.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2016, 2017 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2017 Dave Love <fx@gnu.org>
-;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2019 Eric Bavier <bavier@member.fsf.org>
 ;;;
@@ -38,14 +38,14 @@
 (define-public fio
   (package
     (name "fio")
-    (version "3.13")
+    (version "3.14")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://brick.kernel.dk/snaps/"
                                   "fio-" version ".tar.bz2"))
               (sha256
                (base32
-                "0ddj7zm04jqlna3w61qyp4qvwnv0r2lc1hzpwrgbvv4fq581w7d2"))))
+                "047y53nyhnmnxcrsfbsf0gcpxw7bli3n19ycscpxy9974j0fck0v"))))
     (build-system gnu-build-system)
     (arguments
      '(#:test-target "test"
diff --git a/gnu/packages/bioconductor.scm b/gnu/packages/bioconductor.scm
index 3810749f83..e87907fac5 100644
--- a/gnu/packages/bioconductor.scm
+++ b/gnu/packages/bioconductor.scm
@@ -590,6 +590,35 @@ data.  It is derived from the UCSC hg19 genome and based on the \"knownGene\"
 track.  The database is exposed as a @code{TxDb} object.")
     (license license:artistic2.0)))
 
+(define-public r-txdb-hsapiens-ucsc-hg38-knowngene
+  (package
+    (name "r-txdb-hsapiens-ucsc-hg38-knowngene")
+    (version "3.4.6")
+    (source (origin
+              (method url-fetch)
+              ;; We cannot use bioconductor-uri here because this tarball is
+              ;; located under "data/annotation/" instead of "bioc/".
+              (uri (string-append "https://bioconductor.org/packages/"
+                                  "release/data/annotation/src/contrib"
+                                  "/TxDb.Hsapiens.UCSC.hg38.knownGene_"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "12j7rri9r129v9w1yiqadg952dx462dh092sxif3r5kk8l7bxkn9"))))
+    (properties
+     `((upstream-name . "TxDb.Hsapiens.UCSC.hg38.knownGene")))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-genomicfeatures" ,r-genomicfeatures)))
+    (home-page
+     "https://bioconductor.org/packages/TxDb.Hsapiens.UCSC.hg38.knownGene/")
+    (synopsis "Annotation package for human genome in TxDb format")
+    (description
+     "This package provides an annotation database of Homo sapiens genome
+data.  It is derived from the UCSC hg38 genome and based on the \"knownGene\"
+track.  The database is exposed as a @code{TxDb} object.")
+    (license license:artistic2.0)))
+
 (define-public r-txdb-mmusculus-ucsc-mm9-knowngene
   (package
     (name "r-txdb-mmusculus-ucsc-mm9-knowngene")
@@ -1153,14 +1182,14 @@ determining dependencies between variables, code improvement suggestions.")
 (define-public r-chippeakanno
   (package
     (name "r-chippeakanno")
-    (version "3.18.0")
+    (version "3.18.1")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "ChIPpeakAnno" version))
        (sha256
         (base32
-         "089v16mm5m0rlyyyd0d6rz8gwb852zf3bcdrrw70wanlfjn258q7"))))
+         "1mwi5s600c3jxy8f1azfrndc3g06qvhbmrp9wqac9nwjbfx1kfji"))))
     (properties `((upstream-name . "ChIPpeakAnno")))
     (build-system r-build-system)
     (propagated-inputs
@@ -2086,14 +2115,14 @@ independent of the p-value under the null hypothesis.")
 (define-public r-icobra
   (package
     (name "r-icobra")
-    (version "1.12.0")
+    (version "1.12.1")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "iCOBRA" version))
        (sha256
         (base32
-         "1w9frnczgypzc2czbwrvlizqcqhbp6cdpyws7vkmnn9k0ggzxvfc"))))
+         "1wj0vqyb6h4rddmn4va3182yap9bv4m1r1jlzyjfyrqxhl2sqb1q"))))
     (properties `((upstream-name . "iCOBRA")))
     (build-system r-build-system)
     (propagated-inputs
@@ -2886,14 +2915,14 @@ to multiple hypothesis correction.")
 (define-public r-dose
   (package
     (name "r-dose")
-    (version "3.10.0")
+    (version "3.10.1")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "DOSE" version))
        (sha256
         (base32
-         "0dvhnfhzhhzcxm8zhdwrkif7sak4p888sjqfd3a0p77h0hs6g8pv"))))
+         "0ab7mgj42fg6608qkciyqivr1n8s8r5ibvp0z3jfclrnyx6cl0w1"))))
     (properties `((upstream-name . "DOSE")))
     (build-system r-build-system)
     (propagated-inputs
@@ -3408,14 +3437,14 @@ position-specific scores within R and Bioconductor.")
 (define-public r-atacseqqc
   (package
     (name "r-atacseqqc")
-    (version "1.8.0")
+    (version "1.8.1")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "ATACseqQC" version))
        (sha256
         (base32
-         "03f130vcd6hd3fv2pg60id0ddd6qkwsyx73gm907xaayf42ar2pj"))))
+         "0h5j3724hnd86w22vy3whqx6gkf0nf2dxd2clgzdvjzblbcd5s69"))))
     (properties `((upstream-name . "ATACseqQC")))
     (build-system r-build-system)
     (propagated-inputs
@@ -3621,14 +3650,14 @@ investigation using RNA-seq data.")
 (define-public r-aucell
   (package
     (name "r-aucell")
-    (version "1.6.0")
+    (version "1.6.1")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "AUCell" version))
        (sha256
         (base32
-         "025q1as9pifbxa7hidlz634q6d7l73zx8mqy4rjbfrk7d5615xvm"))))
+         "1vd8w6dygn1b5bwlha09mm6fbwyj07pmawpv53agcg1y7jlxs31b"))))
     (properties `((upstream-name . "AUCell")))
     (build-system r-build-system)
     (propagated-inputs
@@ -4438,14 +4467,14 @@ interpretation.")
 (define-public r-rhisat2
   (package
     (name "r-rhisat2")
-    (version "1.0.1")
+    (version "1.0.2")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "Rhisat2" version))
        (sha256
         (base32
-         "01jhj5vvfl4n2d0nl3nd1iw9nii85mgw2adnrmxb8wwlxgy240vr"))))
+         "1y3zqvk1vbcb10r1myh6f5yzjvf7bhwhpiq78bs1k6spli4bzj0q"))))
     (properties `((upstream-name . "Rhisat2")))
     (build-system r-build-system)
     (native-inputs
@@ -4548,3 +4577,171 @@ high-throughput sequencing data.  It performs parallel processing of entire
 files and produces a report which contains a set of high-resolution
 graphics.")
     (license license:gpl2+)))
+
+(define-public r-birewire
+  (package
+    (name "r-birewire")
+    (version "3.16.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (bioconductor-uri "BiRewire" version))
+       (sha256
+        (base32
+         "1gjb18l3gq3w8zl6r5d49hw0r1kfh9f7ghv9hz6y86aniprvb518"))))
+    (properties `((upstream-name . "BiRewire")))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-igraph" ,r-igraph)
+       ("r-matrix" ,r-matrix)
+       ("r-slam" ,r-slam)
+       ("r-tsne" ,r-tsne)))
+    (home-page "https://bioconductor.org/packages/release/bioc/html/BiRewire.html")
+    (synopsis "Tools for randomization of bipartite graphs")
+    (description
+     "This package provides functions for bipartite network rewiring through N
+consecutive switching steps and for the computation of the minimal number of
+switching steps to be performed in order to maximise the dissimilarity with
+respect to the original network.  It includes functions for the analysis of
+the introduced randomness across the switching steps and several other
+routines to analyse the resulting networks and their natural projections.")
+    (license license:gpl3)))
+
+(define-public r-birta
+  (package
+    (name "r-birta")
+    (version "1.28.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (bioconductor-uri "birta" version))
+       (sha256
+        (base32
+         "12xjyvgmh4h0b7hi4qg50kcpb9003gnh2xyfgncb8l9mzvsbkxc2"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-biobase" ,r-biobase)
+       ("r-limma" ,r-limma)
+       ("r-mass" ,r-mass)))
+    (home-page "https://bioconductor.org/packages/birta")
+    (synopsis "Bayesian inference of regulation of transcriptional activity")
+    (description
+     "Expression levels of mRNA molecules are regulated by different
+processes, comprising inhibition or activation by transcription factors and
+post-transcriptional degradation by microRNAs.  @dfn{birta} (Bayesian
+Inference of Regulation of Transcriptional Activity) uses the regulatory
+networks of transcription factors and miRNAs together with mRNA and miRNA
+expression data to predict switches in regulatory activity between two
+conditions.  A Bayesian network is used to model the regulatory structure and
+Markov-Chain-Monte-Carlo is applied to sample the activity states.")
+    (license license:gpl2+)))
+
+(define-public r-ropls
+  (package
+    (name "r-ropls")
+    (version "1.16.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (bioconductor-uri "ropls" version))
+       (sha256
+        (base32
+         "099nv9dgmw3avkxv7cd27r16yj56svjlp5q4i389yp1n0r5zhyl2"))))
+    (build-system r-build-system)
+    (propagated-inputs `(("r-biobase" ,r-biobase)))
+    (native-inputs
+     `(("r-knitr" ,r-knitr))) ; for vignettes
+    (home-page "https://dx.doi.org/10.1021/acs.jproteome.5b00354")
+    (synopsis "Multivariate analysis and feature selection of omics data")
+    (description
+     "Latent variable modeling with @dfn{Principal Component Analysis} (PCA)
+and @dfn{Partial Least Squares} (PLS) are powerful methods for visualization,
+regression, classification, and feature selection of omics data where the
+number of variables exceeds the number of samples and with multicollinearity
+among variables.  @dfn{Orthogonal Partial Least Squares} (OPLS) enables to
+separately model the variation correlated (predictive) to the factor of
+interest and the uncorrelated (orthogonal) variation.  While performing
+similarly to PLS, OPLS facilitates interpretation.
+
+This package provides imlementations of PCA, PLS, and OPLS for multivariate
+analysis and feature selection of omics data.  In addition to scores, loadings
+and weights plots, the package provides metrics and graphics to determine the
+optimal number of components (e.g. with the R2 and Q2 coefficients), check the
+validity of the model by permutation testing, detect outliers, and perform
+feature selection (e.g. with Variable Importance in Projection or regression
+coefficients).")
+    (license license:cecill)))
+
+(define-public r-biosigner
+  (package
+    (name "r-biosigner")
+    (version "1.12.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (bioconductor-uri "biosigner" version))
+       (sha256
+        (base32
+         "1643iya40v6whb7lw7y34w5sanbasvj4yhvcygbip667yhphyv5b"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-biobase" ,r-biobase)
+       ("r-e1071" ,r-e1071)
+       ("r-randomforest" ,r-randomforest)
+       ("r-ropls" ,r-ropls)))
+    (native-inputs
+     `(("r-knitr" ,r-knitr)
+       ("r-rmarkdown" ,r-rmarkdown)
+       ("pandoc" ,ghc-pandoc)
+       ("pandoc-citeproc" ,ghc-pandoc-citeproc))) ; all for vignettes
+    (home-page "https://bioconductor.org/packages/biosigner/")
+    (synopsis "Signature discovery from omics data")
+    (description
+     "Feature selection is critical in omics data analysis to extract
+restricted and meaningful molecular signatures from complex and high-dimension
+data, and to build robust classifiers.  This package implements a method to
+assess the relevance of the variables for the prediction performances of the
+classifier.  The approach can be run in parallel with the PLS-DA, Random
+Forest, and SVM binary classifiers.  The signatures and the corresponding
+'restricted' models are returned, enabling future predictions on new
+datasets.")
+    (license license:cecill)))
+
+(define-public r-annotatr
+  (package
+    (name "r-annotatr")
+    (version "1.10.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (bioconductor-uri "annotatr" version))
+       (sha256
+        (base32
+         "1zlhy6swfgqjhhcqn8c6akxd4c4z8p85swfh095imji7hxnlhh1f"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-annotationdbi" ,r-annotationdbi)
+       ("r-annotationhub" ,r-annotationhub)
+       ("r-dplyr" ,r-dplyr)
+       ("r-genomeinfodb" ,r-genomeinfodb)
+       ("r-genomicfeatures" ,r-genomicfeatures)
+       ("r-genomicranges" ,r-genomicranges)
+       ("r-ggplot2" ,r-ggplot2)
+       ("r-iranges" ,r-iranges)
+       ("r-readr" ,r-readr)
+       ("r-regioner" ,r-regioner)
+       ("r-reshape2" ,r-reshape2)
+       ("r-rtracklayer" ,r-rtracklayer)
+       ("r-s4vectors" ,r-s4vectors)))
+    (home-page "https://bioconductor.org/packages/annotatr/")
+    (synopsis "Annotation of genomic regions to genomic annotations")
+    (description
+     "Given a set of genomic sites/regions (e.g. ChIP-seq peaks, CpGs,
+differentially methylated CpGs or regions, SNPs, etc.) it is often of interest
+to investigate the intersecting genomic annotations.  Such annotations include
+those relating to gene models (promoters, 5'UTRs, exons, introns, and 3'UTRs),
+CpGs (CpG islands, CpG shores, CpG shelves), or regulatory sequences such as
+enhancers.  The annotatr package provides an easy way to summarize and
+visualize the intersection of genomic sites/regions with genomic
+annotations.")
+    (license license:gpl3)))
diff --git a/gnu/packages/bioinformatics.scm b/gnu/packages/bioinformatics.scm
index 8aba7f1c5f..8dbcd5dd33 100644
--- a/gnu/packages/bioinformatics.scm
+++ b/gnu/packages/bioinformatics.scm
@@ -7245,18 +7245,19 @@ Bioconductor, CRAN, and Github.")
 (define-public r-biocviews
   (package
     (name "r-biocviews")
-    (version "1.52.0")
+    (version "1.52.2")
     (source (origin
               (method url-fetch)
               (uri (bioconductor-uri "biocViews" version))
               (sha256
                (base32
-                "1wc7a953n6qrlh9azzg1q68rk99h3xkbs82wq0yk6h2vb2c5r3zk"))))
+                "0qwrsd9fcpkv7hhzy1scnj7ahdxi6cjary28kqk6b36gkzmnrw4r"))))
     (properties
      `((upstream-name . "biocViews")))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-biobase" ,r-biobase)
+       ("r-biocmanager" ,r-biocmanager)
        ("r-graph" ,r-graph)
        ("r-rbgl" ,r-rbgl)
        ("r-rcurl" ,r-rcurl)
@@ -7372,13 +7373,13 @@ S4Vectors package itself.")
 (define-public r-iranges
   (package
     (name "r-iranges")
-    (version "2.18.0")
+    (version "2.18.1")
     (source (origin
               (method url-fetch)
               (uri (bioconductor-uri "IRanges" version))
               (sha256
                (base32
-                "0g06y6xlm2q7p7g7phfc8qj14pqpgbb0mkyjzkfgsrwjmzvpwy6m"))))
+                "1d64sh43pfc9vj2l7y7x6sb44l67wlnn3dzygp7ws0smn06mardq"))))
     (properties
      `((upstream-name . "IRanges")))
     (build-system r-build-system)
@@ -7452,13 +7453,13 @@ names in their natural, rather than lexicographic, order.")
 (define-public r-edger
   (package
     (name "r-edger")
-    (version "3.26.3")
+    (version "3.26.4")
     (source (origin
               (method url-fetch)
               (uri (bioconductor-uri "edgeR" version))
               (sha256
                (base32
-                "12889lwcray2cw0skzy1xp1y3siiz6n5cwx8ni86m7r671p6zmb2"))))
+                "013glavk6a1wpyq3q35k343bdp6rf27w30q59i4kf47rp3i37g15"))))
     (properties `((upstream-name . "edgeR")))
     (build-system r-build-system)
     (propagated-inputs
@@ -7480,13 +7481,13 @@ CAGE.")
 (define-public r-variantannotation
   (package
     (name "r-variantannotation")
-    (version "1.30.0")
+    (version "1.30.1")
     (source (origin
               (method url-fetch)
               (uri (bioconductor-uri "VariantAnnotation" version))
               (sha256
                (base32
-                "1sd01yv1hnwc16412ilncrrph4gxsr9ds0nqg1czl69fqaixjn1i"))))
+                "144x3d3b9a3q5jy4aqrk1nf2yavwjhwlf71s7qyr4x3ms3wmvf8i"))))
     (properties
      `((upstream-name . "VariantAnnotation")))
     (inputs
@@ -7924,13 +7925,13 @@ as well as query and modify the browser state, such as the current viewport.")
 (define-public r-genomicfeatures
   (package
     (name "r-genomicfeatures")
-    (version "1.36.0")
+    (version "1.36.1")
     (source (origin
               (method url-fetch)
               (uri (bioconductor-uri "GenomicFeatures" version))
               (sha256
                (base32
-                "17jy7lrpdaafd8g5v6j70xsypi0lqljdqmhv9f2r1xpyg3yjd84p"))))
+                "02psq3jfgghdydwbydb1j792lvfg44l5npb44mx8d54ckr8658dd"))))
     (properties
      `((upstream-name . "GenomicFeatures")))
     (build-system r-build-system)
@@ -9040,14 +9041,14 @@ TAB-Seq.")
 (define-public r-sva
   (package
     (name "r-sva")
-    (version "3.32.0")
+    (version "3.32.1")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "sva" version))
        (sha256
         (base32
-         "100jwi43y4xdqb5lldx1ld58jg9icdjgz6c7ylx95gspipnkbgjp"))))
+         "0jj6klfha5v5qmx2sjblf1an6s2zqd7mmgsp7sfmh4k2jpqi3jm9"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-genefilter" ,r-genefilter)
@@ -9369,14 +9370,14 @@ structure (pcaRes) to provide a common interface to the PCA results.")
 (define-public r-msnbase
   (package
     (name "r-msnbase")
-    (version "2.10.0")
+    (version "2.10.1")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "MSnbase" version))
        (sha256
         (base32
-         "1lqdlyvs2c9g55zf8gnw142ps4jid644fhfvclnax7sjjwrqdjzv"))))
+         "0z63yqazkycq0zbbarq9ida6al35hv3g7g9g7s7bss4gh0hk7lhd"))))
     (properties `((upstream-name . "MSnbase")))
     (build-system r-build-system)
     (propagated-inputs
@@ -10568,13 +10569,13 @@ libraries.")
 (define-public r-scater
   (package
     (name "r-scater")
-    (version "1.12.1")
+    (version "1.12.2")
     (source (origin
               (method url-fetch)
               (uri (bioconductor-uri "scater" version))
               (sha256
                (base32
-                "0k4jc0xc2n49saylcjrg7laxq4mchg4nv06nrbc6cp4vzpf33jh5"))))
+                "16a17161xlhh6qpna9qxph3anlc7ydgyrczmy4alfiw8si7pzmxa"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-beachmat" ,r-beachmat)
@@ -10603,14 +10604,14 @@ quality control.")
 (define-public r-scran
   (package
     (name "r-scran")
-    (version "1.12.0")
+    (version "1.12.1")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "scran" version))
        (sha256
         (base32
-         "19cyjjzgmhswni6js4bhbj5djp976sl9n648kk7viazgkspql884"))))
+         "17mknpkvs7mgnlbf2hv9k7rwbx2vlg60yrwfyb8nn3nxsb6vm7yn"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-beachmat" ,r-beachmat)
@@ -12535,15 +12536,15 @@ once.  This package provides tools to perform Drop-seq analyses.")
 (define-public pigx-rnaseq
   (package
     (name "pigx-rnaseq")
-    (version "0.0.5")
+    (version "0.0.6")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/BIMSBbioinfo/pigx_rnaseq/"
-                                  "releases/download/v" version
+                                  "releases/download/v." version
                                   "/pigx_rnaseq-" version ".tar.gz"))
               (sha256
                (base32
-                "05gn658zpj9xki5dbs728z9zxq1mcm25hkwr5vzwqxsfi15l5f2l"))))
+                "1w7cwbbz1sbvbyqh5c60iqcjfs3qsppmdgxqa1i0w5wwb9mkh27m"))))
     (build-system gnu-build-system)
     (arguments
      `(#:parallel-tests? #f             ; not supported
@@ -12566,7 +12567,6 @@ once.  This package provides tools to perform Drop-seq analyses.")
        ("trim-galore" ,trim-galore)
        ("htseq" ,htseq)
        ("samtools" ,samtools)
-       ("bedtools" ,bedtools)
        ("r-minimal" ,r-minimal)
        ("r-rmarkdown" ,r-rmarkdown)
        ("r-ggplot2" ,r-ggplot2)
@@ -12603,7 +12603,7 @@ expression report comparing samples in an easily configurable manner.")
 (define-public pigx-chipseq
   (package
     (name "pigx-chipseq")
-    (version "0.0.40")
+    (version "0.0.41")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/BIMSBbioinfo/pigx_chipseq/"
@@ -12611,7 +12611,7 @@ expression report comparing samples in an easily configurable manner.")
                                   "/pigx_chipseq-" version ".tar.gz"))
               (sha256
                (base32
-                "0y9x62cfwzhsp82imnawyamxp58bcb00yjxdy44spylqnjdlsaj8"))))
+                "0akbxdmsjsq5fzbwaap04hqjpsfgv1l6yrc2pwgbya1xgqvcq6vy"))))
     (build-system gnu-build-system)
     ;; parts of the tests rely on access to the network
     (arguments '(#:tests? #f))
@@ -14754,3 +14754,34 @@ ATAC-seq results.  It was written to make it easier to spot differences that
 might be caused by ATAC-seq library prep or sequencing.  The main program,
 @code{ataqv}, examines aligned reads and reports some basic metrics.")
     (license license:gpl3+)))
+
+(define-public r-psiplot
+  (package
+    (name "r-psiplot")
+    (version "2.3.0")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/kcha/psiplot.git")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "08438h16cfry5kqh3y9hs8q1b1a8bxhblsm75knviz5r6q0n1jxh"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-mass" ,r-mass)
+       ("r-dplyr" ,r-dplyr)
+       ("r-tidyr" ,r-tidyr)
+       ("r-purrr" ,r-purrr)
+       ("r-readr" ,r-readr)
+       ("r-magrittr" ,r-magrittr)
+       ("r-ggplot2" ,r-ggplot2)))
+    (home-page "https://github.com/kcha/psiplot")
+    (synopsis "Plot percent spliced-in values of alternatively-spliced exons")
+    (description
+     "PSIplot is an R package for generating plots of @dfn{percent
+spliced-in} (PSI) values of alternatively-spliced exons that were computed by
+vast-tools, an RNA-Seq pipeline for alternative splicing analysis.  The plots
+are generated using @code{ggplot2}.")
+    (license license:expat)))
diff --git a/gnu/packages/bootstrap.scm b/gnu/packages/bootstrap.scm
index 16ed15c237..50786d9f21 100644
--- a/gnu/packages/bootstrap.scm
+++ b/gnu/packages/bootstrap.scm
@@ -184,6 +184,7 @@ or false to signal an error."
         ((string=? system "powerpc64le-linux") "/lib/ld64.so.2")
         ((string=? system "alpha-linux") "/lib/ld-linux.so.2")
         ((string=? system "s390x-linux") "/lib/ld64.so.1")
+        ((string=? system "riscv64-linux") "/lib/ld-linux-riscv64-lp64d.so.1")
 
         ;; XXX: This one is used bare-bones, without a libc, so add a case
         ;; here just so we can keep going.
diff --git a/gnu/packages/build-tools.scm b/gnu/packages/build-tools.scm
index 459d691c45..c435e72824 100644
--- a/gnu/packages/build-tools.scm
+++ b/gnu/packages/build-tools.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2017, 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2017 Corentin Bocquillon <corentin@nybble.fr>
-;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2017, 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018 Fis Trivial <ybbs.daans@hotmail.com>
 ;;; Copyright © 2018 Tomáš Čech <sleep_walker@gnu.org>
 ;;; Copyright © 2018 Marius Bakke <mbakke@fastmail.com>
@@ -242,7 +242,7 @@ other lower-level build files.")
 (define-public osc
   (package
     (name "osc")
-    (version "0.165.0")
+    (version "0.165.1")
     (source
      (origin
        (method git-fetch)
@@ -251,8 +251,7 @@ other lower-level build files.")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
-        (base32
-         "0l6iw8a040l60ixxdms9rxajm38vqfdwgij2bm7ahgv1akza64jk"))))
+        (base32 "16p4z34ziy4z2w7mfpclk13x1w2p69wivkdwp0224x18r2fwj67v"))))
     (build-system python-build-system)
     (arguments
      `(#:phases
@@ -269,7 +268,7 @@ other lower-level build files.")
     (inputs
      `(("python-m2crypto" ,python-m2crypto)
        ("python-pycurl" ,python-pycurl)
-       ("rpm" ,rpm))) ; for python-rpm
+       ("rpm" ,rpm)))                   ; for python-rpm
     (home-page "https://github.com/openSUSE/osc")
     (synopsis "Open Build Service command line tool")
     (description "@command{osc} is a command line interface to the Open Build
diff --git a/gnu/packages/busybox.scm b/gnu/packages/busybox.scm
index 20a2e5aabf..cc6257ba35 100644
--- a/gnu/packages/busybox.scm
+++ b/gnu/packages/busybox.scm
@@ -108,7 +108,7 @@ any small or embedded system.")
 (define-public toybox
   (package
     (name "toybox")
-    (version "0.8.0")
+    (version "0.8.1")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -116,7 +116,7 @@ any small or embedded system.")
                     version ".tar.gz"))
               (sha256
                (base32
-                "0mirj977zxsxnfaiqndwgsn9calgg312d817fi1hkfbd8kcyrk73"))))
+                "1czxzvyggm157z8wgxbk8k0n675p1gig9xvrcijsplh9p1i1xi0s"))))
     (build-system gnu-build-system)
     (arguments
      '(#:phases
diff --git a/gnu/packages/chromium.scm b/gnu/packages/chromium.scm
index 005b21ad7b..dce992a0c5 100644
--- a/gnu/packages/chromium.scm
+++ b/gnu/packages/chromium.scm
@@ -98,6 +98,7 @@
     "third_party/angle/third_party/vulkan-tools" ;ASL2.0
     "third_party/angle/third_party/vulkan-validation-layers" ;ASL2.0
     "third_party/apple_apsl" ;APSL2.0
+    "third_party/axe-core" ;MPL2.0
     "third_party/blink" ;BSD-3, LGPL2+
     "third_party/boringssl" ;OpenSSL/ISC (Google additions are ISC)
     "third_party/boringssl/src/third_party/fiat" ;Expat
@@ -117,13 +118,14 @@
     "third_party/ced" ;BSD-3
     "third_party/cld_3" ;ASL2.0
     "third_party/crashpad" ;ASL2.0
+    "third_party/crashpad/crashpad/third_party/lss" ;ASL2.0
     "third_party/crashpad/crashpad/third_party/zlib/zlib_crashpad.h" ;Zlib
     "third_party/crc32c" ;BSD-3
     "third_party/cros_system_api" ;BSD-3
     "third_party/dav1d" ;BSD-2
+    "third_party/dawn" ;ASL2.0
     "third_party/dom_distiller_js" ;BSD-3
     "third_party/emoji-segmenter" ;ASL2.0
-    "third_party/fips181" ;BSD-3
     "third_party/flatbuffers" ;ASL2.0
     "third_party/glslang" ;BSD-3, Expat, ASL2.0
     "third_party/google_input_tools" ;ASL2.0
@@ -166,6 +168,7 @@
     "third_party/pdfium/third_party/bigint" ;Public domain, BSD-3
     "third_party/pdfium/third_party/skia_shared" ;BSD-3
     "third_party/pdfium/third_party/freetype/include/pstables.h" ;FreeType
+    "third_party/pffft" ;the "FFTPACK" license, similar to BSD-3
     "third_party/ply" ;BSD-3
     "third_party/polymer" ;BSD-3
     "third_party/protobuf" ;BSD-3
@@ -223,54 +226,58 @@ from forcing GEXP-PROMISE."
                       #:system system
                       #:guile-for-build guile)))
 
-(define %chromium-version "74.0.3729.169")
-(define %ungoogled-revision "d2beaeff47a6e97b8909163147ad6b4058238f36")
-(define %debian-revision "debian/74.0.3729.108-1")
+(define %chromium-version "75.0.3770.80")
+(define %ungoogled-revision "5d8abc38b43a62f379615a0dc972b29d9aebb4b4")
+(define %debian-revision "debian/75.0.3770.80-1")
 (define package-revision "0")
-
 (define %package-version (string-append %chromium-version "-"
                                         package-revision "."
                                         (string-take %ungoogled-revision 7)))
 
+(define %chromium-origin
+  (origin
+    (method url-fetch)
+    (uri (string-append "https://commondatastorage.googleapis.com"
+                        "/chromium-browser-official/chromium-"
+                        %chromium-version ".tar.xz"))
+    (sha256
+     (base32
+      "1mk6gb3iif8i6zq41wjn3lhqqlqp1syzpav1nj0170l7v348p0ns"))))
+
+(define %ungoogled-origin
+  (origin
+    (method git-fetch)
+    (uri (git-reference (url "https://github.com/Eloston/ungoogled-chromium")
+                        (commit %ungoogled-revision)))
+    (file-name (git-file-name "ungoogled-chromium"
+                              (string-take %ungoogled-revision 7)))
+    (sha256
+     (base32
+      "1vk8jzzsn20ysn4nlz84mwwhfa9nnywzd1lrahlhcky9pf6xzpwa"))))
+
+(define %debian-origin
+  (origin
+    (method git-fetch)
+    (uri (git-reference
+          (url "https://salsa.debian.org/chromium-team/chromium.git")
+          (commit %debian-revision)))
+    (file-name (git-file-name "debian-chromium-packaging"
+                              (if (string-prefix? "debian/" %debian-revision)
+                                  (cadr (string-split %debian-revision #\/))
+                                  (string-take %debian-revision 7))))
+    (sha256
+     (base32
+      "16z4bncc2q1d5bymywq8291bzkcvba447ql3vsq20rwcdjckyimx"))))
+
 ;; This is a "computed" origin that does the following:
 ;; *) Runs the Ungoogled scripts on a pristine Chromium tarball.
 ;; *) Applies Debians Chromium patches, for their unbundling and GCC work.
 ;; *) Prunes all third_party directories that are not explicitly preserved.
 ;; *) Adjusts "GN" build files such that system libraries are preferred.
 (define ungoogled-chromium-source
-  (let ((chromium-source
-         (origin
-           (method url-fetch)
-           (uri (string-append "https://commondatastorage.googleapis.com"
-                               "/chromium-browser-official/chromium-"
-                               %chromium-version ".tar.xz"))
-           (sha256
-            (base32
-             "1d0c3asfhqh6wlzngajcl0v2wn573m1jd1zqci9bcm3z048043q7"))))
-        (ungoogled-source
-         (origin
-           (method git-fetch)
-           (uri (git-reference (url "https://github.com/Eloston/ungoogled-chromium")
-                               (commit %ungoogled-revision)))
-           (file-name (git-file-name "ungoogled-chromium"
-                                     (string-take %ungoogled-revision 7)))
-           (sha256
-            (base32
-             "04schaaqhnkrgh0p1p0wyjd5aybpxmj3kfnyipwy5nh7d39afymc"))))
-        (debian-source
-         (origin
-           (method git-fetch)
-           (uri (git-reference
-                 (url "https://salsa.debian.org/chromium-team/chromium.git")
-                 (commit %debian-revision)))
-           (file-name (git-file-name "debian-chromium-packaging"
-                                     (if (string-prefix? "debian/" %debian-revision)
-                                         (cadr (string-split %debian-revision #\/))
-                                         (string-take %debian-revision 7))))
-           (sha256
-            (base32
-             "1bn0c86sxkkxgdz0i88y0zh4zr39l6379r2rhgk3b3qbvwz25s3j")))))
-
+  (let ((chromium-source %chromium-origin)
+        (ungoogled-source %ungoogled-origin)
+        (debian-source %debian-origin))
     (origin
       (method computed-origin-method)
       (file-name (string-append "ungoogled-chromium-" %package-version ".tar.xz"))
@@ -335,7 +342,6 @@ from forcing GEXP-PROMISE."
                                (when (and (> (string-length line) 1)
                                           ;; Skip the Debian-specific ones.
                                           (not (string-prefix? "debianization/" line))
-                                          (not (string-prefix? "gcc6/" line))
                                           ;; And those that conflict with Ungoogled.
                                           (not (any (cute string-suffix? <> line)
                                                     '("widevine-buildflag.patch"
@@ -434,6 +440,7 @@ from forcing GEXP-PROMISE."
              "enable_reporting=false"
              "enable_service_discovery=false"
              "enable_swiftshader=false"
+             "enable_vr=false"
              "enable_widevine=false"
              ;; Disable type-checking for the Web UI to avoid a Java dependency.
              "closure_compile=false"
diff --git a/gnu/packages/compression.scm b/gnu/packages/compression.scm
index 8db1136be0..2b18629cca 100644
--- a/gnu/packages/compression.scm
+++ b/gnu/packages/compression.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2017 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2017, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2014, 2015, 2018 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2015 Taylan Ulrich Bayırlı/Kammer <taylanbayirli@gmail.com>
@@ -128,7 +128,16 @@ in compression.")
      `(#:phases
        (modify-phases %standard-phases
          (add-after 'unpack 'enter-source
-           (lambda _ (chdir "contrib/minizip") #t)))))
+           (lambda _ (chdir "contrib/minizip") #t))
+         (add-after 'install 'remove-crypt-h
+           (lambda* (#:key outputs #:allow-other-keys)
+             ;; Remove <minizip/crypt.h> because it interferes with libc's
+             ;; <crypt.h> given that 'minizip.pc' says "-I…/include/minizip".
+             ;; Fedora does the same:
+             ;; <https://src.fedoraproject.org/rpms/zlib/c/4d2785ec3116947872f6f32dc4104e6d36d8a7a4?branch=master>.
+             (let ((out (assoc-ref outputs "out")))
+               (delete-file (string-append out "/include/minizip/crypt.h"))
+               #t))))))
     (native-inputs
      `(("autoconf" ,autoconf)
        ("automake" ,automake)
diff --git a/gnu/packages/coq.scm b/gnu/packages/coq.scm
index 6c48af4fc9..fd69c44c22 100644
--- a/gnu/packages/coq.scm
+++ b/gnu/packages/coq.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2018 Julien Lepiller <julien@lepiller.eu>
-;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2019 Dan Frumin <dfrumin@cs.ru.nl>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -43,7 +43,7 @@
 (define-public coq
   (package
     (name "coq")
-    (version "8.9.0")
+    (version "8.9.1")
     (source
      (origin
        (method git-fetch)
@@ -52,7 +52,7 @@
              (commit (string-append "V" version))))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "01ad7az6f95w16xya7979lk32agy22lf4bqgqf5qpnarpkpxhbw8"))))
+        (base32 "1p4z967s18wkblayv12ygqsrqlyk5ax1pz40yf4kag8pva6gblhk"))))
     (native-search-paths
      (list (search-path-specification
             (variable "COQPATH")
@@ -499,7 +499,7 @@ uses Ltac to synthesize the substitution operation.")
 (define-public coq-equations
   (package
     (name "coq-equations")
-    (version "1.2-beta2")
+    (version "1.2")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -508,7 +508,7 @@ uses Ltac to synthesize the substitution operation.")
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "0y2zwv7jxs1crprj5qvg46h0v9wyfn99ln40yskq91y9h1lj5h3j"))))
+                "1q3wvicr43bgy7xn1diwh4j43mnrhprrc2xd22qlbz9cl6bhf8bj"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("ocaml"  ,ocaml)
diff --git a/gnu/packages/cpp.scm b/gnu/packages/cpp.scm
index 9c060c70da..9e95bacd65 100644
--- a/gnu/packages/cpp.scm
+++ b/gnu/packages/cpp.scm
@@ -108,17 +108,19 @@ operating system functions.")
   (package
     (name "dashel")
     (version "1.3.3")
-    (home-page "https://github.com/aseba-community/dashel")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append home-page "/archive/" version ".tar.gz"))
-              (sha256
-               (base32
-                "1ckzac1rsw3cxmpdpwcqv46jyp7risk5ybq6jjiizbqn7labf6dw"))
-              (file-name (string-append name "-" version ".tar.gz"))))
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/aseba-community/dashel.git")
+             (commit version)))
+       (sha256
+        (base32 "0anks2l2i2qp0wlzqck1qgpq15a3l6dg8lw2h8s4nsj7f61lffwy"))
+       (file-name (git-file-name name version))))
     (build-system cmake-build-system)
-    (arguments '(#:tests? #f))                    ;no tests
+    (arguments '(#:tests? #f))          ; no tests
     (native-inputs `(("pkg-config" ,pkg-config)))
+    (home-page "https://github.com/aseba-community/dashel")
     (synopsis "Data stream helper encapsulation library")
     (description
      "Dashel is a data stream helper encapsulation C++ library.  It provides a
@@ -130,22 +132,23 @@ combination of these streams.")
 (define-public xsimd
   (package
     (name "xsimd")
-    (version "4.1.2")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append
-                    "https://github.com/QuantStack/xsimd/archive/"
-                    version ".tar.gz"))
-              (sha256
-               (base32
-                "0x05l4xpqr9b66sm6lkf48n6x7999ks921x6k2hzkkg6mh3gqd46"))
-              (file-name (string-append name "-" version ".tar.gz"))))
-    (home-page "https://github.com/QuantStack/xsimd")
+    (version "7.2.3")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/QuantStack/xsimd.git")
+             (commit version)))
+       (sha256
+        (base32 "1ny2qin1j4h35mljivh8z52kwdyjxf4yxlzb8j52ji91v2ccc88j"))
+       (file-name (git-file-name name version))))
     (build-system cmake-build-system)
     (arguments
-     `(#:test-target "xtest"))
+     `(#:configure-flags (list "-DBUILD_TESTS=ON")
+       #:test-target "xtest"))
     (native-inputs
      `(("googletest" ,googletest)))
+    (home-page "https://github.com/QuantStack/xsimd")
     (synopsis "C++ wrappers for SIMD intrinsics and math implementations")
     (description "xsimd provides a unified means for using SIMD features for
 library authors.  Namely, it enables manipulation of batches of numbers with
diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index 199dfbdbe4..356595ff33 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -738,6 +738,8 @@ and vice-versa.")
        ("js-strftime" ,js-strftime)
        ("js-highlight" ,js-highlight)
        ("js-es5-shim" ,js-es5-shim)))
+    (native-inputs
+     `(("uglify-js" ,uglify-js)))
     (home-page "http://shiny.rstudio.com")
     (synopsis "Easy interactive web applications with R")
     (description
@@ -983,14 +985,14 @@ coordinates.")
 (define-public r-geosphere
   (package
     (name "r-geosphere")
-    (version "1.5-7")
+    (version "1.5-10")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "geosphere" version))
        (sha256
         (base32
-         "186qdm5niq7v3d4w4rngx71znsgi44hnam7698bsx9ar5mg5b6wx"))))
+         "15xlgsmn0vwky1l13n6acdz6jn2b2na3gf6x367y3qh1f5w4zkan"))))
     (build-system r-build-system)
     (propagated-inputs `(("r-sp" ,r-sp)))
     (home-page "https://cran.r-project.org/web/packages/geosphere")
@@ -2066,14 +2068,14 @@ topics for ecologists (ISBN 978-0-691-12522-0).")
 (define-public r-lpsolve
   (package
     (name "r-lpsolve")
-    (version "5.6.13")
+    (version "5.6.13.1")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "lpSolve" version))
        (sha256
         (base32
-         "13a9ry8xf5j1f2j6imqrxdgxqz3nqp9sj9b4ivyx9sid459irm6m"))))
+         "1f10ywlaaldgjj84vs108ly0nsbkrdgbn5d6qj7nk93j1x1xrn3a"))))
     (properties `((upstream-name . "lpSolve")))
     (build-system r-build-system)
     (home-page "https://cran.r-project.org/web/packages/lpSolve")
@@ -2204,14 +2206,14 @@ George Marsaglia are included.")
 (define-public r-ksamples
   (package
     (name "r-ksamples")
-    (version "1.2-8")
+    (version "1.2-9")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "kSamples" version))
        (sha256
         (base32
-         "15d5q5vpp4wx5rk5kjxjdxpwc8mkq5sbdz8gi07iscrvhzb5rzfr"))))
+         "1zs22p68d6320kcylisnk0b5wmpapxkyz15py09czxzw7npw8gms"))))
     (properties `((upstream-name . "kSamples")))
     (build-system r-build-system)
     (propagated-inputs
@@ -2817,14 +2819,14 @@ color labels, layout, etc.")
 (define-public r-stringdist
   (package
     (name "r-stringdist")
-    (version "0.9.5.1")
+    (version "0.9.5.2")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "stringdist" version))
        (sha256
         (base32
-         "0gap1g9xwhp0zxqsznkc2carpvi80z03prr4q8m528684lznx2xa"))))
+         "0nw8c317qkfq63pr0prl0hx522ddfq4cbgixb5r4pq3fxk9z303l"))))
     (build-system r-build-system)
     (home-page "https://github.com/markvanderloo/stringdist")
     (synopsis "Approximate string matching and string distance functions")
@@ -2892,14 +2894,14 @@ Laplace approximation and adaptive Gauss-Hermite quadrature.")
 (define-public r-jomo
   (package
     (name "r-jomo")
-    (version "2.6-7")
+    (version "2.6-8")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "jomo" version))
        (sha256
         (base32
-         "0lyvi32aikkvwdj0y2hc13kmmi0cw1icg8z9lcw10l8326sxm0vf"))))
+         "097zfdcqc3a45ay8xxbraqh8xsfyivskkdmc2b4ca4n979lx8vyb"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-lme4" ,r-lme4)
@@ -3494,14 +3496,14 @@ timeout.  It can also poll several processes at once.")
 (define-public r-tsp
   (package
     (name "r-tsp")
-    (version "1.1-6")
+    (version "1.1-7")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "TSP" version))
        (sha256
         (base32
-         "1ym97xl2icjpfkrici0wig29w06bb704hp51v7h5liygjlwpkhlc"))))
+         "0rxxhvqi55869dg2p82hzg5kvgcqf9h60cjcg00k3pv9aw4x07kb"))))
     (properties `((upstream-name . "TSP")))
     (build-system r-build-system)
     (propagated-inputs `(("r-foreach" ,r-foreach)))
@@ -3581,14 +3583,14 @@ Markdown documents.")
 (define-public r-seriation
   (package
     (name "r-seriation")
-    (version "1.2-3")
+    (version "1.2-7")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "seriation" version))
        (sha256
         (base32
-         "1q6hw4hjw224b4y0dc0j630v2pgj6sn455nwkilb70w8k31hpk92"))))
+         "0dbz5b5msy4fr2whhphyriqk1xc6305zpjq59rrwxyz3d7rzwpa6"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-cluster" ,r-cluster)
@@ -3713,14 +3715,14 @@ to variables on the left-hand side of the assignment.")
 (define-public r-pillar
   (package
     (name "r-pillar")
-    (version "1.4.0")
+    (version "1.4.1")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "pillar" version))
        (sha256
         (base32
-         "1c8rwwh677vc92f4k6qj4mxl3acran1iqdv5dj6r1dyv7fvmcvfx"))))
+         "0mcc09caxm69pghhz6b8vawj9ni63aijv5qba53pg4ph7rxclwgm"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-cli" ,r-cli)
@@ -3831,14 +3833,14 @@ supports arbitrary vertex/edge/graph attributes.")
 (define-public r-statnet-common
   (package
     (name "r-statnet-common")
-    (version "4.2.0")
+    (version "4.3.0")
     (source
       (origin
         (method url-fetch)
         (uri (cran-uri "statnet.common" version))
         (sha256
           (base32
-            "0q942g6kqmqxfss1cxb3yg8y5r1k1h5cyy99s1cfisrn6hqc6xhi"))))
+            "0ng90i0wm9wlyhjbnmnylc1bbqw396p1dr7f402dyry9x9ck6jl3"))))
     (properties
       `((upstream-name . "statnet.common")))
     (build-system r-build-system)
@@ -4031,14 +4033,14 @@ financial trading strategies.")
 (define-public r-tseries
   (package
     (name "r-tseries")
-    (version "0.10-46")
+    (version "0.10-47")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "tseries" version))
        (sha256
         (base32
-         "08kjw0bfj5gfcrxpblwqxwna8a5g9gnr7ya61qb02r263pyhm50j"))))
+         "0yzvc9djp3angvxdxqi60wi726y76ablsb71q88ycvw0avgpf8r0"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-quadprog" ,r-quadprog)
@@ -4995,14 +4997,14 @@ additional external tools on any platform.")
 (define-public r-openxlsx
   (package
     (name "r-openxlsx")
-    (version "4.1.0")
+    (version "4.1.0.1")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "openxlsx" version))
        (sha256
         (base32
-         "1n7z22pm78xa77fvn77kdn68az6xzxk36y11sqf0w6h6adri4yxb"))))
+         "1lflygpi1z4rlb1c6g6wsmi334maiiy7jhpg6ph4sw8lpvg12w4b"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-rcpp" ,r-rcpp)
@@ -5859,14 +5861,14 @@ intervals.")
 (define-public r-snakecase
   (package
     (name "r-snakecase")
-    (version "0.10.0")
+    (version "0.11.0")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "snakecase" version))
        (sha256
         (base32
-         "0325zkpyqa15lx7biq2cbimr2773332bp4jvcvnl00bjx41ia2fm"))))
+         "1ky1x2cp5rd0ffd9m1fji9sq4z4jsrpxzg30brw8bb4ihfjj114r"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-stringi" ,r-stringi)
@@ -5931,22 +5933,22 @@ information are missing.")
 (define-public r-sjlabelled
   (package
     (name "r-sjlabelled")
-    (version "1.0.17")
+    (version "1.1.0")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "sjlabelled" version))
        (sha256
         (base32
-         "00c0c22ynpihgf2bvmcfnkvqwqvxax2zzb7wldsmg2f7z5a32aa6"))))
+         "0rnmlwpp41h04dzfjd5ncvzjzs43slaimb4v2in1axznv3haafyc"))))
     (build-system r-build-system)
     (propagated-inputs
-     `(("r-dplyr" ,r-dplyr)
-       ("r-haven" ,r-haven)
+     `(("r-haven" ,r-haven)
        ("r-insight" ,r-insight)
        ("r-magrittr" ,r-magrittr)
        ("r-purrr" ,r-purrr)
-       ("r-rlang" ,r-rlang)))
+       ("r-rlang" ,r-rlang)
+       ("r-tidyselect" ,r-tidyselect)))
     (home-page "https://github.com/strengejacke/sjlabelled")
     (synopsis "Labelled data utility functions")
     (description
@@ -6290,14 +6292,14 @@ Group (Non-)Overlap considerations.")
 (define-public r-refgenome
   (package
     (name "r-refgenome")
-    (version "1.7.3.1")
+    (version "1.7.7")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "refGenome" version))
        (sha256
         (base32
-         "1s4lxv5pqk6d0f0a9iclgv88yl346fwvzgraxh0gwpbym1yhh787"))))
+         "1za89bn3am1zgvm641qi1ab6kaqpll4rb9p9f1sjwvcgqq6065g5"))))
     (properties `((upstream-name . "refGenome")))
     (build-system r-build-system)
     (propagated-inputs
@@ -6362,14 +6364,14 @@ containing one or more SNPs that evolved under directional selection.")
 (define-public r-proc
   (package
     (name "r-proc")
-    (version "1.14.0")
+    (version "1.15.0")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "pROC" version))
        (sha256
         (base32
-         "0ki1pvj5iaki81crapvwqllg5avn5qlvv62axnsdkdcmv9xc3wg0"))))
+         "1dxxkwdhxfnj2znq4c5ggrr9m5klh5pmfxg17rz59vr2hfb73m24"))))
     (properties `((upstream-name . "pROC")))
     (build-system r-build-system)
     (propagated-inputs
@@ -7786,14 +7788,14 @@ correlation, censored, ordered and multivariate problems.")
 (define-public r-bayesplot
   (package
     (name "r-bayesplot")
-    (version "1.6.0")
+    (version "1.7.0")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "bayesplot" version))
        (sha256
         (base32
-         "0in9cq2ybpa7njrwqx4l6nc8i01cjswsvzwlyiw465pi74aapr57"))))
+         "0h23sbfny2hcipvvfhq5aiwdh1vanizn7f8lpb9kffypxhcd7v7w"))))
     (build-system r-build-system)
     (inputs
      `(("pandoc" ,ghc-pandoc)
@@ -7802,8 +7804,11 @@ correlation, censored, ordered and multivariate problems.")
      `(("r-dplyr" ,r-dplyr)
        ("r-ggplot2" ,r-ggplot2)
        ("r-ggridges" ,r-ggridges)
+       ("r-glue" ,r-glue)
        ("r-reshape2" ,r-reshape2)
-       ("r-rlang" ,r-rlang)))
+       ("r-rlang" ,r-rlang)
+       ("r-tibble" ,r-tibble)
+       ("r-tidyselect" ,r-tidyselect)))
     (home-page "http://mc-stan.org/bayesplot")
     (synopsis "Plotting for Bayesian models")
     (description
@@ -7845,25 +7850,26 @@ detection, parallelism through BLAS and parallel user templates.")
 (define-public r-sjstats
   (package
     (name "r-sjstats")
-    (version "0.17.4")
+    (version "0.17.5")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "sjstats" version))
        (sha256
         (base32
-         "012hp9m17xzjnsfvjjz2wdfgxm3irsrfx0zmahfnfmgdrwxd5vk5"))))
+         "1x9ybvz84vgaabmqp4z6crbv5q6kqjg6msk1spbr11zx9dbj06ca"))))
     (build-system r-build-system)
     (propagated-inputs
-     `(("r-broom" ,r-broom)
+     `(("r-bayestestr" ,r-bayestestr)
+       ("r-broom" ,r-broom)
        ("r-dplyr" ,r-dplyr)
        ("r-emmeans" ,r-emmeans)
        ("r-insight" ,r-insight)
        ("r-lme4" ,r-lme4)
        ("r-magrittr" ,r-magrittr)
        ("r-mass" ,r-mass)
-       ("r-matrix" ,r-matrix)
        ("r-modelr" ,r-modelr)
+       ("r-performance" ,r-performance)
        ("r-purrr" ,r-purrr)
        ("r-rlang" ,r-rlang)
        ("r-sjlabelled" ,r-sjlabelled)
@@ -7918,14 +7924,14 @@ differentiation.")
 (define-public r-bayestestr
   (package
     (name "r-bayestestr")
-    (version "0.1.0")
+    (version "0.2.0")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "bayestestR" version))
        (sha256
         (base32
-         "1m6gj55z3shm3m3mgqj8nk73wij67y617sl04rbj400wz9qrhfva"))))
+         "0729j4fdxkkvmh99nmny38dywidzgmipdjqbi2ljxygsn4jg7ysy"))))
     (properties `((upstream-name . "bayestestR")))
     (build-system r-build-system)
     (propagated-inputs
@@ -7943,14 +7949,14 @@ ROPE percentage and pd).")
 (define-public r-performance
   (package
     (name "r-performance")
-    (version "0.1.0")
+    (version "0.2.0")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "performance" version))
        (sha256
         (base32
-         "19lfx25hkavzbycrh6hq4v24a0dz4s60ryq6jyihjlxgrb9g7cnw"))))
+         "1pzd6z7i1jxr2xi1shg3d0bxlbpmjl7kpmwgjnfys6syv57znd1z"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-bayestestr" ,r-bayestestr)
@@ -8797,14 +8803,14 @@ isosurfaces.")
 (define-public r-ks
   (package
     (name "r-ks")
-    (version "1.11.4")
+    (version "1.11.5")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "ks" version))
        (sha256
         (base32
-         "0d5i8458s8ri9pcx2jm003z1ajk7ha3pmw1sr6lgn6a8d7wgmvqb"))))
+         "06ymx244yknmpl6935l4pafqbm4gcbpnhqg7rinql6rrfr9mcrag"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-fnn" ,r-fnn)
@@ -9761,14 +9767,14 @@ the combination of non-negative and non-positive constraints.")
 (define-public r-iso
   (package
     (name "r-iso")
-    (version "0.0-17")
+    (version "0.0-18")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "Iso" version))
        (sha256
         (base32
-         "0lljc99sdzdqj6d56qbsggibr6pkdwkh821bj70ianikyvmdc1y0"))))
+         "014mm5b1f7i6nwlz3kyg1biph0y542kcx5bd13p68cv5a928qzid"))))
     (properties `((upstream-name . "Iso")))
     (build-system r-build-system)
     (native-inputs `(("gfortran" ,gfortran)))
@@ -10481,14 +10487,14 @@ Differences with other sparse matrix packages are:
 (define-public r-fields
   (package
     (name "r-fields")
-    (version "9.8-1")
+    (version "9.8-3")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "fields" version))
        (sha256
         (base32
-         "1zb44bm9mwbnld2q915nxxji3hqa025cmlaar7da35lyqlrjl30v"))))
+         "1q9x68dczjym56v7x90x4x5br59vj3dww6w8v42zd3yl17h7c1h1"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-maps" ,r-maps)
@@ -10724,14 +10730,14 @@ But it can also be used to do data analysis for small scale data sets.")
 (define-public r-cmprsk
   (package
     (name "r-cmprsk")
-    (version "2.2-7")
+    (version "2.2-8")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "cmprsk" version))
        (sha256
         (base32
-         "1imr3wpnj4g57n2x4ryahl4lk8lvq9y2r7319zv3k82mznha8bcm"))))
+         "1nacbzx950ygaqgnj0949skhwpzar5i3xlscd44jsimk2gsppx6z"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-survival" ,r-survival)))
@@ -10751,14 +10757,14 @@ JASA, 94:496-509.")
 (define-public r-etm
   (package
     (name "r-etm")
-    (version "1.0.4")
+    (version "1.0.5")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "etm" version))
        (sha256
         (base32
-         "0ws103b3pmli0z4xbyfxkly2wnnnxnnwc0r66qjjqjrlvm7pffl1"))))
+         "1yivbq8y0ijcl1m4nir4q9hp4pi6iphwxgjprygsdf7vp98wq677"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-data-table" ,r-data-table)
@@ -10777,14 +10783,14 @@ model with finite state space using the Aalen-Johansen estimator.")
 (define-public r-epi
   (package
     (name "r-epi")
-    (version "2.35")
+    (version "2.37")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "Epi" version))
        (sha256
         (base32
-         "1z3959761ryv54y6vsrxxvhrwzz50xrxn55pqh5y7lrxh91zdsvl"))))
+         "1lanr9x0c6w22406p56j7cwk6wck8njq6pscb4gzc613d68zj1lk"))))
     (properties `((upstream-name . "Epi")))
     (build-system r-build-system)
     (propagated-inputs
@@ -11020,14 +11026,14 @@ machine or distributed on a compute cluster.")
 (define-public r-rsvd
   (package
     (name "r-rsvd")
-    (version "1.0.0")
+    (version "1.0.1")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "rsvd" version))
        (sha256
         (base32
-         "0vjhrvnkl9rmvl8sv2kac5sd10z3fgxymb676ynxzc2pmhydy3an"))))
+         "1faskhf5j2bj9f971qljsmh182g3rnyilj1wwijz530a6skxidzz"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-matrix" ,r-matrix)))
@@ -11155,14 +11161,14 @@ algorithms) can be computed and partitioned matrices can be plotted.")
 (define-public r-upsetr
   (package
     (name "r-upsetr")
-    (version "1.3.3")
+    (version "1.4.0")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "UpSetR" version))
        (sha256
         (base32
-         "08vj7l92b8fpqyqwxshll2mhk3yhgyr74axvr2lf29z78bapymhz"))))
+         "007i0njnjjy7vbrxabwav7a1kk2n0hn2mkvqsdzzfk10ckp5y7im"))))
     (properties `((upstream-name . "UpSetR")))
     (build-system r-build-system)
     (propagated-inputs
@@ -12895,21 +12901,21 @@ SELECT or UPDATE queries to an end-point.")
 (define-public r-bookdown
   (package
     (name "r-bookdown")
-    (version "0.10")
+    (version "0.11")
     (source (origin
               (method url-fetch)
               (uri (cran-uri "bookdown" version))
               (sha256
                (base32
-                "0xk57p9iyj7rqrwb89q3pm8p29ca615fj1h9blf5yb3zhga4bjk3"))))
+                "0w4fkv5fqiaqgkx44p0s161imf29zir9742126xkz1pl1j25jn1r"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-htmltools" ,r-htmltools)
        ("r-knitr" ,r-knitr)
        ("r-rmarkdown" ,r-rmarkdown)
        ("r-tinytex" ,r-tinytex)
-       ("r-yaml" ,r-yaml)
-       ("r-xfun" ,r-xfun)))
+       ("r-xfun" ,r-xfun)
+       ("pandoc" ,ghc-pandoc)))
     (home-page "https://github.com/rstudio/bookdown")
     (synopsis "Authoring books and technical documents with R markdown")
     (description "This package provides output formats and utilities for
@@ -12941,14 +12947,14 @@ that accept short and long options.")
 (define-public r-wgcna
   (package
     (name "r-wgcna")
-    (version "1.67")
+    (version "1.68")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "WGCNA" version))
        (sha256
         (base32
-         "09387w85lxvwr8ax2i2h602b4dgfv4wbvsl9aj1q0b1vfs4rkk69"))))
+         "1s7gy5vd7x67hpgli8r7ba2z99w3psiyv5hqmrh94zw141dg210a"))))
     (properties `((upstream-name . "WGCNA")))
     (build-system r-build-system)
     (propagated-inputs
@@ -14398,14 +14404,14 @@ includes data sets from oceanography.")
 (define-public r-ggfortify
   (package
     (name "r-ggfortify")
-    (version "0.4.6")
+    (version "0.4.7")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "ggfortify" version))
        (sha256
         (base32
-         "1clyha9f9ygma64xbgi78lxsp1203f2ashqhhdpm71nr6w91bm88"))))
+         "1wk9j0xg5hj9i1vf62qjiphv8cbsgq7y6baay3pfl3wyb2dwgci0"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-dplyr" ,r-dplyr)
diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
new file mode 100644
index 0000000000..b480b6fe56
--- /dev/null
+++ b/gnu/packages/crates-io.scm
@@ -0,0 +1,92 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2019 Ivan Petkov <ivanppetkov@gmail.com>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages crates-io)
+  #:use-module (guix build-system cargo)
+  #:use-module (guix download)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix packages))
+
+(define-public rust-unicode-xid
+  (package
+    (name "rust-unicode-xid")
+    (version "0.1.0")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "unicode-xid" version))
+        (file-name
+          (string-append name "-" version ".tar.gz"))
+        (sha256
+          (base32
+            "1z57lqh4s18rr4x0j4fw4fmp9hf9346h0kmdgqsqx0fhjr3k0wpw"))))
+    (build-system cargo-build-system)
+    (home-page
+      "https://github.com/unicode-rs/unicode-xid")
+    (synopsis "Determine Unicode XID related properties")
+    (description "Determine whether characters have the XID_Start
+or XID_Continue properties according to Unicode Standard Annex #31.")
+    ;; Dual licensed.
+    (license (list license:asl2.0 license:expat))))
+
+(define-public rust-proc-macro2
+  (package
+    (name "rust-proc-macro2")
+    (version "0.4.27")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "proc-macro2" version))
+        (file-name
+          (string-append name "-" version ".tar.gz"))
+        (sha256
+          (base32
+            "05c92v787snyaq4ss16vxc9mdv6zndfgsdq8k3hnnyffmsf7ycad"))))
+    (build-system cargo-build-system)
+    (arguments
+      `(#:cargo-inputs (("rust-unicode-xid" ,rust-unicode-xid))
+        #:cargo-development-inputs (("rust-quote" ,rust-quote))))
+    (home-page "https://github.com/alexcrichton/proc-macro2")
+    (synopsis "Stable implementation of the upcoming new `proc_macro` API")
+    (description "This package provides a stable implementation of the upcoming new
+`proc_macro` API.  Comes with an option, off by default, to also reimplement itself
+in terms of the upstream unstable API.")
+    ;; Dual licensed.
+    (license (list license:asl2.0 license:expat))))
+
+(define-public rust-quote
+  (package
+    (name "rust-quote")
+    (version "0.6.12")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "quote" version))
+        (file-name
+          (string-append name "-" version ".tar.gz"))
+        (sha256
+          (base32
+            "1nw0klza45hf127kfyrpxsxd5jw2l6h21qxalil3hkr7bnf7kx7s"))))
+    (build-system cargo-build-system)
+    (arguments
+      `(#:cargo-inputs (("rust-proc-macro2" ,rust-proc-macro2))))
+    (home-page "https://github.com/dtolnay/quote")
+    (synopsis "Quasi-quoting macro quote!(...)")
+    (description "Quasi-quoting macro quote!(...)")
+    ;; Dual licensed.
+    (license (list license:asl2.0 license:expat))))
diff --git a/gnu/packages/cross-base.scm b/gnu/packages/cross-base.scm
index 9fcf3bd780..3d36dc6198 100644
--- a/gnu/packages/cross-base.scm
+++ b/gnu/packages/cross-base.scm
@@ -40,7 +40,8 @@
   #:export (cross-binutils
             cross-libc
             cross-gcc
-            cross-newlib?))
+            cross-newlib?
+            cross-kernel-headers))
 
 (define-syntax %xgcc
   ;; GCC package used as the basis for cross-compilation.  It doesn't have to
@@ -286,18 +287,19 @@ target that libc."
 
 (define* (cross-kernel-headers target
                                #:optional
+                               (linux-headers linux-libre-headers)
                                (xgcc (cross-gcc target))
                                (xbinutils (cross-binutils target)))
   "Return headers depending on TARGET."
 
   (define xlinux-headers
-    (package (inherit linux-libre-headers)
-      (name (string-append (package-name linux-libre-headers)
+    (package (inherit linux-headers)
+      (name (string-append (package-name linux-headers)
                            "-cross-" target))
       (arguments
        (substitute-keyword-arguments
            `(#:implicit-cross-inputs? #f
-             ,@(package-arguments linux-libre-headers))
+             ,@(package-arguments linux-headers))
          ((#:phases phases)
           `(alist-replace
             'build
@@ -310,7 +312,7 @@ target that libc."
             ,phases))))
       (native-inputs `(("cross-gcc" ,xgcc)
                        ("cross-binutils" ,xbinutils)
-                       ,@(package-native-inputs linux-libre-headers)))))
+                       ,@(package-native-inputs linux-headers)))))
 
   (define xgnumach-headers
     (package (inherit gnumach-headers)
diff --git a/gnu/packages/crypto.scm b/gnu/packages/crypto.scm
index 39b6446c67..6bee8cb31a 100644
--- a/gnu/packages/crypto.scm
+++ b/gnu/packages/crypto.scm
@@ -75,7 +75,7 @@
 (define-public libsodium
   (package
     (name "libsodium")
-    (version "1.0.17")
+    (version "1.0.18")
     (source (origin
             (method url-fetch)
             (uri (list (string-append
@@ -86,7 +86,7 @@
                         "releases/old/libsodium-" version ".tar.gz")))
             (sha256
              (base32
-              "1cf2d9v1gylz1qcy2zappbf526qfmph6gd6fnn3w2b347vixmhqc"))))
+              "1h9ncvj23qbbni958knzsli8dvybcswcjbx0qjjgi922nf848l3g"))))
     (build-system gnu-build-system)
     (synopsis "Portable NaCl-based crypto library")
     (description
diff --git a/gnu/packages/databases.scm b/gnu/packages/databases.scm
index 42cc205047..f7693cf57d 100644
--- a/gnu/packages/databases.scm
+++ b/gnu/packages/databases.scm
@@ -33,6 +33,7 @@
 ;;; Copyright © 2018 Amirouche Boubekki <amirouche@hypermove.net>
 ;;; Copyright © 2018 Joshua Sierles, Nextjournal <joshua@nextjournal.com>
 ;;; Copyright © 2018 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2019 Jack Hill <jackhill@jackhill.us>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -108,6 +109,7 @@
   #:use-module (guix download)
   #:use-module (guix bzr-download)
   #:use-module (guix git-download)
+  #:use-module (guix build-system emacs)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system go)
   #:use-module (guix build-system perl)
@@ -928,8 +930,7 @@ organized in a hash table or B+ tree.")
                                       (assoc-ref %build-inputs "bash:include")
                                       "/include/bash"))))
 
-    (native-inputs `(("emacs" ,emacs-minimal)
-                     ("bc" ,bc)
+    (native-inputs `(("bc" ,bc)
                      ("bash:include" ,bash "include")
                      ("check" ,check)
                      ("libuuid" ,util-linux)
@@ -948,6 +949,26 @@ types are supported, as is encryption.")
     (license license:gpl3+)
     (home-page "https://www.gnu.org/software/recutils/")))
 
+(define-public emacs-recutils
+  (package
+    (inherit recutils)
+    (name "emacs-recutils")
+    (build-system emacs-build-system)
+    (arguments
+     '(#:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'change-directory
+           (lambda _
+             (chdir "etc")
+             #t)))))
+    (native-inputs '())
+    (inputs '())
+    (synopsis "Emacs mode for working with recutils database files")
+    (description "This package provides an Emacs major mode @code{rec-mode}
+for working with GNU Recutils text-based, human-editable databases.  It
+supports editing, navigation, and querying of recutils database files
+including field and record folding.")))
+
 (define-public rocksdb
   (package
     (name "rocksdb")
@@ -2398,14 +2419,14 @@ You might also want to install the following optional dependencies:
 (define-public python-alembic
   (package
     (name "python-alembic")
-    (version "1.0.2")
+    (version "1.0.10")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "alembic" version))
        (sha256
         (base32
-         "0asqz9mwc4w8bsar1icv3ik9jslxrj3gv3yxgmhc6nc6r9qbkg04"))))
+         "1dwl0264r6ri2jyrjr68am04x538ab26xwy4crqjnnhm4alwm3c2"))))
     (build-system python-build-system)
     (native-inputs
      `(("python-mock" ,python-mock)
diff --git a/gnu/packages/datastructures.scm b/gnu/packages/datastructures.scm
index 4fd1ac2e2f..dabb1f421e 100644
--- a/gnu/packages/datastructures.scm
+++ b/gnu/packages/datastructures.scm
@@ -124,14 +124,14 @@ in between these sequences may be different in both content and length.")
 (define-public liburcu
   (package
     (name "liburcu")
-    (version "0.11.0")
+    (version "0.11.1")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://www.lttng.org/files/urcu/"
                                   "userspace-rcu-" version ".tar.bz2"))
               (sha256
                (base32
-                "1rxk5vbkbmqlsnjnvkjz0pkx2076mqnq6jzblpmz8rk29x66kx8s"))))
+                "0l1kxgzch4m8fxiz2hc8fwg56hrvzzspp7n0svnl7i7iycdrgfcj"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("perl" ,perl)))                 ; for tests
diff --git a/gnu/packages/debian.scm b/gnu/packages/debian.scm
index ba19547898..f94f49c51b 100644
--- a/gnu/packages/debian.scm
+++ b/gnu/packages/debian.scm
@@ -32,7 +32,7 @@
 (define-public debian-archive-keyring
   (package
     (name "debian-archive-keyring")
-    (version "2018.1")
+    (version "2019.1")
     (source
       (origin
         (method git-fetch)
@@ -42,7 +42,7 @@
         (file-name (git-file-name name version))
         (sha256
          (base32
-          "136vr5dj7w0dz563qdghsndcfcqm2m8d4j1dyiq9dzx5vd0rcpcw"))))
+          "0bphwji3ywk1zi5bq8bhqk7l51fwjy1idwsw7zfqnxca8m5wvw1g"))))
     (build-system gnu-build-system)
     (arguments
      '(#:test-target "verify-results"
@@ -117,7 +117,7 @@ contains the archive keys used for that.")
 (define-public debootstrap
   (package
     (name "debootstrap")
-    (version "1.0.111")
+    (version "1.0.114")
     (source
       (origin
         (method git-fetch)
@@ -127,7 +127,7 @@ contains the archive keys used for that.")
         (file-name (git-file-name name version))
         (sha256
          (base32
-          "1b8s00a2kvaajqhjlms3q2dk3gqv6g4yq9h843jal1pm66zsx19n"))))
+          "147308flz9y8g6f972izi3szmsywf5f8xm64z2smy1cayd340i63"))))
     (build-system gnu-build-system)
     (arguments
      `(#:phases
@@ -154,6 +154,11 @@ contains the archive keys used for that.")
                  (("/usr") ubuntu))
                (substitute* "debootstrap"
                  (("=/usr") (string-append "=" out)))
+               ;; Ensure PATH works both in guix and within the debian chroot
+               ;; workaround for: https://bugs.debian.org/929889
+               (substitute* "functions"
+                 (("PATH=/sbin:/usr/sbin:/bin:/usr/bin")
+                  "PATH=$PATH:/sbin:/usr/sbin:/bin:/usr/bin"))
                (substitute* (find-files "scripts" ".")
                  (("/usr/share/zoneinfo") (string-append tzdata "/share/zoneinfo")))
                #t)))
@@ -184,9 +189,5 @@ contains the archive keys used for that.")
     (description "Debootstrap is used to create a Debian base system from
 scratch, without requiring the availability of @code{dpkg} or @code{apt}.
 It does this by downloading .deb files from a mirror site, and carefully
-unpacking them into a directory which can eventually be chrooted into.
-
-It is recommended to run @code{debootstrap --foreign --arch=...} and then
-@code{chroot} into the directory, set the PATH and run @code{debootstrap
---second-stage} after.")
+unpacking them into a directory which can eventually be chrooted into.")
     (license license:gpl2)))
diff --git a/gnu/packages/dictionaries.scm b/gnu/packages/dictionaries.scm
index 881ac93680..9f4dc59cc8 100644
--- a/gnu/packages/dictionaries.scm
+++ b/gnu/packages/dictionaries.scm
@@ -218,7 +218,7 @@ It comes with a German-English dictionary with approximately 270,000 entries.")
 (define-public grammalecte
   (package
     (name "grammalecte")
-    (version "1.1")
+    (version "1.1.1")
     (source
      (origin
        (method url-fetch/zipbomb)
@@ -226,7 +226,7 @@ It comes with a German-English dictionary with approximately 270,000 entries.")
                            "Grammalecte-fr-v" version ".zip"))
        (sha256
         (base32
-         "031d6cn1wn7ps3j38vx6s8z2gjp9nqgiypqm3bfbhxqcammyhian"))))
+         "1al4c3976wgxijxghxqb1banarj82hwad51kln87xj2r5kwcfm05"))))
     (build-system python-build-system)
     (home-page "https://grammalecte.net")
     (synopsis  "French spelling and grammar checker")
diff --git a/gnu/packages/disk.scm b/gnu/packages/disk.scm
index 491f7ce881..778529436b 100644
--- a/gnu/packages/disk.scm
+++ b/gnu/packages/disk.scm
@@ -13,6 +13,7 @@
 ;;; Copyright © 2018 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2018 Rutger Helling <rhelling@mykolab.com>
 ;;; Copyright © 2018, 2019 Pierre Neidhardt <mail@ambrevar.xyz>
+;;; Copyright © 2019 Leo Famulari <leo@famulari.name>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -341,32 +342,31 @@ and can dramatically shorten the lifespan of the drive if left unchecked.")
 (define-public gparted
   (package
     (name "gparted")
-    (version "0.33.0")
+    (version "1.0.0")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "mirror://sourceforge/gparted/gparted/gparted-"
                            version "/gparted-" version ".tar.gz"))
        (sha256
-        (base32 "1ml1ky3s75lbxr91p608q3prsdh9x899mw7nbgk252pqhg4vh8sh"))))
+        (base32
+         "0mdvn85jvy72ff7nds3dakx9kzknh8gx1z8i0w2sf970q03qp2z4"))))
     (build-system gnu-build-system)
     (arguments
-     `(#:tests? #f                      ; tests require a network connection
-       #:configure-flags '("--disable-scrollkeeper")))
+      ;; Tests require access to paths outside the build container, such
+      ;; as '/dev/disk/by-id'
+     `(#:tests? #f))
     (inputs
      `(("util-linux" ,util-linux)
        ("parted" ,parted)
        ("glib" ,glib)
-       ("gtkmm" ,gtkmm-2)
+       ("gtkmm" ,gtkmm)
        ("libxml2" ,libxml2)
-       ("libxslt" ,libxslt)
-       ("gnome-doc-utils" ,gnome-doc-utils)
-       ("docbook-xml" ,docbook-xml-4.2)
-       ("python" ,python-2)
-       ("python-libxml2" ,python2-libxml2)
-       ("which" ,which)))
+       ("yelp-tools" ,yelp-tools)
+       ("itstool" ,itstool)))
     (native-inputs
      `(("intltool" ,intltool)
+       ("lvm2" ,lvm2) ; for tests
        ("pkg-config" ,pkg-config)))
     (home-page "https://gparted.org/")
     (synopsis "Partition editor to graphically manage disk partitions")
diff --git a/gnu/packages/display-managers.scm b/gnu/packages/display-managers.scm
index 29d8ae4eb9..0b8f742c38 100644
--- a/gnu/packages/display-managers.scm
+++ b/gnu/packages/display-managers.scm
@@ -75,6 +75,15 @@
        ("linux-pam" ,linux-pam)
        ("qtbase" ,qtbase)
        ("qtdeclarative" ,qtdeclarative)
+
+       ;; Some user-defined themes use QtQuick components internally.  Adding
+       ;; QtQuick & co. here; they end up in QML2_IMPORT_PATH thanks to
+       ;; 'wrap-qt-program'.
+       ("qtgraphicaleffects" ,qtgraphicaleffects)
+       ("qtquickcontrols" ,qtquickcontrols)
+       ("qtquickcontrols2" ,qtquickcontrols2)
+       ("qtsvg" ,qtsvg)
+
        ("shadow" ,shadow)
        ("wayland" ,wayland)))
     (arguments
diff --git a/gnu/packages/django.scm b/gnu/packages/django.scm
index 2ef50bd0f7..dcef7370bd 100644
--- a/gnu/packages/django.scm
+++ b/gnu/packages/django.scm
@@ -41,13 +41,13 @@
 (define-public python-django
   (package
     (name "python-django")
-    (version "1.11.20")
+    (version "1.11.21")
     (source (origin
               (method url-fetch)
               (uri (pypi-uri "Django" version))
               (sha256
                (base32
-                "0h90kdq8r4y8wa73hdxmyy5psnwlg61dcq3qsa098cpfiyh9vaa3"))))
+                "0adhcw8sx2mgwk9y2j760y96pqbip1ni3sf2v2ls5zxc9x93wwms"))))
     (build-system python-build-system)
     (arguments
      '(#:modules ((srfi srfi-1)
diff --git a/gnu/packages/education.scm b/gnu/packages/education.scm
index 869789552e..98aaad7e63 100644
--- a/gnu/packages/education.scm
+++ b/gnu/packages/education.scm
@@ -27,7 +27,10 @@
   #:use-module (gnu packages base)
   #:use-module (gnu packages bash)
   #:use-module (gnu packages compression)
+  #:use-module (gnu packages databases)
+  #:use-module (gnu packages fonts)
   #:use-module (gnu packages freedesktop)
+  #:use-module (gnu packages game-development)
   #:use-module (gnu packages gettext)
   #:use-module (gnu packages glib)
   #:use-module (gnu packages gnome)
@@ -373,3 +376,107 @@ keyboard is also available if the child does not have any other
 specialized device.")
     (home-page "https://bipede.fr/contrib/")
     (license license:gpl3)))
+
+(define-public childsplay
+  (package
+    (name "childsplay")
+    (version "3.4")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://sourceforge/schoolsplay/"
+                    "childsplay-" version ".tgz"))
+              (sha256
+               (base32
+                "0z7yp2swjnbz51vn2zyfnjn40jq38l5mbh15yafmx1z3vn2z1m77"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:python ,python-2
+       #:tests? #f
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'unbundle-dejavu-font
+           (lambda* (#:key inputs #:allow-other-keys)
+             (let* ((dejavu-dir
+                     (string-append (assoc-ref inputs "font-dejavu")
+                                    "/share/fonts/truetype"))
+                    (dejavu-font
+                     (string-append dejavu-dir
+                                    "/DejaVuSansCondensed-Bold.ttf")))
+               (substitute* "SPConstants.py"
+                 (("^(TTF(BOLD)? = ).*" _ prefix)
+                  (string-append prefix "'" dejavu-font "'\n")))
+               (for-each (lambda (f) (delete-file f))
+                         (find-files "lib/SPData" "DejaVu"))
+               #t)))
+         (delete 'build)
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (pixmaps (string-append out "/share/pixmaps"))
+                    (share (string-append out "/share/childsplay"))
+                    (doc (string-append out "/share/doc/" ,name "-",version)))
+               ;; Install icon.
+               (install-file "lib/SPData/themes/childsplay/logo_cp.svg" pixmaps)
+               ;; Install data.
+               (mkdir-p share)
+               (for-each (lambda (f)
+                           (copy-recursively f (string-append share "/" f)))
+                         '("alphabet-sounds" "lib" "locale" "SPWidgets"))
+               (for-each (lambda (f) (install-file f share))
+                         (find-files "." "\\.(py|dev|db)$"))
+               ;; Install documentation.
+               (mkdir-p doc)
+               (copy-recursively "docs" doc)
+               #t)))
+         (add-after 'install 'create-executable
+           (lambda* (#:key outputs inputs #:allow-other-keys)
+             (let* ((python (string-append (assoc-ref inputs "python")
+                                           "/bin/python"))
+                    (out (assoc-ref outputs "out"))
+                    (bin (string-append out "/bin"))
+                    (executable (string-append bin "/childsplay")))
+               (mkdir-p bin)
+               (call-with-output-file executable
+                 (lambda (file)
+                   (format file
+                           "~a ~a"
+                           python
+                           (string-append out "/share/childsplay/childsplay.py"))))
+               (chmod executable #o555)
+               #t)))
+         (add-after 'install 'create-desktop-file
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (applications (string-append out "/share/applications")))
+               (mkdir-p applications)
+               (call-with-output-file
+                   (string-append applications "/childsplay.desktop")
+                 (lambda (file)
+                   (format file
+                           "[Desktop Entry]~@
+                            Name=Childsplay~@
+                            Comment=Suite of educational games for young children~@
+                            Comment[ca]=Conjunt de jocs educatius per a xiquets~@
+                            Comment[es]=Conjunto de juegos educativos para niños~@
+                            Comment[de]=Sammlung mit lehrreichen Spielen für kleine Kinder~@
+                            Exec=~a/bin/childsplay.py~@
+                            Terminal=false~@
+                            Icon=logo_cp.svg~@
+                            Type=Application~@
+                            Categories=Application;Game;Education;KidsGame;~@
+                            Keywords=suite;children;games;young;educational;~%"
+                           out)))
+               #t))))))
+    (inputs
+     `(("font-dejavu" ,font-dejavu)
+       ("pygame" ,python2-pygame)
+       ("sqlalchemy" ,python2-sqlalchemy)))
+    (synopsis "Suite of educational games for young children")
+    (description "Childsplay is a collection of educational activities
+for young children.  Childsplay can be used at home, kindergartens and
+pre-schools.  Childsplay is a fun and safe way to let young children
+use the computer and at the same time teach them a little math,
+letters of the alphabet, spelling, eye-hand coordination, etc.")
+    (home-page "http://www.schoolsplay.org")
+    (license license:gpl3+)))
diff --git a/gnu/packages/elf.scm b/gnu/packages/elf.scm
index 09be3a75a3..4f365cf205 100644
--- a/gnu/packages/elf.scm
+++ b/gnu/packages/elf.scm
@@ -160,13 +160,19 @@ static analysis of the ELF binaries at hand.")
   (package
     (name "libelf")
     (version "0.8.13")
-    (source (origin
-             (method url-fetch)
-             (uri (string-append "http://www.mr511.de/software/libelf-"
-                                 version ".tar.gz"))
-             (sha256
-              (base32
-               "0vf7s9dwk2xkmhb79aigqm0x0yfbw1j0b9ksm51207qwr179n6jr"))))
+    (source
+     (origin
+       (method url-fetch)
+       (uri (list
+             ;; As of May 2019, the original URL at mr511.de redirects to a
+             ;; domain that doesn't resolve.  Use these two mirrors instead.
+             (string-append "https://fossies.org/linux/misc/old/"
+                            "libelf-" version ".tar.gz")
+             (string-append "https://ftp.osuosl.org/pub/blfs/conglomeration/"
+                            "libelf/libelf-" version ".tar.gz")))
+       (sha256
+        (base32
+         "0vf7s9dwk2xkmhb79aigqm0x0yfbw1j0b9ksm51207qwr179n6jr"))))
     (build-system gnu-build-system)
     (arguments
      `(#:phases
@@ -183,7 +189,8 @@ static analysis of the ELF binaries at hand.")
                                        (%current-system))
                              '("--host=aarch64-unknown-linux-gnu")
                              '()))))))))
-    (home-page "http://www.mr511.de/software/english.html")
+    (home-page (string-append "https://web.archive.org/web/20181111033959/"
+                              "http://www.mr511.de/software/english.html"))
     (synopsis "ELF object file access library")
     (description "Libelf is a C library to access ELF object files.")
     (license lgpl2.0+)))
diff --git a/gnu/packages/emacs-xyz.scm b/gnu/packages/emacs-xyz.scm
index beb35c8122..81f668409a 100644
--- a/gnu/packages/emacs-xyz.scm
+++ b/gnu/packages/emacs-xyz.scm
@@ -33,7 +33,7 @@
 ;;; Copyright © 2017 Mike Gerwitz <mtg@gnu.org>
 ;;; Copyright © 2017, 2018, 2019 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2018 Sohom Bhattacharjee <soham.bhattacharjee15@gmail.com>
-;;; Copyright © 2018 Mathieu Lirzin <mthl@gnu.org>
+;;; Copyright © 2018, 2019 Mathieu Lirzin <mthl@gnu.org>
 ;;; Copyright © 2018, 2019 Pierre Neidhardt <mail@ambrevar.xyz>
 ;;; Copyright © 2018, 2019 Tim Gesthuizen <tim.gesthuizen@yahoo.de>
 ;;; Copyright © 2018, 2019 Jack Hill <jackhill@jackhill.us>
@@ -47,6 +47,7 @@
 ;;; Copyright © 2019 mikadoZero <mikadozero@yandex.com>
 ;;; Copyright © 2019 Gabriel Hondet <gabrielhondet@gmail.com>
 ;;; Copyright © 2019 LaFreniere, Joseph <joseph@lafreniere.xyz>
+;;; Copyright © 2019 Amar Singh <nly@disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -545,6 +546,35 @@ handful of functions that are not resource-specific.")
 for editing Racket's Scribble documentation syntax in Emacs.")
       (license license:gpl3+))))
 
+(define-public emacs-shroud
+  (package
+    (name "emacs-shroud")
+    (version "1.15.1")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/o-nly/emacs-shroud.git")
+             (commit version)))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "0wvm4lxqcc1p8v7rpqal3bnqgnpk1gs7v18i83f6cvi5d88jkgdg"))))
+    (build-system emacs-build-system)
+    (propagated-inputs
+     `(("emacs-bui" ,emacs-bui)
+       ("emacs-dash" ,emacs-dash)
+       ("emacs-f" ,emacs-f)
+       ("emacs-s" ,emacs-s)
+       ("gnupg" ,gnupg)
+       ("shroud" ,shroud)))
+    (home-page "https://github.com/o-nly/emacs-shroud")
+    (synopsis "Emacs interface to the Shroud password manager")
+    (description
+     "This package provides an Emacs interface to the Shroud password manager,
+using the Buffers User Interface library.  You can view, copy, and edit secrets
+from within Emacs.")
+    (license license:gpl3+)))
+
 (define-public emacs-unpackaged-el
   (let ((commit "f4df7f8dfea715e893b2223adda32545803f5cce")
         (revision "1"))
@@ -667,6 +697,37 @@ programs.")
 (define-public haskell-mode
   (deprecated-package "haskell-mode" emacs-haskell-mode))
 
+(define-public emacs-dante
+  (let ((commit "149dded24ca9cdff09a3d859e4b62638db4aadda")
+        (revision "1"))
+    (package
+      (name "emacs-dante")
+      (version (git-version "1.5" revision commit))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/jyp/dante")
+                      (commit commit)))
+                (sha256
+                 (base32
+                  "0i7kj3d6pfys6si9va5f36qzifyac9mahdl0qh40rya9m0syrkla"))
+                (file-name (git-file-name name version))))
+      (build-system emacs-build-system)
+      (propagated-inputs
+       `(("emacs-dash" ,emacs-dash)
+         ("emacs-f" ,emacs-f)
+         ("emacs-flycheck" ,emacs-flycheck)
+         ("emacs-haskell-mode" ,emacs-haskell-mode)
+         ("emacs-s" ,emacs-s)
+         ("emacs-company" ,emacs-company)
+         ("emacs-lcr" ,emacs-lcr)))
+      (home-page "https://github.com/jyp/dante")
+      (synopsis "Minor mode for interactive Haskell")
+      (description
+       "This package provides a minor mode for Haskell development that
+supports type hints, definition-jumping, completion, and more.")
+      (license license:gpl3+))))
+
 (define-public emacs-flycheck
   (package
     (name "emacs-flycheck")
@@ -777,7 +838,7 @@ in certain cases.  It also enables recursion for anonymous functions.")
 (define-public emacs-xr
   (package
     (name "emacs-xr")
-    (version "1.11")
+    (version "1.12")
     (source
      (origin
        (method url-fetch)
@@ -785,7 +846,7 @@ in certain cases.  It also enables recursion for anonymous functions.")
              "https://elpa.gnu.org/packages/xr-" version ".tar"))
        (sha256
         (base32
-         "0xwfs2mkmgf63sfp5jwmw0ybc8pa0rlxh5aqwb348ddgmclv322f"))))
+         "1vv87h0h8ldc1mbsn45w5z1m6jq8j2js4xz23a9ixdby06g60y3g"))))
     (build-system emacs-build-system)
     (home-page "http://elpa.gnu.org/packages/xr.html")
     (synopsis "Convert string regexp to rx notation")
@@ -804,10 +865,33 @@ skip set strings, which are arguments to @code{skip-chars-forward} and
 @code{skip-chars-backward}.")
     (license license:gpl3+)))
 
+(define-public emacs-reformatter
+  (package
+    (name "emacs-reformatter")
+    (version "0.4")
+    (source
+     (origin
+      (method git-fetch)
+      (uri (git-reference
+            (url "https://github.com/purcell/reformatter.el.git")
+            (commit version)))
+      (file-name (git-file-name name version))
+      (sha256
+       (base32
+        "0hhy6x1bkwlhdlarsgm06g3am4yh02yqv8qs34szpzgy53x84qah"))))
+    (build-system emacs-build-system)
+    (home-page "https://github.com/purcell/reformatter.el")
+    (synopsis "Define commands which run reformatters on the current buffer")
+    (description
+     "This library lets elisp authors easily define an idiomatic command to
+reformat the current buffer using a command-line program, together with an
+optional minor mode which can apply this command automatically on save.")
+    (license license:gpl3+)))
+
 (define-public emacs-relint
   (package
     (name "emacs-relint")
-    (version "1.7")
+    (version "1.8")
     (source
      (origin
        (method url-fetch)
@@ -815,7 +899,7 @@ skip set strings, which are arguments to @code{skip-chars-forward} and
              "https://elpa.gnu.org/packages/relint-" version ".el"))
        (sha256
         (base32
-         "0h9nc84yv5lmbaa8any6i3bqcn6xn1gy6cv6kqaywn0nnqrm17i1"))))
+         "1bl6m2h7131acbmr0kqfnjjpv2syiv2mxfnm61g874ynnvkmmkm3"))))
     (build-system emacs-build-system)
     (propagated-inputs `(("emacs-xr" ,emacs-xr)))
     (home-page "https://github.com/mattiase/relint")
@@ -2500,6 +2584,28 @@ evaluated in the browser, just like Emacs does with an inferior Lisp process
 in Lisp modes.")
     (license license:unlicense)))
 
+(define-public emacs-litable
+  (let ((commit "b0278f3f8dcff424bfbdfdefb545b1fbff33206f"))
+    (package
+      (name "emacs-litable")
+      (version (git-version "0.1" "0" commit))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/Fuco1/litable.git")
+                      (commit commit)))
+                (file-name (git-file-name name version))
+                (sha256
+                 (base32
+                  "0bny40hv9a024n01clxns351cs4j4ifhgcc7m4743xncqf612p7g"))))
+      (build-system emacs-build-system)
+      (propagated-inputs
+       `(("emacs-dash" ,emacs-dash)))
+      (home-page "https://github.com/Fuco1/litable/")
+      (synopsis "Dynamic evaluation replacement with Emacs")
+      (description "This packages provides dynamic evaluation in Emacs.")
+      (license license:gpl3+))))
+
 (define-public emacs-string-inflection
   (package
     (name "emacs-string-inflection")
@@ -4074,23 +4180,29 @@ well as completely new features.")
     (license license:gpl3+)))
 
 (define-public emacs-highlight-symbol
-  (package
-    (name "emacs-highlight-symbol")
-    (version "1.3")
-    (source
-     (origin
-       (method git-fetch)
-       (uri (git-reference
-             (url "https://github.com/nschum/highlight-symbol.el.git")
-             (commit version)))
-       (file-name (git-file-name name version))
-       (sha256
-        (base32 "09z13kv2g21kjjkkm3iyaz93sdjmdy2d563r8n7r7ng94acrn7f6"))))
-    (build-system emacs-build-system)
-    (home-page "https://nschum.de/src/emacs/highlight-symbol")
-    (synopsis "Automatic and manual symbol highlighting for Emacs")
-    (description
-     "Use @code{highlight-symbol} to toggle highlighting of the symbol at
+  ;; We prefer a more recent commit that provides an option to squelch
+  ;; echo-area alerts that can drown out useful information like eldoc
+  ;; messages.
+  (let ((commit "7a789c779648c55b16e43278e51be5898c121b3a")
+        (version "1.3")
+        (revision "1"))
+    (package
+      (name "emacs-highlight-symbol")
+      (version (git-version version revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/nschum/highlight-symbol.el.git")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "19cgyk0sh8nsmf3jbi92i8qsdx4l4yilfq5jj9zfdbj9p5gvwx96"))))
+      (build-system emacs-build-system)
+      (home-page "https://nschum.de/src/emacs/highlight-symbol/")
+      (synopsis "Automatic and manual symbol highlighting for Emacs")
+      (description
+       "Use @code{highlight-symbol} to toggle highlighting of the symbol at
 point throughout the current buffer.  Use @code{highlight-symbol-mode} to keep
 the symbol at point highlighted.
 
@@ -4103,7 +4215,7 @@ bindings @code{M-p} and @code{M-p} for navigation.  When
 regardless of @code{highlight-symbol-idle-delay}.
 
 @code{highlight-symbol-query-replace} can be used to replace the symbol. ")
-    (license license:gpl2+)))
+      (license license:gpl2+))))
 
 (define-public emacs-hl-todo
   (package
@@ -4131,16 +4243,17 @@ regexp that matches all known keywords.")
 (define-public emacs-perspective
   (package
     (name "emacs-perspective")
-    (version "1.12")
+    (version "2.2")
     (source
      (origin
-       (method url-fetch)
-       (uri (string-append "https://github.com/nex3/perspective-el/"
-                           "archive/" version ".tar.gz"))
-       (file-name (string-append name "-" version ".tar.gz"))
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/nex3/perspective-el.git")
+             (commit version)))
+       (file-name (git-file-name name version))
        (sha256
         (base32
-         "078ahh0kmhdylq5ib9c81c76kz1n02xwc83pm729d00i84ibviic"))))
+         "0pd5sqrrz6y3md20yh6ffy32jdcgb1gc9b4j14pm6r54bqxik68h"))))
     (build-system emacs-build-system)
     (home-page "https://github.com/nex3/perspective-el")
     (synopsis "Switch between named \"perspectives\"")
@@ -4223,19 +4336,17 @@ after buffer changes.")
 (define-public emacs-realgud
   (package
     (name "emacs-realgud")
-    (version "1.4.5")
+    (version "1.5.0")
     (source
      (origin
-       (method url-fetch)
-       (uri (string-append "https://elpa.gnu.org/packages/realgud-"
-                           version ".tar"))
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/realgud/realgud/")
+             (commit version)))
        (sha256
         (base32
-         "108wgxg7fb4byaiasgvbxv2hq7b00biq9f0mh9hy6vw4160y5w24"))
-       (patches
-        ;; Patch awaiting inclusion upstream (see:
-        ;; https://github.com/realgud/realgud/pull/226).
-        (search-patches "emacs-realgud-fix-configure-ac.patch"))))
+         "0xnick9016wxrgi8v0lycvxhyz8l2k4nfvdpjc5yq476vwrjfzbz"))
+       (file-name (git-file-name name version))))
     (build-system emacs-build-system)
     (arguments
      `(#:tests? #t
@@ -4254,11 +4365,6 @@ after buffer changes.")
              (setenv "HOME" (getenv "TMPDIR"))))
          (add-before 'patch-el-files 'remove-realgud-pkg.el
            (lambda _
-             ;; XXX: This file is auto-generated at some point and causes
-             ;; substitute* to crash during the `patch-el-files' phase with:
-             ;; ERROR: In procedure stat: No such file or directory:
-             ;; "./realgud-pkg.el"
-             (delete-file "./realgud-pkg.el")
              ;; FIXME: `patch-el-files' crashes on this file with error:
              ;; unable to locate "bashdb".
              (delete-file "./test/test-regexp-bashdb.el"))))
@@ -4397,6 +4503,33 @@ splitting the input text by spaces and re-building it into a regular
 expression.")
     (license license:gpl3+)))
 
+(define-public emacs-ivy-pass
+  (let ((commit "5b523de1151f2109fdd6a8114d0af12eef83d3c5")
+        (revision "1"))
+    (package
+      (name "emacs-ivy-pass")
+      (version (git-version "0.1" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/ecraven/ivy-pass.git")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32
+           "18crb4zh2pjf0cmv3b913m9vfng27girjwfqc3mk7vqd1r5a49yk"))))
+      (build-system emacs-build-system)
+      (propagated-inputs
+       `(("emacs-ivy" ,emacs-ivy)
+         ("emacs-password-store" ,emacs-password-store)
+         ("password-store" ,password-store)))
+      (home-page "https://github.com/ecraven/ivy-pass")
+      (synopsis "Ivy interface for password store (pass)")
+      (description "This package provides an Ivy interface for working with
+the password store @code{pass}.")
+      (license license:gpl3))))
+
 (define-public emacs-ivy-yasnippet
   (let ((commit "32580b4fd23ebf9ca7dde96704f7d53df6e253cd")
         (revision "2"))
@@ -4455,7 +4588,7 @@ show icons as well.")
 (define-public emacs-avy
   (package
     (name "emacs-avy")
-    (version "0.4.0")
+    (version "0.5.0")
     (source
      (origin
        (method git-fetch)
@@ -4464,7 +4597,7 @@ show icons as well.")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "0rq9ab264565z83cly743nbhrd9m967apmnlhqr1gy8dm4hcy7nm"))))
+        (base32 "09qdni1s74i5pv8741szl5g4ynj8fxn0x65qmwa9rmfkbimnc0fs"))))
     (build-system emacs-build-system)
     (home-page "https://github.com/abo-abo/avy")
     (synopsis "Tree-based completion for Emacs")
@@ -4554,37 +4687,35 @@ navigate code in a tree-like fashion.")
       (license license:gpl3+))))
 
 (define-public emacs-lispy
-  ;; Release 0.26.0 was almost 3 years ago, and there have been ~772 commits
-  ;; since.
-  (let ((commit "f94cfc6b8f9c3afe7d028c366928049c011023de")
-        (revision "1"))
-    (package
-      (name "emacs-lispy")
-      (version (git-version "0.26.0" revision commit))
-      (home-page "https://github.com/abo-abo/lispy")
-      (source (origin
-                (method git-fetch)
-                (uri (git-reference (url home-page) (commit commit)))
-                (sha256
-                 (base32
-                  "1bm2cpwizg1qfpm377gpx1af1hm5maw69if1csnk5vwaphmv8c4g"))
-                (file-name (git-file-name name version))))
-      (build-system emacs-build-system)
-      (propagated-inputs
-       `(("emacs-ace-window" ,emacs-ace-window)
-         ("emacs-iedit" ,emacs-iedit)
-         ("emacs-ivy" ,emacs-ivy)
-         ("emacs-hydra" ,emacs-hydra)
-         ("emacs-zoutline" ,emacs-zoutline)))
-      (synopsis "Modal S-expression editing")
-      (description
-       "Due to the structure of Lisp syntax it's very rare for the programmer
+  (package
+    (name "emacs-lispy")
+    (version "0.27.0")
+    (home-page "https://github.com/abo-abo/lispy")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/abo-abo/lispy")
+                    (commit version)))
+              (sha256
+               (base32
+                "1cm7f4pyl73f3vhkb7ah6bbbrj2sa7n0p31g09k7dy4zgx04bgw6"))
+              (file-name (git-file-name name version))))
+    (build-system emacs-build-system)
+    (propagated-inputs
+     `(("emacs-ace-window" ,emacs-ace-window)
+       ("emacs-iedit" ,emacs-iedit)
+       ("emacs-ivy" ,emacs-ivy)
+       ("emacs-hydra" ,emacs-hydra)
+       ("emacs-zoutline" ,emacs-zoutline)))
+    (synopsis "Modal S-expression editing")
+    (description
+     "Due to the structure of Lisp syntax it's very rare for the programmer
 to want to insert characters right before \"(\" or right after \")\".  Thus
 unprefixed printable characters can be used to call commands when the point is
 at one of these special locations.  Lispy provides unprefixed keybindings for
 S-expression editing when point is at the beginning or end of an
 S-expression.")
-      (license license:gpl3+))))
+    (license license:gpl3+)))
 
 (define-public emacs-lispyville
   (let ((commit "d28b937f0cabd8ce61e2020fe9a733ca80d82c74")
@@ -5554,7 +5685,7 @@ ack, ag, helm and pt.")
 (define-public emacs-helm
   (package
     (name "emacs-helm")
-    (version "3.1")
+    (version "3.2")
     (source
      (origin
        (method git-fetch)
@@ -5563,7 +5694,7 @@ ack, ag, helm and pt.")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "1x3nv8zvp8vvl30bm2d83hd7zxb0ca64pc8kwb81ml9al6r3mm01"))))
+        (base32 "12yyprpgh2by2pd41i4z9gz55fxg0f90x03bfrsf791xwbhf6931"))))
     (build-system emacs-build-system)
     (propagated-inputs
      `(("emacs-async" ,emacs-async)
@@ -6915,7 +7046,7 @@ highlights quasi-quoted expressions.")
 (define-public emacspeak
   (package
     (name "emacspeak")
-    (version "49.0")
+    (version "50.0")
     (source
      (origin
        (method url-fetch)
@@ -6924,7 +7055,7 @@ highlights quasi-quoted expressions.")
              version "/emacspeak-" version ".tar.bz2"))
        (sha256
         (base32
-         "1smf26m7201z0bk49lzbw9zhbjfi6wylidfjixb8ylp6g0wnh8dx"))))
+         "0rsj7rzfyqmyidfsjrhjnxi2d43axx6r3gac1fhv5xkkbiiqzqkb"))))
     (build-system gnu-build-system)
     (arguments
      '(#:make-flags (list (string-append "prefix="
@@ -6932,13 +7063,10 @@ highlights quasi-quoted expressions.")
        #:phases
        (modify-phases %standard-phases
          (replace 'configure
-           (lambda* (#:key outputs #:allow-other-keys)
-             (let* ((out (assoc-ref outputs "out"))
-                    (lisp (string-append out
-                                         "/share/emacs/site-lisp/emacspeak")))
-               (setenv "SHELL" (which "sh"))
-               ;; Configure Emacspeak according to etc/install.org.
-               (invoke "make" "config"))))
+           (lambda _
+             (setenv "SHELL" (which "sh"))
+             ;; Configure Emacspeak according to etc/install.org.
+             (invoke "make" "config")))
          (add-after 'build 'build-espeak
            (lambda _
              (invoke "make" "espeak")))
@@ -6955,7 +7083,7 @@ highlights quasi-quoted expressions.")
                (for-each
                 (lambda (file)
                   (copy-recursively file (string-append lisp "/" file)))
-                '("etc" "info" "js" "lisp" "media" "scapes" "servers" "sounds"
+                '("etc" "info" "js" "lisp" "media" "servers" "sounds"
                   "stumpwm" "xsl"))
                ;; Make sure emacspeak is loaded from the correct directory.
                (substitute* "etc/emacspeak.sh"
@@ -7019,26 +7147,27 @@ actually changing the buffer's text.")
     (license license:gpl3+)))
 
 (define-public emacs-diff-hl
- (package
-  (name "emacs-diff-hl")
-  (version "1.8.5")
-  (source
-    (origin
-      (method url-fetch)
-      (uri (string-append "https://elpa.gnu.org/packages/diff-hl-"
-                          version ".tar"))
-      (sha256
+  (package
+    (name "emacs-diff-hl")
+    (version "1.8.6")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/dgutov/diff-hl")
+             (commit version)))
+       (sha256
         (base32
-          "1vxc7z7c2qs0mx7l5sa4sybi5qbzv0s79flj74p1ynw8dl3qxg3d"))))
-  (build-system emacs-build-system)
-  (home-page "https://github.com/dgutov/diff-hl")
-  (synopsis
-    "Highlight uncommitted changes using VC")
-  (description
-    "@code{diff-hl-mode} highlights uncommitted changes on the side of the
+         "1xlsg728mz3cwhrsqvisa0aidic67nymd9g7h4c1h3q63j39yb2s"))))
+    (build-system emacs-build-system)
+    (home-page "https://github.com/dgutov/diff-hl")
+    (synopsis
+     "Highlight uncommitted changes using VC")
+    (description
+     "@code{diff-hl-mode} highlights uncommitted changes on the side of the
 window (using the fringe, by default), allows you to jump between
 the hunks and revert them selectively.")
-  (license license:gpl3+)))
+    (license license:gpl3+)))
 
 (define-public emacs-diminish
   (package
@@ -7994,6 +8123,30 @@ from within Emacs.  Restclient runs queries from a plan-text query sheet,
 displays results pretty-printed in XML or JSON with @code{restclient-mode}")
       (license license:public-domain))))
 
+(define-public emacs-whitespace-cleanup-mode
+  (let ((commit "72427144b054b0238a86e1348c45d986b8830d9d")
+        (revision "1"))
+    (package
+      (name "emacs-whitespace-cleanup-mode")
+      (version (git-version "0.10" revision commit))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/purcell/whitespace-cleanup-mode")
+                      (commit commit)))
+                (sha256
+                 (base32
+                  "1zlk534jbwrsabcg3kqlzk4h4hwya60lh6q2n1v4yn4rpf5ghsag"))
+                (file-name (git-file-name name version))))
+      (build-system emacs-build-system)
+      (home-page "https://github.com/purcell/whitespace-cleanup-mode")
+      (synopsis "Intelligently call @code{whitespace-cleanup} on save")
+      (description
+       "This package provides a minor mode that calls
+@code{whitespace-cleanup} before saving the current buffer only if the
+whitespace in the buffer was initially clean.")
+      (license license:gpl3+))))
+
 (define-public emacs-eimp
   (let ((version "1.4.0")
         (commit "2e7536fe6d8f7faf1bad7a8ae37faba0162c3b4f")
@@ -8225,6 +8378,56 @@ multiplexer.")
 editing RPM spec files.")
     (license license:gpl2+)))
 
+(define-public emacs-lcr
+  (package
+    (name "emacs-lcr")
+    (version "1.1")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/jyp/lcr")
+             (commit version)))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "0mc55icihxqpf8b05990q1lc2nj2792wcgyr73xsiqx0963sjaj8"))))
+    (build-system emacs-build-system)
+    (propagated-inputs
+     `(("emacs-dash" ,emacs-dash)))
+    (home-page "https://github.com/jyp/lcr")
+    (synopsis "Lightweight coroutines in Emacs Lisp")
+    (description "This package provides macros that can translate code into
+equivalent continuation-passing code, as well as miscellaneous utility
+functions written in continuation-passing style.")
+    (license license:gpl3+)))
+
+(define-public emacs-attrap
+  (let ((commit "3b092bb8f6755a97e6ecb7623b9d2dde58beba4a")
+        (revision "1"))
+    (package
+      (name "emacs-attrap")
+      (version (git-version "1.0" revision commit))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/jyp/attrap")
+                      (commit commit)))
+                (sha256
+                 (base32
+                  "05d32980saji8ja1pcv65l0s3dq7w0n5hpikbf246hciy1x067pp"))
+                (file-name (git-file-name name version))))
+      (build-system emacs-build-system)
+      (propagated-inputs
+       `(("emacs-dash" ,emacs-dash)
+         ("emacs-f" ,emacs-f)
+         ("emacs-flycheck" ,emacs-flycheck)
+         ("emacs-s" ,emacs-s)))
+      (home-page "https://github.com/jyp/attrap")
+      (synopsis "Fix coding error at point")
+      (description "This package provides a command to fix the Flycheck error
+at point.")
+      (license license:gpl3+))))
+
 (define-public emacs-git-messenger
   (package
     (name "emacs-git-messenger")
@@ -8355,29 +8558,32 @@ key.  Optionally, a mouse pop-up can be added by binding
     (license license:gpl3+)))
 
 (define-public emacs-idris-mode
-  (package
-    (name "emacs-idris-mode")
-    (version "0.9.19")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append
-             "http://stable.melpa.org/packages/idris-mode-"
-             version ".tar"))
-       (sha256
-        (base32
-         "16hl2s22l3wc9drnwzw6hn7xrm49ml9lii0s6k218dgahdgsncmf"))))
-    (build-system emacs-build-system)
-    (propagated-inputs
-     `(("emacs-prop-menu" ,emacs-prop-menu)))
-    (home-page
-     "https://github.com/idris-hackers/idris-mode")
-    (synopsis "Major mode for editing Idris code")
-    (description
-     "This is an Emacs mode for editing Idris code.  It requires the latest
+  (let ((commit "acc8835449475d7cd205aba213fdd3d41c38ba40")
+        (revision "0"))
+    (package
+      (name "emacs-idris-mode")
+      (version (git-version "0.9.19" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/idris-hackers/idris-mode.git")
+               (commit commit)))
+         (file-name (git-file-name name commit))
+         (sha256
+          (base32
+           "0n9xbknc68id0mf8hbfmawi8qpvrs47ix807sk9ffv2g3ik32kk6"))))
+      (build-system emacs-build-system)
+      (propagated-inputs
+       `(("emacs-prop-menu" ,emacs-prop-menu)))
+      (home-page
+       "https://github.com/idris-hackers/idris-mode")
+      (synopsis "Major mode for editing Idris code")
+      (description
+       "This is an Emacs mode for editing Idris code.  It requires the latest
 version of Idris, and some features may rely on the latest Git version of
 Idris.")
-    (license license:gpl3+)))
+      (license license:gpl3+))))
 
 (define-public emacs-browse-at-remote
   (package
@@ -9223,16 +9429,16 @@ functionality is inherited from @code{hcl-mode}.")
 (define-public emacs-exec-path-from-shell
   (package
     (name "emacs-exec-path-from-shell")
-    (version "1.11")
+    (version "1.12")
     (source
      (origin
-       (method url-fetch)
-       (uri (string-append
-             "https://stable.melpa.org/packages/exec-path-from-shell-"
-             version ".el"))
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/purcell/exec-path-from-shell")
+             (commit version)))
        (sha256
         (base32
-         "03qjgb81cq1l3j54lvlf98r75vmmgd06mj6qh5wa6mz4xzp4w26r"))))
+         "1ga8bpxngd3ph2hdiik92c612ki71qxw818i6rgx6f6a5r0sbf3p"))))
     (build-system emacs-build-system)
     (home-page "https://github.com/purcell/exec-path-from-shell")
     (synopsis "Get environment variables such as @var{PATH} from the shell")
@@ -11752,7 +11958,7 @@ Emacs minor mode to escape sequences in code.")
 (define-public emacs-dashboard
   (package
     (name "emacs-dashboard")
-    (version "1.2.4")
+    (version "1.5.0")
     (source
      (origin
        (method git-fetch)
@@ -11761,11 +11967,22 @@ Emacs minor mode to escape sequences in code.")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "1hhh1kfsz87qfmh45wjf2r93rz79rq0vbyxlfrsl02092zjbl1zr"))))
+        (base32 "0ihpcagwgc9qy70lf2y3dvx2bm5h9lnqh4sx6643cr8pp06ysbvq"))))
     (build-system emacs-build-system)
     (propagated-inputs
      `(("emacs-page-break-lines" ,emacs-page-break-lines)))
-    (arguments '(#:include '("\\.el$" "\\.txt$" "\\.png$")))
+    (arguments
+     '(#:include '("\\.el$" "\\.txt$" "\\.png$")
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'patch-dashboard-widgets
+           ;; This phase fixes compilation error.
+           (lambda _
+             (chmod "dashboard-widgets.el" #o666)
+             (emacs-substitute-variables "dashboard-widgets.el"
+               ("dashboard-init-info"
+                '(format "Loaded in %s" (emacs-init-time))))
+             #t)))))
     (home-page "https://github.com/rakanalh/emacs-dashboard")
     (synopsis "Startup screen extracted from Spacemacs")
     (description "This package provides an extensible Emacs dashboard, with
@@ -12467,16 +12684,17 @@ the GIF result.")
 (define-public emacs-google-translate
   (package
     (name "emacs-google-translate")
-    (version "0.11.16")
+    (version "0.11.17")
     (source
      (origin
-       (method url-fetch)
-       (uri (string-append "https://github.com/atykhonov/google-translate/"
-                           "archive/v" version ".tar.gz"))
-       (file-name (string-append name "-" version ".tar.gz"))
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/atykhonov/google-translate/")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
        (sha256
         (base32
-         "01n9spj1d0gjfj39x526rl3m9c28wnx9afipmf5s8y77cx3mfwhl"))))
+         "05ljjw7kbnszygw3w085kv57swfiiqxri2b5xvsf5dw3pc3g7j3c"))))
     (build-system emacs-build-system)
     (home-page "https://github.com/atykhonov/google-translate")
     (synopsis "Emacs interface to Google Translate")
@@ -13405,7 +13623,7 @@ backends, including the @command{wordnet} offline backend.")
 (define-public emacs-editorconfig
   (package
     (name "emacs-editorconfig")
-    (version "0.7.14")
+    (version "0.8.0")
     (source
      (origin
        (method git-fetch)
@@ -13415,7 +13633,7 @@ backends, including the @command{wordnet} offline backend.")
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "19j2428ij7sqvrqs7rqg1mcnv9109y6drqba40dkv3vrkk5d2yia"))))
+         "1b2cpqz75pivl323bs60j5rszwi787x6vy68csycikqz9mhpmjn9"))))
     (build-system emacs-build-system)
     (home-page "https://github.com/editorconfig/editorconfig-emacs")
     (synopsis "Define and maintain consistent coding styles between different
@@ -15346,7 +15564,7 @@ well as an option for visually flashing evaluated s-expressions.")
 (define-public emacs-counsel-tramp
   (package
     (name "emacs-counsel-tramp")
-    (version "0.6.2")
+    (version "0.6.3")
     (source
      (origin
        (method git-fetch)
@@ -15356,7 +15574,7 @@ well as an option for visually flashing evaluated s-expressions.")
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "0nz0733x2b9b5nkwivvhv5c8747dng451na1sdfbkx5x9fjs5gc7"))))
+         "1qy9lf7cyv6hp9mmpwh92cpdcffbxzyzchx6878d5pmk9qh6xy92"))))
     (build-system emacs-build-system)
     (propagated-inputs
      `(("emacs-ivy" ,emacs-ivy)))
@@ -15616,3 +15834,26 @@ verb commands which would are normally destructive (such as deletion) are
 provided.  Those alternative commands are and bound by default to their
 corresponding Evil keys.")
       (license license:expat))))
+
+(define-public emacs-xterm-color
+  (let ((commit "a452ab38a7cfae97078062ff8885b5d74fd1e5a6")
+        (version "1.8")
+        (revision "1"))
+    (package
+      (name "emacs-xterm-color")
+      (version (git-version version revision commit))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/atomontage/xterm-color.git")
+                      (commit commit)))
+                (sha256
+                 (base32
+                  "02kpajb993yshhjhsizpfcbrcndyzkf4dqfipifhxxng50dhp95i"))
+                (file-name (git-file-name name version))))
+      (build-system emacs-build-system)
+      (home-page "https://github.com/atomontage/xterm-color")
+      (synopsis "ANSI & xterm-256 color text property translator for Emacs")
+      (description "@code{xterm-color.el} is an ANSI control sequence to
+text-property translator.")
+      (license license:bsd-2))))
diff --git a/gnu/packages/emulators.scm b/gnu/packages/emulators.scm
index 5b9fee3c09..c32569dd1b 100644
--- a/gnu/packages/emulators.scm
+++ b/gnu/packages/emulators.scm
@@ -401,7 +401,7 @@ Super Game Boy, BS-X Satellaview, and Sufami Turbo.")
 (define-public mgba
   (package
     (name "mgba")
-    (version "0.7.1")
+    (version "0.7.2")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -410,7 +410,7 @@ Super Game Boy, BS-X Satellaview, and Sufami Turbo.")
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "0q0yg2zna7gjbvpaswyykbg3lr9k3c8l8fydqa407xrgq77lahq4"))
+                "0g0xa1mzvan0sl1p5c784j2g5mcw9kd2b7wiahy06gy0c1nmbcnp"))
               (modules '((guix build utils)))
               (snippet
                ;; Make sure we don't use the bundled software.
@@ -1185,7 +1185,7 @@ play them on systems for which they were never designed!")
 (define-public mame
   (package
     (name "mame")
-    (version "0.209")
+    (version "0.210")
     (source
      (origin
        (method git-fetch)
@@ -1195,7 +1195,7 @@ play them on systems for which they were never designed!")
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "08qvwmx8wbfkqxiccmcff86dsrlq6wjxf6blnhhrsbzic1ji99bh"))
+         "08c62mc8aajzh44q36qvmrcq404hdzh3i8wwdfnvn0c4w8dbf486"))
        (modules '((guix build utils)))
        (snippet
         ;; Remove bundled libraries.
@@ -1344,6 +1344,7 @@ play them on systems for which they were never designed!")
        ("fontconfig" ,fontconfig)
        ("glm" ,glm)
        ("libjpeg" ,libjpeg-8)    ;jpeg_read_header argument error in libjpeg-9
+       ("libxi" ,libxi)
        ("libxinerama" ,libxinerama)
        ("lua" ,lua)
        ("portaudio" ,portaudio)
diff --git a/gnu/packages/enlightenment.scm b/gnu/packages/enlightenment.scm
index 11fcf0b7b0..8bec452265 100644
--- a/gnu/packages/enlightenment.scm
+++ b/gnu/packages/enlightenment.scm
@@ -3,7 +3,7 @@
 ;;; Copyright © 2015 Daniel Pimentel <d4n1@member.fsf.org>
 ;;; Copyright © 2015, 2016, 2017, 2018, 2019 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2017 ng0 <ng0@n0.is>
-;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018 Timo Eisenmann <eisenmann@fn.de>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -184,7 +184,7 @@ removable devices or support for multimedia.")
 (define-public terminology
   (package
     (name "terminology")
-    (version "1.4.0")
+    (version "1.4.1")
     (source (origin
               (method url-fetch)
               (uri
@@ -192,7 +192,7 @@ removable devices or support for multimedia.")
                               "terminology/terminology-" version ".tar.xz"))
               (sha256
                (base32
-                "0q1y7fadj42n23aspx9y8hm4w4xlc316wc3415wnf75ibsx08ngd"))
+                "0mm9v5a94369is3kaarnr3a28wy42wslzi1mcisaidlcldgv7f6p"))
               (modules '((guix build utils)))
               ;; Remove the bundled fonts.
               (snippet
diff --git a/gnu/packages/finance.scm b/gnu/packages/finance.scm
index e1a1e8ab6f..5b95bcb704 100644
--- a/gnu/packages/finance.scm
+++ b/gnu/packages/finance.scm
@@ -345,7 +345,7 @@ do so.")
 (define-public electrum
   (package
     (name "electrum")
-    (version "3.3.5")
+    (version "3.3.6")
     (source
      (origin
        (method url-fetch)
@@ -353,7 +353,7 @@ do so.")
                            version "/Electrum-"
                            version ".tar.gz"))
        (sha256
-        (base32 "1csj0n96zlajnrs39wsazfj5lmy7v7n77cdz56lr8nkmchh6k9z1"))
+        (base32 "0am5ki3z0yvhrz16vp2jjy5fkxxqph0mj9qqpbw3kpql65shykwz"))
        (modules '((guix build utils)))
        (snippet
         '(begin
@@ -742,14 +742,14 @@ Ledger Blue/Nano S.")
 (define-public python-trezor
   (package
     (name "python-trezor")
-    (version "0.11.2")
+    (version "0.11.3")
     (source
       (origin
         (method url-fetch)
         (uri (pypi-uri "trezor" version))
         (sha256
           (base32
-            "1f0zfki12mnhidkfxpx2lpq1xim8f35i2d64bx9lf4m26xxv9x56"))))
+            "0211m027vlvyqy83kwbjjjxalb04xgf1klv0h0y0f0yhj07516n7"))))
     (build-system python-build-system)
     (arguments
      `(#:phases
@@ -770,12 +770,13 @@ Ledger Blue/Nano S.")
        ("python-requests" ,python-requests)
        ("python-typing-extensions" ,python-typing-extensions)))
     (native-inputs
-     `(("protobuf" ,protobuf) ; Tests
-       ("python-black" ,python-black) ; Tests
-       ("python-protobuf" ,python-protobuf) ; Tests
-       ("python-isort" ,python-isort) ; Tests
-       ("python-pyqt" ,python-pyqt) ; Tests
-       ("python-pytest" ,python-pytest))) ; Tests
+     ;; For tests.
+     `(("protobuf" ,protobuf)
+       ("python-black" ,python-black)
+       ("python-protobuf" ,python-protobuf)
+       ("python-isort" ,python-isort)
+       ("python-pyqt" ,python-pyqt)
+       ("python-pytest" ,python-pytest)))
     (home-page "https://github.com/trezor/python-trezor")
     (synopsis "Python library for communicating with TREZOR Hardware Wallet")
     (description "@code{trezor} is a Python library for communicating with
diff --git a/gnu/packages/fonts.scm b/gnu/packages/fonts.scm
index 3a801e5c94..0ac0b7b207 100644
--- a/gnu/packages/fonts.scm
+++ b/gnu/packages/fonts.scm
@@ -616,15 +616,17 @@ languages, plus Greek and Cyrillic.")
 (define-public font-gnu-unifont
   (package
     (name "font-gnu-unifont")
-    (version "12.0.01")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append
-                    "mirror://gnu/unifont/unifont-" version "/unifont-"
-                    version ".tar.gz"))
-              (sha256
-               (base32
-                "059j82z6z4wqyy3261ns0zg2b2vh2wvxxfbsa9hra9xasism49vb"))))
+    (version "12.1.02")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (list
+             (string-append "http://unifoundry.com/pub/unifont/unifont-"
+                            version "/unifont-" version ".tar.gz")
+             (string-append "mirror://gnu/unifont/unifont-"
+                            version "/unifont-" version ".tar.gz")))
+       (sha256
+        (base32 "12wdxnlyz5gl5d7h6pazcz8d7h81fwkng1xrayxsgrzh6bqdq4p8"))))
     (build-system gnu-build-system)
     (outputs '("out"   ; TrueType version
                "pcf"   ; PCF (bitmap) version
diff --git a/gnu/packages/fpga.scm b/gnu/packages/fpga.scm
index 83854ef9c6..7b661d39ac 100644
--- a/gnu/packages/fpga.scm
+++ b/gnu/packages/fpga.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2016 Danny Milosavljevic <dannym@scratchpost.org>
 ;;; Copyright © 2016, 2017 Theodoros Foradis <theodoros@foradis.org>
-;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2019 Amin Bandali <bandali@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -301,14 +301,14 @@ Includes the actual FTDI connector.")
 (define-public gtkwave
   (package
     (name "gtkwave")
-    (version "3.3.100")
+    (version "3.3.101")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://gtkwave.sourceforge.net/"
                                   "gtkwave-" version ".tar.gz"))
               (sha256
                (base32
-                "1z60i5nh8dz8j9ii63fwaw7k0p3x0scp91478cxmdv4xhp4njlxa"))))
+                "1j6capxwgi8aj3sgqg1r7161icni9y8y93g1rl3bzd3s40jcyhsz"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("gperf" ,gperf)
diff --git a/gnu/packages/game-development.scm b/gnu/packages/game-development.scm
index 62f6051e98..63ccd20470 100644
--- a/gnu/packages/game-development.scm
+++ b/gnu/packages/game-development.scm
@@ -435,7 +435,7 @@ support.")
 (define-public tiled
   (package
     (name "tiled")
-    (version "1.2.3")
+    (version "1.2.4")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -444,7 +444,7 @@ support.")
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "1nfyigfkl10n9r82p1qxhpr09jn2kwalh9n5r209bcaj8dxspph8"))))
+                "04v738h298pvcwb70mwd1r2yj7578f6gkfzs0165j9fqy7avwm18"))))
     (build-system gnu-build-system)
     (inputs
      `(("qtbase" ,qtbase)
@@ -465,7 +465,7 @@ support.")
              (let ((out (assoc-ref outputs "out")))
                (invoke "qmake"
                        (string-append "PREFIX=" out))))))))
-    (home-page "http://www.mapeditor.org/")
+    (home-page "https://www.mapeditor.org/")
     (synopsis "Tile map editor")
     (description
      "Tiled is a general purpose tile map editor.  It is meant to be used for
@@ -684,19 +684,17 @@ etc.")
 (define-public allegro
   (package
     (name "allegro")
-    (version "5.2.4.0")
+    (version "5.2.5.0")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/liballeg/allegro5/releases"
                                   "/download/" version "/allegro-"
                                   version ".tar.gz"))
-              (patches (search-patches
-                        "allegro-mesa-18.2.5-and-later.patch"))
               (sha256
                (base32
-                "1w9a5yqi5q03b2qvmx5ff90paz0xbr9cy7i7f0xiqa65ava66q9l"))))
+                "06dpkfnac8w3pq36834nn2iij3ajz6prladqd0w92lq39aiqv5jr"))))
     (build-system cmake-build-system)
-    (arguments `(#:tests? #f)) ; there are no tests
+    (arguments `(#:tests? #f))          ; there are no tests
     (inputs
      ;; FIXME: Add the following optional inputs: xinput2, opensl, dumb
      `(("flac" ,flac)
@@ -1321,24 +1319,15 @@ a 2D editor view.")
 (define-public guile-chickadee
   (package
     (name "guile-chickadee")
-    (version "0.3.0")
+    (version "0.4.0")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://files.dthompson.us/chickadee/"
                                   "chickadee-" version ".tar.gz"))
               (sha256
                (base32
-                "0jl223dybsj5gvs7z4q60gnafj1b7kgi5mx0kj58m5knrp8qwg5h"))))
+                "1fdicsgls5cp0yffcm5vjmav67gv9bxhz1s3jvdvinspxb485x7l"))))
     (build-system gnu-build-system)
-    (arguments
-     '(#:make-flags '("GUILE_AUTO_COMPILE=0")
-       #:phases
-       (modify-phases %standard-phases
-         (add-before 'configure 'patch-godir
-           (lambda _
-             ;; Install compiled '.go' files into the site directory.
-             (substitute* "Makefile.in"
-               (("/ccache") "/site-ccache")))))))
     (propagated-inputs
      `(("guile-opengl" ,guile-opengl)
        ("guile-sdl2" ,guile-sdl2)))
@@ -1521,5 +1510,4 @@ the original, ioquake3 has been cleaned up, bugs have been fixed and features
 added.  The permanent goal is to create the open source Quake 3 distribution
 upon which people base their games, ports to new platforms, and other
 projects.")
-      (supported-systems '("x86_64-linux" "i686-linux"))
       (license license:gpl2))))
diff --git a/gnu/packages/games.scm b/gnu/packages/games.scm
index 2feecaa729..b34b1e1be2 100644
--- a/gnu/packages/games.scm
+++ b/gnu/packages/games.scm
@@ -40,6 +40,7 @@
 ;;; Copyright © 2019 Oleg Pykhalov <go.wigust@gmail.com>
 ;;; Copyright © 2019 Pierre Langlois <pierre.langlois@gmx.com>
 ;;; Copyright © 2019 Julien Lepiller <julien@lepiller.eu>
+;;; Copyright © 2019 Jesse Gibbons <jgibbons2357+guix@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -141,6 +142,7 @@
   #:use-module (gnu packages sdl)
   #:use-module (gnu packages serialization)
   #:use-module (gnu packages sqlite)
+  #:use-module (gnu packages squirrel)
   #:use-module (gnu packages swig)
   #:use-module (gnu packages tcl)
   #:use-module (gnu packages terminals)
@@ -3490,19 +3492,36 @@ with the \"Stamp\" tool within Tux Paint.")
 (define-public supertux
   (package
    (name "supertux")
-   (version "0.5.1")
+   (version "0.6.0")
    (source (origin
             (method url-fetch)
             (uri (string-append "https://github.com/SuperTux/supertux/"
                                 "releases/download/v" version "/SuperTux-v"
                                 version "-Source.tar.gz"))
+            (file-name (string-append name "-" version ".tar.gz"))
             (sha256
              (base32
-              "1i8avad7w7ikj870z519j383ldy29r6f956bs38cbr8wk513pp69"))))
+              "1h1s4abirkdv4ag22zvyk6zkk64skqbjmcnnba67ps4hdzxfbhy4"))
+            (patches
+             (search-patches "supertux-fix-build-with-gcc5.patch"
+                             "supertux-unbundle-squirrel.patch"))))
    (arguments
     '(#:tests? #f
       #:configure-flags '("-DINSTALL_SUBDIR_BIN=bin"
-                          "-DENABLE_BOOST_STATIC_LIBS=OFF")))
+                          "-DENABLE_BOOST_STATIC_LIBS=OFF"
+                          "-DUSE_SYSTEM_PHYSFS=ON")
+      #:phases
+      (modify-phases %standard-phases
+        (add-after 'unpack 'patch-squirrel-path
+          (lambda* (#:key inputs #:allow-other-keys)
+            (let ((squirrel (assoc-ref inputs "squirrel")))
+              (substitute* "CMakeLists.txt"
+                (("set\\(SQUIRREL_PREFIX.*")
+                 (string-append "set(SQUIRREL_PREFIX " squirrel ")"))
+                (("add_dependencies\\(supertux2_lib squirrel\\)") "")
+                (("\\$\\{SQUIRREL_PREFIX\\}/include")
+                 (string-append "${SQUIRREL_PREFIX}/include/squirrel"))))
+            #t)))))
    (build-system cmake-build-system)
    (inputs `(("sdl2" ,sdl2)
              ("sdl2-image" ,sdl2-image)
@@ -3514,7 +3533,9 @@ with the \"Stamp\" tool within Tux Paint.")
              ("libogg" ,libogg)
              ("physfs" ,physfs)
              ("curl" ,curl)
-             ("boost" ,boost)))
+             ("boost" ,boost)
+             ("freetype" ,freetype)
+             ("squirrel" ,squirrel)))
    (native-inputs `(("pkg-config" ,pkg-config)))
    (synopsis "2D platformer game")
    (description "SuperTux is a free classic 2D jump'n run sidescroller game
@@ -7312,3 +7333,51 @@ Unfortunately, Hacker is not aware of Drascula's real ambitions: DOMINATING
 the World and demonstrating that he is even more evil than his brother Vlad.")
     ;; Drascula uses a BSD-like license.
     (license (license:non-copyleft "file:///readme.txt"))))
+
+(define-public gnurobots
+  (package
+    (name "gnurobots")
+    (version "1.2.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "mirror://gnu/gnurobots/gnurobots-"
+                           version ".tar.gz"))
+       (sha256
+        (base32
+         "07gi3lsmbzzsjambgixj6xy79lh22km84z7bnzgwzxdy806lyvwb"))))
+    (build-system gnu-build-system)
+    (inputs
+     `(("glib" ,glib)
+       ("gtk+" ,gtk+-2)
+       ("vte" ,vte/gtk+-2)
+       ("readline" ,readline)
+       ("guile" ,guile-1.8)))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (arguments
+     `(#:make-flags
+       (list
+        ;; Do not abort build on "deprecated-declarations" warnings.
+        "CFLAGS=-Wno-error=deprecated-declarations"
+        ;; Find readline headers in sub-directory.
+        (string-append "READLINE_CFLAGS=-I"
+                       (assoc-ref %build-inputs "readline")
+                       "/include/readline/"))
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'install 'install-doc
+           (lambda* (#:key outputs #:allow-other-keys)
+             (install-file "doc/Robots-HOWTO"
+                           (string-append (assoc-ref outputs "out")
+                                          "/share/doc/gnurobots-"
+                                          ,version))
+             #t)))))
+    (home-page "https://www.gnu.org/software/gnurobots/")
+    (synopsis "Program a little robot and watch it explore a world")
+    (description
+     "GNU Robots is a game in which you program a robot to explore a world
+full of enemies that can hurt it, obstacles and food to be eaten.  The goal of
+the game is to stay alive and collect prizes.  The robot program conveniently
+may be written in a plain text file in the Scheme programming language.")
+    (license license:gpl3+)))
diff --git a/gnu/packages/geo.scm b/gnu/packages/geo.scm
index 94f2cf0cfb..ec5ace3519 100644
--- a/gnu/packages/geo.scm
+++ b/gnu/packages/geo.scm
@@ -7,6 +7,7 @@
 ;;; Copyright © 2018 Arun Isaac <arunisaac@systemreboot.net>
 ;;; Copyright © 2018 Joshua Sierles, Nextjournal <joshua@nextjournal.com>
 ;;; Copyright © 2018 Julien Lepiller <julien@lepiller.eu>
+;;; Copyright © 2019 Guillaume Le Vaillant <glv@posteo.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -36,6 +37,7 @@
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix packages)
   #:use-module (guix utils)
+  #:use-module (gnu packages autotools)
   #:use-module (gnu packages boost)
   #:use-module (gnu packages check)
   #:use-module (gnu packages compression)
@@ -840,3 +842,30 @@ map, geocoding with Nominatim, or general analysis.")
 the texture and density of features is visible at every zoom level, instead of
 dropping features at lower levels.")
     (license license:bsd-2)))
+
+(define-public osmctools
+  (package
+    (name "osmctools")
+    (version "0.9")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://gitlab.com/osm-c-tools/osmctools")
+             (commit version)))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32
+         "1m8d3r1q1v05pkr8k9czrmb4xjszw6hvgsf3kn9pf0v14gpn4r8f"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("autoconf" ,autoconf)
+       ("automake" ,automake)))
+    (inputs
+     `(("zlib" ,zlib)))
+    (home-page "https://gitlab.com/osm-c-tools/osmctools")
+    (synopsis "Tools to convert, filter and update OpenStreetMap data files")
+    (description "This project contains a few tools which are used in the
+OpenStreetMap project.  They can be used to convert, filter and update
+OpenStreetMap data files.")
+    (license license:agpl3)))
diff --git a/gnu/packages/gettext.scm b/gnu/packages/gettext.scm
index 7d6d62acda..ef80af42ea 100644
--- a/gnu/packages/gettext.scm
+++ b/gnu/packages/gettext.scm
@@ -176,14 +176,14 @@ color, font attributes (weight, posture), or underlining.")
 (define-public po4a
   (package
     (name "po4a")
-    (version "0.55")
+    (version "0.56")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/mquinson/po4a/releases/download/v"
                                   version "/po4a-" version ".tar.gz"))
               (sha256
                (base32
-                "1qss4q5df3nsydsbggb7gg50bn0kdxq5wn8riqm9zwkiq6a4bifg"))))
+                "0kyhww0yw4q0m4vj8vil2wsf6sn4hidh8mqz2gjrq7gpdf83cmnr"))))
     (build-system perl-build-system)
     (arguments
      `(#:phases
diff --git a/gnu/packages/gimp.scm b/gnu/packages/gimp.scm
index 700d0bbf09..70bc8db4c1 100644
--- a/gnu/packages/gimp.scm
+++ b/gnu/packages/gimp.scm
@@ -49,7 +49,7 @@
 (define-public babl
   (package
     (name "babl")
-    (version "0.1.62")
+    (version "0.1.66")
     (source (origin
               (method url-fetch)
               (uri (list (string-append "https://download.gimp.org/pub/babl/"
@@ -63,7 +63,7 @@
                                         "/babl-" version ".tar.bz2")))
               (sha256
                (base32
-                "047msfzj8v4sfl61a2xhd69r9rh2pjq4lzpk3j10ijyv9qbry9yw"))))
+                "0qx1dwbinxihwl2lmxi60qiqi402jlrdcnixx14kk6j88n9xi79n"))))
     (build-system gnu-build-system)
     (home-page "http://gegl.org/babl/")
     (synopsis "Image pixel format conversion library")
@@ -118,7 +118,7 @@ buffers.")
 (define-public gimp
   (package
     (name "gimp")
-    (version "2.10.10")
+    (version "2.10.12")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://download.gimp.org/pub/gimp/v"
@@ -126,7 +126,7 @@ buffers.")
                                   "/gimp-" version ".tar.bz2"))
               (sha256
                (base32
-                "0xwck5nbpb945s1cyij3kfqw1pchbhx8i5vf5hgywyjw4r1z5l8j"))))
+                "0wdcr8d2ink4swn5r4v13bsiya6s3xm4ya97sdbhs4l40y7bb03x"))))
     (build-system gnu-build-system)
     (outputs '("out"
                "doc"))                            ; 9 MiB of gtk-doc HTML
diff --git a/gnu/packages/gl.scm b/gnu/packages/gl.scm
index bac5f9d008..d2be6a5127 100644
--- a/gnu/packages/gl.scm
+++ b/gnu/packages/gl.scm
@@ -447,7 +447,7 @@ from software emulation to complete hardware acceleration for modern GPUs.")
                '("src/xdemos/glxdemo" "src/xdemos/glxgears"
                  "src/xdemos/glxinfo" "src/xdemos/glxheads"))
               #t))))))
-    (home-page "http://mesa3d.org/")
+    (home-page "https://mesa3d.org/")
     (synopsis "Utility tools for Mesa")
     (description
      "The mesa-utils package contains several utility tools for Mesa: glxdemo,
@@ -619,7 +619,7 @@ OpenGL graphics API.")
      `(("unzip" ,unzip)))
     (inputs
      `(("mesa" ,mesa)))
-    (home-page "http://www.lonesock.net/soil.html")
+    (home-page "https://www.lonesock.net/soil.html")
     (synopsis "OpenGL texture loading library")
     (description
      "SOIL is a tiny C library used primarily for uploading textures into
@@ -724,7 +724,7 @@ mixed vector/bitmap output.")
 (define-public virtualgl
   (package
     (name "virtualgl")
-    (version "2.6.1")
+    (version "2.6.2")
     (source
      (origin
        (method git-fetch)
@@ -733,7 +733,7 @@ mixed vector/bitmap output.")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "04fdwm6mz76lw4iwd5m7yxjfhpa0rpxd357bv5smk5lclnlbz1bv"))))
+        (base32 "0yyc553xsb5n0rx7jp9p4wdbd7md07b3qrkf3ssyjavqqg908qg9"))))
     (arguments
      `(#:tests? #f                      ; no tests are available
        #:configure-flags (list
diff --git a/gnu/packages/gnome.scm b/gnu/packages/gnome.scm
index e94707132b..8497a304da 100644
--- a/gnu/packages/gnome.scm
+++ b/gnu/packages/gnome.scm
@@ -162,6 +162,7 @@
   #:use-module (guix build-system glib-or-gtk)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system meson)
+  #:use-module (guix build-system python)
   #:use-module (guix build-system trivial)
   #:use-module (guix download)
   #:use-module (guix git-download)
@@ -2114,7 +2115,7 @@ Hints specification (EWMH).")
 (define-public gnumeric
   (package
     (name "gnumeric")
-    (version "1.12.44")
+    (version "1.12.45")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnome/sources/gnumeric/"
@@ -2122,7 +2123,7 @@ Hints specification (EWMH).")
                                   "gnumeric-" version ".tar.xz"))
               (sha256
                (base32
-                "0147962c6ybdsj57rz95nla0rls7g545wc2n7pz59zmzyd5pksk0"))))
+                "0c8dl1kvnj3g32qy3s92qpqpqfy0in59cx005gjvvzsflahav61h"))))
     (build-system glib-or-gtk-build-system)
     (arguments
      `(;; The gnumeric developers don't worry much about failing tests.
@@ -3940,26 +3941,15 @@ which can read a large number of file formats.")
 (define-public rhythmbox
  (package
    (name "rhythmbox")
-   (version "3.4.2")
+   (version "3.4.3")
    (source (origin
             (method url-fetch)
             (uri (string-append "mirror://gnome/sources/" name "/"
                                 (version-major+minor version) "/"
                                 name "-" version ".tar.xz"))
-            (patches
-             (list
-              ;; fmradio: Fix build with GStreamer master
-              (origin
-                (method url-fetch)
-                (uri (string-append
-                      "https://gitlab.gnome.org/GNOME/rhythmbox/commit/"
-                      "b182c6b9e1d09e601bac0b703cc5f8b159ebbc3a.patch"))
-                (sha256
-                 (base32
-                  "06n87xgf927djmv1vshal84nqx7g8nwgljza3g2vydhy7g2n1csq")))))
             (sha256
              (base32
-              "0hzcns8gf5yb0rm4ss8jd8qzarcaplp5cylk6plwilsqfvxj4xn2"))))
+              "1yx3n7p9vmv23jsv98fxwq95n78awdxqm8idhyhxx2d6vk4w1hgx"))))
    (build-system glib-or-gtk-build-system)
    (arguments
     `(#:configure-flags
@@ -4319,15 +4309,15 @@ work and the interface is well tested.")
 (define-public eolie
   (package
     (name "eolie")
-    (version "0.9.60")
+    (version "0.9.62")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://gitlab.gnome.org/World/eolie/"
-                                  "uploads/3b2ceb7eb15860587db6886bfdd8a91e/"
+                                  "uploads/bb4aad19272cc636bd17f2f6602127fe/"
                                   "eolie-" version ".tar.xz"))
               (sha256
                (base32
-                "1s9gkzxa6457v6bh0q8n1ijq1chd2jwgvhk5kppsnya7kxvsx8qh"))))
+                "06v76hg87fnhw45dil5vvl20myvaa38n1jqsl0lmkkq6af4mk8wx"))))
     (build-system meson-build-system)
     (arguments
      `(#:glib-or-gtk? #t
@@ -4441,7 +4431,7 @@ principles are simplicity and standards compliance.")
 (define-public d-feet
   (package
     (name "d-feet")
-    (version "0.3.11")
+    (version "0.3.14")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnome/sources/" name "/"
@@ -4449,7 +4439,7 @@ principles are simplicity and standards compliance.")
                                   name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1hmrijm4d9vwzx2r8qzzsy8ccpj79l1y6cc569n9jjzqcq699p53"))))
+                "1m8lwiwl5jhi0x7y6x5zmd3hjplgvdjrb8a8jg74rvkygslj1p7f"))))
     (build-system glib-or-gtk-build-system)
     (arguments
      '(#:out-of-source? #f ; tests need to run in the source directory.
@@ -4488,6 +4478,7 @@ principles are simplicity and standards compliance.")
      `(("gobject-introspection" ,gobject-introspection)
        ("gtk+" ,gtk+)
        ("python" ,python-wrapper)
+       ("hicolor-icon-theme" ,hicolor-icon-theme)
        ("python-pygobject" ,python-pygobject)))
     (home-page "https://wiki.gnome.org/Apps/DFeet")
     (synopsis "D-Bus debugger")
@@ -5473,7 +5464,7 @@ to virtual private networks (VPNs) via OpenVPN.")
 (define-public mobile-broadband-provider-info
   (package
     (name "mobile-broadband-provider-info")
-    (version "20170310")
+    (version "20190116")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -5482,10 +5473,10 @@ to virtual private networks (VPNs) via OpenVPN.")
                     "mobile-broadband-provider-info-" version ".tar.xz"))
               (sha256
                (base32
-                "0fxm11x8k9hxjg8l5inaldfmmjnwkay3ibjv899jra03bv4h6kql"))))
+                "16y5lc7pfdvai9c8xwb825zc3v46039gghbip13fqslf5gw11fic"))))
     (build-system gnu-build-system)
     (arguments
-     `(#:tests? #f)) ; No tests
+     `(#:tests? #f))                    ; no tests
     (home-page "https://wiki.gnome.org/Projects/NetworkManager")
     (synopsis "Database of broadband connection configuration")
     (description "Database of broadband connection configuration.")
@@ -5876,6 +5867,9 @@ devices using the GNOME desktop.")
                  (("\"nm-connection-editor")
                   (string-append "\"" nm-applet
                                  "/bin/nm-connection-editor")))
+               (substitute* '("panels/user-accounts/run-passwd.c")
+                 (("/usr/bin/passwd")
+                  "/run/setuid-programs/passwd"))
                #t))))))
     (native-inputs
      `(("glib:bin" ,glib "bin") ; for glib-mkenums, etc.
@@ -7970,3 +7964,95 @@ functionality.")
     (license (list license:lgpl2.1 license:lgpl3 ; either one of these
                    license:openldap2.8 ; addressbook/gui/component/openldap-extract.h
                    license:lgpl2.1+))))  ; smime/lib/*
+
+(define-public gthumb
+  (package
+    (name "gthumb")
+    (version "3.8.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://gnome/sources/gthumb/"
+                                  (version-major+minor version) "/"
+                                  "gthumb-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1l2s1facq1r6yvqjqc34aqfzlvb3nhkhn79xisxbbdlgrrxdq52f"))))
+    (build-system meson-build-system)
+    (arguments
+     `(#:glib-or-gtk? #t
+       #:configure-flags
+       ;; Ensure the RUNPATH contains all installed library locations.
+       (list (string-append "-Dc_link_args=-Wl,-rpath="
+                            (assoc-ref %outputs "out")
+                            "/lib/gthumb/extensions")
+             (string-append "-Dcpp_link_args=-Wl,-rpath="
+                            (assoc-ref %outputs "out")
+                            "/lib/gthumb/extensions"))))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)
+       ("glib:bin" ,glib "bin")                   ; for glib-compile-resources
+       ("gtk+:bin" ,gtk+ "bin")                   ; for gtk-update-icon-cache
+       ("desktop-file-utils" ,desktop-file-utils) ; for update-desktop-database
+       ("intltool" ,intltool)
+       ("itstool" ,itstool)))
+    (inputs
+     `(("exiv2" ,exiv2)
+       ("gtk" ,gtk+)
+       ("gsettings-desktop-schemas" ,gsettings-desktop-schemas)
+       ("gstreamer" ,gstreamer)
+       ("clutter" ,clutter)
+       ("clutter-gst" ,clutter-gst)
+       ("clutter-gtk" ,clutter-gtk)
+       ("libjpeg" ,libjpeg)
+       ("libtiff" ,libtiff)
+       ("libraw" ,libraw)))
+    (home-page "https://wiki.gnome.org/Apps/Gthumb")
+    (synopsis "GNOME image viewer and browser")
+    (description "GThumb is an image viewer, browser, organizer, editor and
+advanced image management tool")
+    (license license:gpl2+)))
+
+(define-public terminator
+  (package
+    (name "terminator")
+    (version "1.91")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://launchpad.net/" name "/"
+                                  "gtk3/" version "/" "+download/"
+                                  name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "0sdyqwydmdnh7j6mn74vrywz35m416kqsbxbrqcnv5ak08y6xxwm"))))
+    (build-system python-build-system)
+    (native-inputs
+     `(("intltool" ,intltool)
+       ("glib:bin" ,glib "bin")                   ; for glib-compile-resources
+       ("gettext" ,gettext-minimal)
+       ("pkg-config" ,pkg-config)))
+    (inputs
+     `(("cairo" ,cairo)
+       ("gobject-introspection" ,gobject-introspection)
+       ("python2-pycairo" ,python2-pycairo)
+       ("python2-pygobject" ,python2-pygobject)
+       ("python2-psutil" ,python2-psutil)
+       ("vte" ,vte)))
+    (arguments
+     `(#:python ,python-2                          ;Python 3 not supported
+       #:phases
+       (modify-phases %standard-phases
+         (add-after
+          'install 'wrap-program
+          (lambda* (#:key outputs #:allow-other-keys)
+            (let ((prog (string-append (assoc-ref outputs "out")
+                                       "/bin/terminator")))
+              (wrap-program prog
+                `("PYTHONPATH" = (,(getenv "PYTHONPATH")))
+                `("GI_TYPELIB_PATH" = (,(getenv "GI_TYPELIB_PATH"))))
+              #t))))))
+    (home-page "https://gnometerminator.blogspot.com/")
+    (synopsis "Store and run multiple GNOME terminals in one window")
+    (description
+     "Terminator allows you to run multiple GNOME terminals in a grid and
++tabs, and it supports drag and drop re-ordering of terminals.")
+    (license license:gpl2)))
diff --git a/gnu/packages/gnucash.scm b/gnu/packages/gnucash.scm
index 5b4da97e5d..2196a8c50a 100644
--- a/gnu/packages/gnucash.scm
+++ b/gnu/packages/gnucash.scm
@@ -54,7 +54,7 @@
   ;; directory.
   (package
     (name "gnucash")
-    (version "3.4")
+    (version "3.5")
     (source
      (origin
        (method url-fetch)
@@ -62,8 +62,7 @@
                            version "/gnucash-" version ".tar.bz2"))
        (sha256
         (base32
-         "1ms2wg4sh5gq3rpjmmnp85rh5nc9ahca1imxkvhz4d3yiwy8hm52"))
-       (patches (search-patches "gnucash-fix-test-transaction-failure.patch"))))
+         "0ibp7g6aknvnkwkin97kv04ipksy3l18dsz9qysjb7h2nr8hnvbp"))))
     (build-system cmake-build-system)
     (inputs
      `(("guile" ,guile-2.2)
@@ -197,7 +196,7 @@ installed as well as Yelp, the Gnome help browser.")
 ;; This package is not public, since we use it to build the "doc" output of
 ;; the gnucash package (see above).  It would be confusing if it were public.
 (define gnucash-docs
-  (let ((revision "a"))              ;set to the empty string when no revision
+  (let ((revision ""))              ;set to the empty string when no revision
     (package
       (name "gnucash-docs")
       (version (package-version gnucash))
@@ -208,7 +207,7 @@ installed as well as Yelp, the Gnome help browser.")
                              version "/gnucash-docs-" version revision ".tar.gz"))
          (sha256
           (base32
-           "0bgjxpxgk7hy8ihn1kvd8p6vv191q5md2hz6jb9mqc4aykpvdlq7"))))
+           "0gjndyms413vilf5nqh39frs1691sxib8l7y9mbvcyirj1f8285k"))))
       (build-system gnu-build-system)
       ;; These are native-inputs because they are only required for building the
       ;; documentation.
diff --git a/gnu/packages/gnupg.scm b/gnu/packages/gnupg.scm
index 230df101d5..189ad7740a 100644
--- a/gnu/packages/gnupg.scm
+++ b/gnu/packages/gnupg.scm
@@ -232,14 +232,14 @@ compatible to GNU Pth.")
 (define-public gnupg
   (package
     (name "gnupg")
-    (version "2.2.15")
+    (version "2.2.16")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnupg/gnupg/gnupg-" version
                                   ".tar.bz2"))
               (sha256
                (base32
-                "0m6lyphbb20i84isdxzfhcbzyc682hdrdv4aqkzmhrdksycf536b"))))
+                "1jqlzp9b3kpfp1dkjqskm67jjrhvf9nh3lzf45321p7m9d2qvgkc"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)))
diff --git a/gnu/packages/gnuzilla.scm b/gnu/packages/gnuzilla.scm
index 825678bfc6..c2356f2a44 100644
--- a/gnu/packages/gnuzilla.scm
+++ b/gnu/packages/gnuzilla.scm
@@ -426,7 +426,7 @@ from forcing GEXP-PROMISE."
                       #:system system
                       #:guile-for-build guile)))
 
-(define %icecat-version "60.7.0-guix1")
+(define %icecat-version "60.7.0-guix2")
 
 ;; 'icecat-source' is a "computed" origin that generates an IceCat tarball
 ;; from the corresponding upstream Firefox ESR tarball, using the 'makeicecat'
@@ -450,7 +450,7 @@ from forcing GEXP-PROMISE."
              (base32
               "08x0nijh0ja5jza95a8y030ibk756bn7zlw3a3c4750yilfhqpqa"))))
 
-         (upstream-icecat-base-version "60.3.0") ; maybe older than base-version
+         (upstream-icecat-base-version "60.7.0") ; maybe older than base-version
          (upstream-icecat-gnu-version "1")
          (upstream-icecat-version (string-append upstream-icecat-base-version
                                                  "-gnu"
@@ -463,7 +463,7 @@ from forcing GEXP-PROMISE."
                   "/icecat-" upstream-icecat-version ".tar.bz2"))
             (sha256
              (base32
-              "0icnl64nxcyf7dprpdpygxhabsvyhps8c3ixysj9bcdlj9q34ib1"))))
+              "09xqdfd8rwbn2n6m7n059qf1psbrj5v5kfzm7gg5xng22ddxawv8"))))
 
          (gnuzilla-commit (string-append "v" upstream-icecat-base-version))
          (gnuzilla-source
@@ -475,7 +475,7 @@ from forcing GEXP-PROMISE."
             (file-name (git-file-name "gnuzilla" upstream-icecat-base-version))
             (sha256
              (base32
-              "19wal7hkbb4wvk40hs6d7a5paal2bfday08hwssm02srcbv48fj0"))))
+              "1vqhb0py28hnwcynbaad304ziciz1kn5bv1qg2q4f7g13js3b1hf"))))
 
          (makeicecat-patch
           (local-file (search-patch "icecat-makeicecat.patch"))))
@@ -545,10 +545,6 @@ from forcing GEXP-PROMISE."
                                     #$upstream-icecat-gnu-version "\n"))
                     (("^DATA=.*")
                      "DATA=/tmp/gnuzilla/data\n")
-                    (("^sed .* debian/" all)
-                     (string-append "echo warning: skipped: " all))
-                    (("^debian/rules " all)
-                     (string-append "echo warning: skipped: " all))
                     (("^find extensions/gnu/ ")
                      "find extensions/gnu/ | sort ")
                     (("/bin/sed")
@@ -560,21 +556,19 @@ from forcing GEXP-PROMISE."
                 (rename-file firefox-dir icecat-dir)
 
                 (with-directory-excursion icecat-dir
-                  (for-each mkdir-p '("l10n" "debian/config"))
-                  (call-with-output-file "debian/control" (const #t))
+                  (mkdir "l10n")
                   (format #t "Running makeicecat script...~%")
                   (force-output)
                   (invoke "bash" "/tmp/gnuzilla/makeicecat")
-                  (for-each delete-file-recursively '("l10n" "debian")))
+                  (delete-file-recursively "l10n"))
 
-                (format #t (string-append "Unpacking l10n/* and debian/* from"
+                (format #t (string-append "Unpacking l10n/* from"
                                           " upstream IceCat tarball...~%"))
                 (force-output)
                 (unless (string=? icecat-dir old-icecat-dir)
                   (symlink icecat-dir old-icecat-dir))
                 (invoke "tar" "xf" #+upstream-icecat-source
-                        (string-append old-icecat-dir "/l10n")
-                        (string-append old-icecat-dir "/debian"))
+                        (string-append old-icecat-dir "/l10n"))
 
                 (format #t "Packing new IceCat tarball...~%")
                 (force-output)
@@ -899,43 +893,16 @@ from forcing GEXP-PROMISE."
          (add-before 'configure 'install-desktop-entry
            (lambda* (#:key outputs #:allow-other-keys)
              ;; Install the '.desktop' file.
-             (define (swallow-%%-directives input output)
-               ;; Interpret '%%ifdef' directives found in the '.desktop' file.
-               (let loop ((state 'top))
-                 (match (read-line input 'concat)
-                   ((? eof-object?)
-                    #t)
-                   ((? string? line)
-                    (cond ((string-prefix? "%%ifdef" line)
-                           (loop 'ifdef))
-                          ((string-prefix? "%%else" line)
-                           (loop 'else))
-                          ((string-prefix? "%%endif" line)
-                           (loop 'top))
-                          (else
-                           (case state
-                             ((top else)
-                              (display line output)
-                              (loop state))
-                             (else
-                              (loop state)))))))))
-
-             (let* ((out (assoc-ref outputs "out"))
+             (let* ((desktop-file "taskcluster/docker/icecat-snap/icecat.desktop")
+                    (out          (assoc-ref outputs "out"))
                     (applications (string-append out "/share/applications")))
-               (call-with-input-file "debian/icecat.desktop.in"
-                 (lambda (input)
-                   (call-with-output-file "debian/icecat.desktop"
-                     (lambda (output)
-                       (swallow-%%-directives input output)))))
-
-               (substitute* "debian/icecat.desktop"
-                 (("@MOZ_DISPLAY_NAME@")
-                  "GNU IceCat")
-                 (("^Exec=@MOZ_APP_NAME@")
-                  (string-append "Exec=" out "/bin/icecat"))
-                 (("@MOZ_APP_NAME@")
-                  "icecat"))
-               (install-file "debian/icecat.desktop" applications)
+               (substitute* desktop-file
+                 (("^Exec=icecat")     (string-append "Exec=" out "/bin/icecat"))
+                 (("IceCat")           "GNU IceCat")
+                 (("Icon=.*")          "Icon=icecat\n")
+                 (("NewWindow")        "new-window")
+                 (("NewPrivateWindow") "new-private-window"))
+               (install-file desktop-file applications)
                #t)))
          (add-after 'install-desktop-entry 'install-icons
            (lambda* (#:key outputs #:allow-other-keys)
diff --git a/gnu/packages/golang.scm b/gnu/packages/golang.scm
index ed0a78c6bd..2f5396dd1e 100644
--- a/gnu/packages/golang.scm
+++ b/gnu/packages/golang.scm
@@ -14,6 +14,7 @@
 ;;; Copyright © 2018 Pierre Neidhardt <mail@ambrevar.xyz>
 ;;; Copyright @ 2018, 2019 Katherine Cox-Buday <cox.katherine.e@gmail.com>
 ;;; Copyright @ 2019 Giovanni Biscuolo <g@xelera.eu>
+;;; Copyright @ 2019 Alex Griffin <a@ajgrf.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -61,14 +62,16 @@
 (define-public go-1.4
   (package
     (name "go")
-    (version "1.4.3")
+    ;; The C-language bootstrap of Go:
+    ;; https://golang.org/doc/install/source#go14
+    (version "1.4-bootstrap-20171003")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://storage.googleapis.com/golang/"
-                                  name version ".src.tar.gz"))
+                                  name version ".tar.gz"))
               (sha256
                (base32
-                "0na9yqilzpvq0bjndbibfp07wr796gf252y471cip10bbdqgqiwr"))))
+                "0liybk5z00hizsb5ypkbhqcawnwwa6mkwgvjjg4y3jm3ndg5pzzl"))))
     (build-system gnu-build-system)
     (outputs '("out"
                "doc"
@@ -135,13 +138,6 @@
                   ("os/os_test.go" "(.+)(TestHostname.+)")
                   ("time/format_test.go" "(.+)(TestParseInSydney.+)")
 
-                  ;; Tzdata 2016g changed the name of the time zone used in this
-                  ;; test, and the patch for Go 1.7 does not work for 1.4.3:
-                  ;; https://github.com/golang/go/issues/17545
-                  ;; https://github.com/golang/go/issues/17276
-                  ("time/time_test.go" "(.+)(TestLoadFixed.+)")
-                  ("time/format_test.go" "(.+)(TestParseInLocation.+)")
-
                   ("os/exec/exec_test.go" "(.+)(TestEcho.+)")
                   ("os/exec/exec_test.go" "(.+)(TestCommandRelativeName.+)")
                   ("os/exec/exec_test.go" "(.+)(TestCatStdin.+)")
@@ -168,9 +164,7 @@
                (setenv "GOOS" "linux")
                (setenv "GOROOT" (dirname (getcwd)))
                (setenv "GOROOT_FINAL" output)
-               ;; Go 1.4's cgo will not work with binutils >= 2.27:
-               ;; https://github.com/golang/go/issues/16906
-               (setenv "CGO_ENABLED" "0")
+               (setenv "GO14TESTS" "1")
                (invoke "sh" "all.bash"))))
 
          (replace 'install
@@ -1920,7 +1914,7 @@ values.")
 (define-public go-github-com-mattn-go-isatty
   (package
     (name "go-github-com-mattn-go-isatty")
-    (version "0.0.4")
+    (version "0.0.7")
     (source
      (origin
        (method git-fetch)
@@ -1930,8 +1924,10 @@ values.")
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "0zs92j2cqaw9j8qx1sdxpv3ap0rgbs0vrvi72m40mg8aa36gd39w"))))
+         "1i77aq4gf9as03m8fpfh8fq49n4z9j7548blrcsidm1xhslzk5xd"))))
     (build-system go-build-system)
+    (propagated-inputs
+     `(("go-golang-org-x-sys-unix" ,go-golang-org-x-sys-unix)))
     (arguments
      '(#:import-path "github.com/mattn/go-isatty"))
     (home-page "https://github.com/mattn/go-isatty")
diff --git a/gnu/packages/gpodder.scm b/gnu/packages/gpodder.scm
index badb7f867f..7c9994f128 100644
--- a/gnu/packages/gpodder.scm
+++ b/gnu/packages/gpodder.scm
@@ -36,7 +36,7 @@
 (define-public gpodder
   (package
     (name "gpodder")
-    (version "3.10.7")
+    (version "3.10.9")
     (source
      (origin
        (method git-fetch)
@@ -45,7 +45,7 @@
              (commit version)))
        (sha256
         (base32
-         "0sx9rj6dpvd2xz7lak2yi0zlgr3lp2ng1fw23s39la9ly4g1835j"))
+         "1sdmr1sq1d4p492zp9kq3npl7p56yr0pr470z9r6xxcylax5mhfq"))
        (file-name (git-file-name name version))))
     (build-system python-build-system)
     (native-inputs
@@ -81,12 +81,12 @@
              (for-each
                (lambda (f)
                  (chmod f #o664))
-               (find-files "po"))))
+               (find-files "po"))
+             #t))
          (replace 'install
            (lambda* (#:key outputs #:allow-other-keys)
              (setenv "PREFIX" (assoc-ref outputs "out"))
-             (invoke "make" "install")
-             #t))
+             (invoke "make" "install")))
          (add-after 'install 'wrap-gpodder
            (lambda* (#:key outputs #:allow-other-keys)
              (let ((out (assoc-ref outputs "out"))
diff --git a/gnu/packages/gps.scm b/gnu/packages/gps.scm
index 66e091ddbf..75212ed60e 100644
--- a/gnu/packages/gps.scm
+++ b/gnu/packages/gps.scm
@@ -175,16 +175,16 @@ coordinates as well as partial support for adjustments in global coordinate syst
 (define-public gpxsee
   (package
     (name "gpxsee")
-    (version "4.19")
+    (version "7.8")
     (source (origin
-              (method url-fetch)
-              (uri
-               (string-append "https://github.com/tumic0/GPXSee/archive/"
-                              version ".tar.gz"))
-              (file-name (string-append name "-" version ".tar.gz"))
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/tumic0/GPXSee")
+                    (commit version)))
+              (file-name (git-file-name name version))
               (sha256
                (base32
-                "00j0gjldw1kn3i45dppld1pz8r4s1g7lw89k7gfvvqbjjyjih1wg"))))
+                "1ymqz4wrl9ghkyyqi2vrnlyvz3fc84s3p8a1dkiqlvyvj360ck9j"))))
     (build-system gnu-build-system)
     (arguments
      '(#:phases
@@ -195,27 +195,16 @@ coordinates as well as partial support for adjustments in global coordinate syst
              (for-each (lambda (file)
                          (invoke "lrelease" file))
                        (find-files "lang" "\\.ts"))
-             (substitute* "src/config.h"
-               (("/usr/share/gpxsee")
-                (string-append
-                 (assoc-ref outputs "out") "/share/gpxsee")))
              (invoke "qmake"
                      (string-append "PREFIX="
-                                    (assoc-ref outputs "out")))))
-         (replace 'install
-           (lambda* (#:key outputs #:allow-other-keys)
-             (let* ((out (assoc-ref outputs "out"))
-                    (share (string-append out "/share/gpxsee/")))
-               (install-file "GPXSee" (string-append out "/bin/GPXSee"))
-               (install-file "pkg/maps.txt" share))
-             #t)))))
+                                    (assoc-ref outputs "out"))))))))
     (inputs
      `(("qtbase" ,qtbase)))
     (native-inputs
      `(("qttools" ,qttools)))
-    (home-page "http://www.gpxsee.org")
-    (synopsis "GPX file viewer and analyzer")
+    (home-page "https://www.gpxsee.org")
+    (synopsis "GPS log file viewer and analyzer")
     (description
-     "GPXSee is a Qt-based GPS log file viewer and analyzer that supports GPX,
-TCX, KML, FIT, IGC and NMEA files.")
+     "GPXSee is a Qt-based GPS log file viewer and analyzer that supports
+all common GPS log file formats.")
     (license license:gpl3)))
diff --git a/gnu/packages/gtk.scm b/gnu/packages/gtk.scm
index f05da01f7a..4fb7d3579b 100644
--- a/gnu/packages/gtk.scm
+++ b/gnu/packages/gtk.scm
@@ -348,7 +348,10 @@ diagrams.")
                                   name "-" version ".tar.bz2"))
               (sha256
                (base32
-                "07hrabhpl6n8ajz10s0d960jdwndxs87szxyn428mpxi8cvpg1f5"))))
+                "07hrabhpl6n8ajz10s0d960jdwndxs87szxyn428mpxi8cvpg1f5"))
+              (patches
+                (search-patches
+                  "gtksourceview-2-add-default-directory.patch"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("intltool" ,intltool)
diff --git a/gnu/packages/guile-xyz.scm b/gnu/packages/guile-xyz.scm
index 365f909c2c..191f32c321 100644
--- a/gnu/packages/guile-xyz.scm
+++ b/gnu/packages/guile-xyz.scm
@@ -9,7 +9,7 @@
 ;;; Copyright © 2016, 2017 Alex Kost <alezost@gmail.com>
 ;;; Copyright © 2016, 2017 Adonay "adfeno" Felipe Nogueira <https://libreplanet.org/wiki/User:Adfeno> <adfeno@openmailbox.org>
 ;;; Copyright © 2016 Amirouche <amirouche@hypermove.net>
-;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
+;;; Copyright © 2016, 2019 Jan Nieuwenhuizen <janneke@gnu.org>
 ;;; Copyright © 2017 Andy Wingo <wingo@igalia.com>
 ;;; Copyright © 2017 David Thompson <davet@gnu.org>
 ;;; Copyright © 2017, 2018 Mathieu Othacehe <m.othacehe@gmail.com>
@@ -53,8 +53,10 @@
   #:use-module (gnu packages gawk)
   #:use-module (gnu packages gettext)
   #:use-module (gnu packages gl)
+  #:use-module (gnu packages glib)
   #:use-module (gnu packages gnome)
   #:use-module (gnu packages gperf)
+  #:use-module (gnu packages gtk)
   #:use-module (gnu packages guile)
   #:use-module (gnu packages hurd)
   #:use-module (gnu packages image)
@@ -66,6 +68,7 @@
   #:use-module (gnu packages multiprecision)
   #:use-module (gnu packages ncurses)
   #:use-module (gnu packages networking)
+  #:use-module (gnu packages noweb)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages python)
@@ -73,14 +76,17 @@
   #:use-module (gnu packages sdl)
   #:use-module (gnu packages slang)
   #:use-module (gnu packages sqlite)
+  #:use-module (gnu packages tex)
   #:use-module (gnu packages texinfo)
   #:use-module (gnu packages tls)
   #:use-module (gnu packages version-control)
+  #:use-module (gnu packages webkit)
   #:use-module (gnu packages xdisorg)
   #:use-module (gnu packages xorg)
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix git-download)
+  #:use-module (guix hg-download)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system guile)
   #:use-module (guix utils)
@@ -2232,3 +2238,150 @@ slashes are present and accounted for, resolving @code{.} and @code{..}, etc).
 Inevitably, you have to break the string up into chunks and operate on that
 list of components.  This module takes care of that for you.")
     (license license:lgpl3+)))
+
+(define-public guile-gi
+  (let ((commit "26e885219ae6b31a83766564a2ecfe8c4532346f")
+        (revision "1"))
+    (package
+      (name "guile-gi")
+      (version (string-append "0.0.1-" revision "." (string-take commit 7)))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/spk121/guile-gi.git")
+                      (commit commit)))
+                (file-name (string-append name "-" version))
+                (sha256
+                 (base32
+                  "1prbzhr4sqqihb34l6yfrz6sd8nghwd3q9wvbm36jnl2n3z2nxj8"))))
+      (build-system gnu-build-system)
+      (native-inputs `(("autoconf" ,autoconf)
+                       ("automake" ,automake)
+                       ("gettext" ,gnu-gettext)
+                       ("libtool" ,libtool)
+                       ("pkg-config" ,pkg-config)
+                       ("texinfo" ,texinfo)))
+      (propagated-inputs `(("glib" ,glib)
+                           ("gobject-introspection" ,gobject-introspection)
+                           ("gssettings-desktop-schemas" ,gsettings-desktop-schemas)
+                           ("gtk+" ,gtk+)
+                           ("guile-lib" ,guile-lib)
+                           ("webkitgtk" ,webkitgtk)))
+      (inputs `(("guile" ,guile-2.2)))
+      (arguments
+       `(#:configure-flags '("--with-gnu-filesystem-hierarchy")))
+      (home-page "https://github.com/spk121/guile-gi")
+      (synopsis "GObject bindings for Guile")
+      (description
+       "Guile-GI is a library for Guile that allows using GObject-based
+libraries, such as GTK+3.  Its README comes with the disclaimer: This is
+pre-alpha code.")
+      (license license:gpl3+))))
+
+(define-public guile-srfi-159
+  (let ((commit "1bd98abda2ae4ef8f36761a167903e55c6bda7bb")
+        (revision "0"))
+    (package
+      (name "guile-srfi-159")
+      (version (git-version "0" revision commit))
+      (home-page "https://bitbucket.org/bjoli/guile-srfi-159")
+      (source (origin
+                (method hg-fetch)
+                (uri (hg-reference (changeset commit)
+                                   (url home-page)))
+                (sha256
+                 (base32
+                  "1zw6cmcy7xdbfiz3nz9arqnn7l2daidaps6ixkcrc9b6k51fdv3p"))
+                (file-name (git-file-name name version))))
+      (build-system guile-build-system)
+      (arguments
+       ;; The *-impl.scm files are actually included from module files; they
+       ;; should not be compiled separately, but they must be installed.
+       '(#:not-compiled-file-regexp "-impl\\.scm$"))
+      (inputs
+       `(("guile" ,guile-2.2)))
+      (synopsis "Formatting combinators for Guile")
+      (description
+       "The @code{(srfi-159)} module and its sub-modules implement the
+formatting combinators specified by
+@uref{https://srfi.schemers.org/srfi-159/srfi-159.html, SRFI-159}.  These are
+more expressive and flexible than the traditional @code{format} procedure.")
+      (license license:bsd-3))))
+
+(define-public emacsy
+  (let ((commit "7d49cc1425d5d209bdb82cac0d8ea0694b8b3784")
+        (revision "4"))
+    (package
+      (name "emacsy")
+      (version (string-append "0.1.2-" revision "." (string-take commit 7)))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://gitlab.com/janneke/emacsy.git")
+                      (commit commit)))
+                (file-name (string-append name "-" version))
+                (sha256
+                 (base32
+                  "0k9yns1v8zn135w60sx96nqs2bm2p2dvcvlm987hkw4lbff9ii6i"))))
+      (build-system gnu-build-system)
+      (native-inputs
+       `(("emacsy-webkit-gtk"
+          ,(origin
+             (method git-fetch)
+             (uri (git-reference
+                   (url "https://gitlab.com/janneke/emacsy-webkit-gtk.git")
+                   (commit "35ded1b3e997fd779a17e0c4a2c73741718562d9")))
+             (file-name (string-append "emacsy-webkit-gtk" "-" version))
+             (sha256
+              (base32
+               "1gp0li2rbp6in926r3hrww6cnh864pp46v1din2pgmd7vzzl7kg0"))))
+         ("hello-emacsy"
+          ,(origin
+             (method git-fetch)
+             (uri (git-reference
+                   (url "https://gitlab.com/janneke/hello-emacsy.git")
+                   (commit "2c117e5286a261be4ff24938f3ae1d348396c538")))
+             (file-name (string-append "hello-emacsy" "-" version))
+             (sha256
+              (base32
+               "15ykd7s8axcy8ym4v71fgal4x28fxnim0pv0jmpi3dnhizr63zqn"))))
+         ("autoconf" ,autoconf)
+         ("automake" ,automake)
+         ("bzip2" ,bzip2)
+         ("guile" ,guile-2.2)
+         ("gettext" ,gnu-gettext)
+         ("libtool" ,libtool)
+         ("noweb" ,noweb)
+         ("perl" ,perl)
+         ("pkg-config" ,pkg-config)
+         ("texinfo" ,texinfo)
+         ("texlive" ,texlive)))
+      (propagated-inputs
+       `(("guile-lib" ,guile-lib)
+         ("guile-readline" ,guile-readline)
+         ("freeglut" ,freeglut)
+         ("gssettings-desktop-schemas" ,gsettings-desktop-schemas)
+         ("webkitgtk" ,webkitgtk)))
+      (inputs `(("guile" ,guile-2.2)))
+      (arguments
+       `(#:phases
+         (modify-phases %standard-phases
+           (add-after 'unpack 'unpack-examples
+             (lambda _
+               (copy-recursively (assoc-ref %build-inputs "emacsy-webkit-gtk")
+                                 "example/emacsy-webkit-gtk")
+               (copy-recursively (assoc-ref %build-inputs "hello-emacsy")
+                                 "example/hello-emacsy")))
+           (add-before 'configure 'setenv
+             (lambda _
+               (setenv "GUILE_AUTO_COMPILE" "0"))))))
+      (home-page "https://github.com/shanecelis/emacsy/")
+      (synopsis "Embeddable GNU Emacs-like library using Guile")
+      (description
+       "Emacsy is an embeddable GNU Emacs-like library that uses GNU Guile
+as extension language.  Emacsy can give a C program an Emacsy feel with
+keymaps, minibuffer, recordable macros, history, tab completion, major
+and minor modes, etc., and can also be used as a pure Guile library.  It
+comes with a simple counter example using GLUT and browser examples in C
+using gtk+-3 and webkitgtk.")
+      (license license:gpl3+))))
diff --git a/gnu/packages/haskell-web.scm b/gnu/packages/haskell-web.scm
index 4ce5d6fdb1..6b7103562f 100644
--- a/gnu/packages/haskell-web.scm
+++ b/gnu/packages/haskell-web.scm
@@ -5,6 +5,7 @@
 ;;; Copyright © 2016 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2017 rsiddharth <s@ricketyspace.net>
 ;;; Copyright © 2017 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2019 Robert Vollmert <rob@vllmrt.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -118,7 +119,7 @@ requests, and the library is intended for implementing Ajax APIs.")
 (define-public ghc-http-types
   (package
     (name "ghc-http-types")
-    (version "0.12.1")
+    (version "0.12.3")
     (source
      (origin
        (method url-fetch)
@@ -126,7 +127,7 @@ requests, and the library is intended for implementing Ajax APIs.")
                            "http-types-" version ".tar.gz"))
        (sha256
         (base32
-         "1wv9k6nlvkdsxwlr7gaynphvzmvi5211gvwq96mbcxgk51a739rz"))))
+         "05j00b9nqmwh9zaq9y9x50k81v2pd3j7a71kd91zlnbl8xk4m2jf"))))
     (build-system haskell-build-system)
     (native-inputs
      `(("ghc-doctest" ,ghc-doctest)
@@ -136,7 +137,6 @@ requests, and the library is intended for implementing Ajax APIs.")
        ("hspec-discover" ,hspec-discover)))
     (inputs
      `(("ghc-case-insensitive" ,ghc-case-insensitive)
-       ("ghc-blaze-builder" ,ghc-blaze-builder)
        ("ghc-text" ,ghc-text)))
     (home-page "https://github.com/aristidb/http-types")
     (synopsis "Generic HTTP types for Haskell")
@@ -550,7 +550,7 @@ transfers.")
 (define-public ghc-warp
   (package
     (name "ghc-warp")
-    (version "3.2.23")
+    (version "3.2.27")
     (source
      (origin
        (method url-fetch)
@@ -558,8 +558,7 @@ transfers.")
                            "warp-" version "/" "warp-" version
                            ".tar.gz"))
        (sha256
-        (base32
-         "12v9qhi4hyp0sb90yddsax16jj7x47nmqwn53sv7b5nszcxgzam0"))))
+        (base32 "0p2w88q0zd55ms20qylipbi0qzbf324i9r8b9qqxyds5yc1anq76"))))
     (build-system haskell-build-system)
     (inputs
      `(("ghc-async" ,ghc-async)
diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index 33c9c6484d..97b4fd9a55 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -17,6 +17,7 @@
 ;;; Copyright © 2018, 2019 Timothy Sample <samplet@ngyro.com>
 ;;; Copyright © 2018 Arun Isaac <arunisaac@systemreboot.net>
 ;;; Copyright © 2018, 2019 Gabriel Hondet <gabrielhondet@gmail.com>
+;;; Copyright © 2019 Robert Vollmert <rob@vllmrt.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -1325,6 +1326,16 @@ postfix notation.  For more information on stack based languages, see
         (base32
          "138xpxdb7x62lpmgmb6b3v3vgdqqvqn4273jaap3mjmc2gla709y"))))
     (build-system haskell-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'skip-test-issue93
+           (lambda _
+             ;; Tests run out of memory on a system with 2GB of available RAM,
+             ;; in 'issue93.a.hs' and 'issue93.n.hs'.
+             (substitute* "tests/Makefile"
+               ((" issue93.y ") " "))
+             #t)))))
     (home-page "https://hackage.haskell.org/package/happy")
     (synopsis "Parser generator for Haskell")
     (description "Happy is a parser generator for Haskell.  Given a grammar
@@ -1794,7 +1805,7 @@ version 1.3).")
 (define-public ghc-streaming-commons
   (package
     (name "ghc-streaming-commons")
-    (version "0.2.1.0")
+    (version "0.2.1.1")
     (source
      (origin
        (method url-fetch)
@@ -1803,7 +1814,7 @@ version 1.3).")
                            version ".tar.gz"))
        (sha256
         (base32
-         "13fn6qmpiggwpn8lczyydgp77cyzfypwds7wxskrwir4i5cgxlfq"))))
+         "1lmyx3wkjsayhy5yilzvy0kf8qwmycwlk26r1d8f3cxbfhkr7s52"))))
     (build-system haskell-build-system)
     (inputs
      `(("ghc-async" ,ghc-async)
@@ -6941,7 +6952,7 @@ upon it.")
 (define-public ghc-conduit-extra
   (package
     (name "ghc-conduit-extra")
-    (version "1.3.0")
+    (version "1.3.1.1")
     (source
      (origin
        (method url-fetch)
@@ -6950,7 +6961,7 @@ upon it.")
                            version ".tar.gz"))
        (sha256
         (base32
-         "1bi2b6kdzy5f9glq46jzsk02has95jkxqz0cchpbmnakzhjwjh9c"))))
+         "0jaj350vv6mbb26gdwcqz4gwzfzrjydv5pis2da49wz1npbakcfw"))))
     (build-system haskell-build-system)
     (inputs
      `(("ghc-conduit" ,ghc-conduit)
diff --git a/gnu/packages/image-viewers.scm b/gnu/packages/image-viewers.scm
index 82b44a4900..a5bfb28a88 100644
--- a/gnu/packages/image-viewers.scm
+++ b/gnu/packages/image-viewers.scm
@@ -9,6 +9,7 @@
 ;;; Copyright © 2017 nee <nee-git@hidamari.blue>
 ;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2019 Nicolas Goaziou <mail@nicolasgoaziou.fr>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -429,3 +430,50 @@ imaging.  It supports several HDR and LDR image formats, and it can:
 a comic and manga reader.  It supports a variety of container formats
 including CBZ, CB7, CBT, LHA.")
     (license license:gpl2+)))
+
+(define-public qview
+  (package
+    (name "qview")
+    (version "2.0")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/jurplel/qView.git")
+                    (commit version)))
+              (sha256
+               (base32
+                "1s29hz44rb5dwzq8d4i4bfg77dr0v3ywpvidpa6xzg7hnnv3mhi5"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (replace 'configure
+           (lambda _
+             (invoke "qmake")))
+         ;; Installation process hard-codes "/usr/bin", possibly
+         ;; prefixed.
+         (add-after 'configure 'fix-install-directory
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out")))
+               (substitute* "Makefile"
+                 (("\\$\\(INSTALL_ROOT\\)/usr") out))
+               #t)))
+         ;; Don't phone home or show "Checking for updates..." in the
+         ;; About menu.
+         (add-before 'build 'disable-auto-update
+           (lambda _
+             (substitute* "src/qvaboutdialog.cpp"
+               (("ui->updateLabel->setText\\(updateText\\);") "")
+               (("requestUpdates\\(\\);") ""))
+             #t)))))
+    (inputs
+     `(("qtbase" ,qtbase)
+       ("qtsvg" ,qtsvg)
+       ("qtimageformats" ,qtimageformats)))
+    (home-page "https://interversehq.com/qview/")
+    (synopsis "Convenient and minimal image viewer")
+    (description "qView is a Qt image viewer designed with visually
+minimalism and usability in mind.  Its features include animated GIF
+controls, file history, rotation/mirroring, and multithreaded
+preloading.")
+    (license license:gpl3+)))
diff --git a/gnu/packages/image.scm b/gnu/packages/image.scm
index c2aae10c87..eabb6aee41 100644
--- a/gnu/packages/image.scm
+++ b/gnu/packages/image.scm
@@ -1553,7 +1553,7 @@ identical visual appearance.")
 (define-public grim
   (package
    (name "grim")
-   (version "1.1")
+   (version "1.2.0")
    (source
     (origin
      (method git-fetch)
@@ -1562,7 +1562,7 @@ identical visual appearance.")
            (commit (string-append "v" version))))
      (file-name (git-file-name name version))
      (sha256
-      (base32 "1bcvkggqszcwy6hg8g4mch3yr25ic0baafbd90af5s5mrhrjxxxz"))))
+      (base32 "0brljl4zfbn5mh9hkfrfkvd27c5y9vdkgap9r1hrfy9r1x20sskn"))))
    (build-system meson-build-system)
    (native-inputs `(("pkg-config" ,pkg-config)))
    (inputs `(("cairo" ,cairo)
@@ -1579,7 +1579,7 @@ identical visual appearance.")
 (define-public slurp
   (package
    (name "slurp")
-   (version "1.0.1")
+   (version "1.2.0")
    (source
     (origin
      (method git-fetch)
@@ -1588,7 +1588,7 @@ identical visual appearance.")
            (commit (string-append "v" version))))
      (file-name (git-file-name name version))
      (sha256
-      (base32 "072lkwhpvr753wfqzmd994bnhbrgfavxcgqcyml7abab28sdhs1y"))))
+      (base32 "0580m6kaiilgsrcj608r837r37sl6a25y7w21p7d6ij20fs3gvg1"))))
    (build-system meson-build-system)
    (native-inputs `(("pkg-config" ,pkg-config)))
    (inputs `(("cairo" ,cairo)
diff --git a/gnu/packages/kawa.scm b/gnu/packages/kawa.scm
new file mode 100644
index 0000000000..5771eeda8e
--- /dev/null
+++ b/gnu/packages/kawa.scm
@@ -0,0 +1,53 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2019 Carlo Zancanaro <carlo@zancanaro.id.au>
+;;; Copyright © 2019 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages kawa)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (gnu packages java))
+
+(define-public kawa
+  (package
+    (name "kawa")
+    (version "3.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "mirror://gnu/kawa/kawa-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1k9qpydc64ar4aqyg3q7jmmxy503ayj85227qfhc5n6ngchqavhy"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:parallel-build? #f
+       #:parallel-tests? #f))
+    (inputs
+     `(("icedtea" ,icedtea-8 "jdk")))
+    (home-page "https://www.gnu.org/software/kawa/")
+    (synopsis "Java framework and implementation of Scheme, Elisp, and more")
+    (description
+     "GNU Kawa is an implementation of the Scheme programming language that
+is built on top of the Java platform.  It is thus conveniently integrated
+with Java and benefits from this by having a compiler, optional static
+typing, and so on.  Kawa also serves as a framework for implementing other
+programming languages on the Java platform.  Included in Kawa is qexo, a
+partial implementation of XQuery in Java.")
+    (license license:expat)))
diff --git a/gnu/packages/libevent.scm b/gnu/packages/libevent.scm
index 962a228e4b..01da7bad60 100644
--- a/gnu/packages/libevent.scm
+++ b/gnu/packages/libevent.scm
@@ -3,7 +3,7 @@
 ;;; Copyright © 2015, 2017 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2015 Eric Dvorsak <eric@dvorsak.fr>
 ;;; Copyright © 2016 David Thompson <davet@gnu.org>
-;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2017, 2019 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2017 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2019 Pierre Neidhardt <mail@ambrevar.xyz>
@@ -41,7 +41,7 @@
 (define-public libevent
   (package
     (name "libevent")
-    (version "2.1.8")
+    (version "2.1.10")
     (source (origin
              (method url-fetch)
              (uri (string-append
@@ -49,11 +49,7 @@
                    version "-stable/libevent-" version "-stable.tar.gz"))
              (sha256
               (base32
-               "1hhxnxlr0fsdv7bdmzsnhdz16fxf3jg2r6vyljcl3kj6pflcap4n"))
-             (patches (search-patches "libevent-2.1-dns-tests.patch"
-                                      ;; XXX: Try removing this for > 2.1.8.
-                                      ;; https://github.com/libevent/libevent/issues/452
-                                      "libevent-2.1-skip-failing-test.patch"))))
+               "1c25928gdv495clxk2v1d4gkr5py7ack4gx2n7d13frnld0syr78"))))
     (build-system gnu-build-system)
     (arguments
       ;; This skips some of the tests which fail on armhf and aarch64.
@@ -62,7 +58,7 @@
      `(("python" ,python-2)))           ; for 'event_rpcgen.py'
     (native-inputs
      `(("which" ,which)))
-    (home-page "http://libevent.org/")
+    (home-page "https://libevent.org/")
     (synopsis "Event notification library")
     (description
      "The libevent API provides a mechanism to execute a callback
@@ -76,27 +72,6 @@ then add or remove events dynamically without having to change the event
 loop.")
     (license bsd-3)))
 
-(define-public libevent-2.0
-  (package
-    (inherit libevent)
-    (version "2.0.22")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append
-                    "https://github.com/libevent/libevent/releases/download/release-"
-                    version "-stable/libevent-" version "-stable.tar.gz"))
-              (sha256
-               (base32
-                "18qz9qfwrkakmazdlwxvjmw8p76g70n3faikwvdwznns1agw9hki"))
-              (patches
-               (search-patches
-                "libevent-dns-tests.patch"
-                "libevent-2.0-CVE-2016-10195.patch"
-                "libevent-2.0-CVE-2016-10196.patch"
-                "libevent-2.0-CVE-2016-10197.patch"
-                "libevent-2.0-evbuffer-add-use-last-with-datap.patch"))))
-    (arguments '())))
-
 (define-public libev
   (package
     (name "libev")
@@ -154,19 +129,6 @@ resolution, asynchronous file system operations, and threading primitives.")
     ;; details.  Documentation is CC-BY 4.0 as of 1.12.0; see 'LICENSE-docs'.
     (license (list expat cc-by4.0))))
 
-;; This version is required for Node versions < 10.
-(define-public libuv-1.19
-  (package
-    (inherit libuv)
-    (version "1.19.2")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "https://dist.libuv.org/dist/v" version
-                                  "/libuv-v" version ".tar.gz"))
-              (sha256
-               (base32
-                "1msk9ac1z69whww88ibrwjqkd1apdla6l77cm2fwy5kigq0z5g3w"))))))
-
 (define-public perl-anyevent
   (package
     (name "perl-anyevent")
diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index 2e56e0034a..15473b06bd 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -34,6 +34,7 @@
 ;;; Copyright © 2018 Vasile Dumitrascu <va511e@yahoo.com>
 ;;; Copyright © 2019 Tim Gesthuizen <tim.gesthuizen@yahoo.de>
 ;;; Copyright © 2019 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2019 Stefan Stefanović <stefanx2ovic@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -143,6 +144,7 @@
           ((string-prefix? "alpha" arch) "alpha")
           ((string-prefix? "powerpc" arch) "powerpc") ;including "powerpc64le"
           ((string-prefix? "s390" arch) "s390")
+          ((string-prefix? "riscv" arch) "riscv")
           (else arch))))
 
 (define-public (system->defconfig system)
@@ -169,18 +171,20 @@ defconfig.  Return the appropriate make target if applicable, otherwise return
          "mirror://gnu/linux-libre/" version "-gnu/linux-libre-"
          version "-gnu.tar.xz")))
 
-(define-public linux-libre-headers
+(define (make-linux-libre-headers version hash)
   (package
     (name "linux-libre-headers")
-    (version "4.14.67")
+    (version version)
     (source (origin
              (method url-fetch)
              (uri (linux-libre-urls version))
-             (sha256
-              (base32
-               "050zvdxjy6sc64q75pr1gxsmh49chwav2pwxz8xlif39bvahnrpg"))))
+             (sha256 (base32 hash))))
     (build-system gnu-build-system)
-    (native-inputs `(("perl" ,perl)))
+    (native-inputs `(("perl" ,perl)
+                     ,@(if (version>=? version "4.16")
+                           `(("flex" ,flex)
+                             ("bison" ,bison))
+                           '())))
     (arguments
      `(#:modules ((guix build gnu-build-system)
                   (guix build utils)
@@ -246,7 +250,7 @@ defconfig.  Return the appropriate make target if applicable, otherwise return
           "/raw/34a7d9011fcfcfa38b68282fd2b1a8797e6834f0"
           "/debian/patches/bugfix/arm/"
           "arm-mm-export-__sync_icache_dcache-for-xen-privcmd.patch"))
-    (file-name "linux-libre-4.19-arm-export-__sync_icache_dcache.patch")
+    (file-name "linux-libre-arm-export-__sync_icache_dcache.patch")
     (sha256
      (base32 "1ifnfhpakzffn4b8n7x7w5cps9mzjxlkcfz9zqak2vaw8nzvl39f"))))
 
@@ -417,22 +421,26 @@ for ARCH and optionally VARIANT, or #f if there is no such configuration."
 It has been modified to remove all non-free binary blobs.")
     (license license:gpl2)))
 
-(define %linux-libre-version "5.1.4")
-(define %linux-libre-hash "02pzad29w2apcqsk4r4fq93539z3by8kvk1f59lb8xnl0gvhdi5v")
+(define %linux-libre-version "5.1.9")
+(define %linux-libre-hash "1l1nhq3giqyv7zir1sl8m32xbbpmqhsw8dgf90kf4qcnh6bvjin1")
 
 (define %linux-libre-5.1-patches
   (list %boot-logo-patch
         %linux-libre-arm-export-__sync_icache_dcache-patch))
 
-(define-public linux-libre
+(define-public linux-libre-5.1
   (make-linux-libre %linux-libre-version
                     %linux-libre-hash
                     '("x86_64-linux" "i686-linux" "armhf-linux" "aarch64-linux")
                     #:patches %linux-libre-5.1-patches
                     #:configuration-file kernel-config))
 
-(define %linux-libre-4.19-version "4.19.45")
-(define %linux-libre-4.19-hash "1wiy8vzpzzml4k76nv3ycjx7ky55x7dqx3mgpjqbh73mj2gcr5bx")
+(define-public linux-libre-headers-5.1
+  (make-linux-libre-headers %linux-libre-version
+                            %linux-libre-hash))
+
+(define %linux-libre-4.19-version "4.19.50")
+(define %linux-libre-4.19-hash "0j1p459al3y77cv2xwjx7ppghc8ixs3wm3w9a10sc3ckbq1hw8ly")
 
 (define %linux-libre-4.19-patches
   (list %boot-logo-patch
@@ -445,8 +453,12 @@ It has been modified to remove all non-free binary blobs.")
                     #:patches %linux-libre-4.19-patches
                     #:configuration-file kernel-config))
 
-(define %linux-libre-4.14-version "4.14.121")
-(define %linux-libre-4.14-hash "1g7gyjmp056pasf9m34dqs8pa15my6hqasdd551jw8mgkbhsfnxg")
+(define-public linux-libre-headers-4.19
+  (make-linux-libre-headers %linux-libre-4.19-version
+                            %linux-libre-4.19-hash))
+
+(define %linux-libre-4.14-version "4.14.125")
+(define %linux-libre-4.14-hash "1ms7ai7c6xspq8r2amgjfsdyl87x10dc4b1c3iacrhrxaqqmab01")
 
 (define-public linux-libre-4.14
   (make-linux-libre %linux-libre-4.14-version
@@ -454,15 +466,19 @@ It has been modified to remove all non-free binary blobs.")
                     '("x86_64-linux" "i686-linux" "armhf-linux")
                     #:configuration-file kernel-config))
 
+(define-public linux-libre-headers-4.14
+  (make-linux-libre-headers %linux-libre-4.14-version
+                            %linux-libre-4.14-hash))
+
 (define-public linux-libre-4.9
-  (make-linux-libre "4.9.178"
-                    "1ridlkymf382qnkc6hi07pkghrrxfv2avx55snjnkfcpdccvsmrb"
+  (make-linux-libre "4.9.181"
+                    "0fdqfd6z73q00nracrixliw0i0b60f4z352jmzabcwy431wszar5"
                     '("x86_64-linux" "i686-linux")
                     #:configuration-file kernel-config))
 
 (define-public linux-libre-4.4
-  (make-linux-libre "4.4.180"
-                    "157kfs4slii86q9yrspvqdynpiv6rff80hrrn569v6h4nkc4b7ag"
+  (make-linux-libre "4.4.181"
+                    "1ird78a3pg8k6h60258g56ka86jpgiaj0q9r2jws770qgrmy324l"
                     '("x86_64-linux" "i686-linux")
                     #:configuration-file kernel-config
                     #:extra-options
@@ -472,21 +488,28 @@ It has been modified to remove all non-free binary blobs.")
                        ("CONFIG_DEVPTS_MULTIPLE_INSTANCES" . #t))
                      %default-extra-linux-options)))
 
-(define-public linux-libre-arm-generic
+(define-public linux-libre-arm-veyron
   (make-linux-libre %linux-libre-version
                     %linux-libre-hash
                     '("armhf-linux")
                     #:patches %linux-libre-5.1-patches
-                    #:defconfig "multi_v7_defconfig"
-                    #:extra-version "arm-generic"))
+                    #:configuration-file kernel-config-veyron
+                    #:extra-version "arm-veyron"))
 
-(define-public linux-libre-arm-veyron
+(define-public linux-libre-headers-4.14.67
+  (make-linux-libre-headers "4.14.67"
+                            "050zvdxjy6sc64q75pr1gxsmh49chwav2pwxz8xlif39bvahnrpg"))
+
+(define-public linux-libre-headers linux-libre-headers-4.14.67)
+(define-public linux-libre linux-libre-5.1)
+
+(define-public linux-libre-arm-generic
   (make-linux-libre %linux-libre-version
                     %linux-libre-hash
                     '("armhf-linux")
                     #:patches %linux-libre-5.1-patches
-                    #:configuration-file kernel-config-veyron
-                    #:extra-version "arm-veyron"))
+                    #:defconfig "multi_v7_defconfig"
+                    #:extra-version "arm-generic"))
 
 (define-public linux-libre-arm-generic-4.19
   (make-linux-libre %linux-libre-4.19-version
@@ -526,28 +549,6 @@ It has been modified to remove all non-free binary blobs.")
                     #:defconfig "omap2plus_defconfig"
                     #:extra-version "arm-omap2plus"))
 
-(define-public vhba-module
-  (package
-    (name "vhba-module")
-    (version "20190410")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append
-                    "http://downloads.sourceforge.net/cdemu/vhba-module/vhba-module-"
-                    version ".tar.bz2"))
-              (sha256
-               (base32
-                "1513hq130raxp9z5grj54cwfjfxj05apipxg425j0zicii59a60c"))))
-    (build-system linux-module-build-system)
-    (arguments
-     ;; TODO: No tests?
-     `(#:tests? #f))
-    (home-page "https://cdemu.sourceforge.io/")
-    (synopsis "Kernel module that emulates SCSI devices")
-    (description "VHBA module provides a Virtual (SCSI) HBA, which is the link
-between the CDemu userspace daemon and linux kernel.")
-    (license license:gpl2+)))
-
 
 ;;;
 ;;; Linux kernel modules.
@@ -933,7 +934,7 @@ slabtop, and skill.")
 (define-public e2fsprogs
   (package
     (name "e2fsprogs")
-    (version "1.44.5")
+    (version "1.45.2")
     (source (origin
              (method url-fetch)
              (uri (string-append
@@ -942,7 +943,7 @@ slabtop, and skill.")
                    name "-" version ".tar.xz"))
              (sha256
               (base32
-               "1ff56h6h1h17sj2zvlddv5c88nmbx46p1fcbh6b0s5k9kl3b6pms"))))
+               "02g0cm72sgz709s9pkg4mvj56m7bgs7rwnyc2cp7cvg3j6pcjlj9"))))
     (build-system gnu-build-system)
     (inputs `(("util-linux" ,util-linux)))
     (native-inputs `(("pkg-config" ,pkg-config)
@@ -2535,7 +2536,7 @@ compliance.")
 (define-public wireless-regdb
   (package
     (name "wireless-regdb")
-    (version "2017.03.07")
+    (version "2019.06.03")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2543,7 +2544,7 @@ compliance.")
                     "wireless-regdb-" version ".tar.xz"))
               (sha256
                (base32
-                "1f9mcp78sdd4sci6v32vxfcl1rfjpv205jisz1p93kkfnaisy7ip"))
+                "1gslvh0aqdkv48jyr2ddq153mw28i7qz2ybrjj9qvkk3dgc7x4fd"))
 
               ;; We're building 'regulatory.bin' by ourselves.
               (snippet '(begin
@@ -2551,13 +2552,25 @@ compliance.")
                           #t))))
     (build-system gnu-build-system)
     (arguments
-     '(#:phases (modify-phases %standard-phases
-                  (add-after 'unpack 'gzip-determinism
-                    (lambda _
-                      (substitute* "Makefile"
-                        (("gzip") "gzip --no-name"))
-                      #t))
-                  (delete 'configure))
+     '(#:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'gzip-determinism
+           (lambda _
+             (substitute* "Makefile"
+               (("gzip") "gzip --no-name"))
+             #t))
+         (add-after 'unpack 'omit-signature
+           (lambda _
+             (substitute* "Makefile"
+               ;; Signing requires a REGDB_PUBCERT and REGDB_PRIVKEY which we
+               ;; don't provide (see below).  Disable it.
+               ((" regulatory\\.db\\.p7s") "")
+               ;; regulatory.db is built as a dependency of regulatory.db.p7s,
+               ;; but ‘make install’ depends only on the latter while installing
+               ;; both (and failing).  Depend on it explicitly.
+               (("^install: " all) (string-append all "regulatory.db ")))
+             #t))
+         (delete 'configure))  ; no configure script
 
        ;; The 'all' target of the makefile depends on $(REGDB_CHANGED), which
        ;; is computed and can be equal to 'maintainer-clean'; when that
@@ -2565,19 +2578,22 @@ compliance.")
        ;; just built.  Thus, build things sequentially.
        #:parallel-build? #f
 
-       #:tests? #f                                ;no tests
-       #:make-flags (let ((out (assoc-ref %outputs "out")))
-                      (list (string-append "PREFIX=" out)
-                            (string-append "LSB_ID=Guix")
-                            (string-append "DISTRO_PUBKEY=/dev/null")
-                            (string-append "DISTRO_PRIVKEY=/dev/null")
-                            (string-append "REGDB_PUBKEY=/dev/null")
-
-                            ;; Leave that empty so that db2bin.py doesn't try
-                            ;; to sign 'regulatory.bin'.  This allows us to
-                            ;; avoid managing a key pair for the whole distro.
-                            (string-append "REGDB_PRIVKEY=")))))
-    (native-inputs `(("python" ,python-2)))
+       #:tests? #f                      ; no tests
+       #:make-flags
+       (let ((out (assoc-ref %outputs "out")))
+         (list (string-append "PREFIX=" out)
+               (string-append "FIRMWARE_PATH=$(PREFIX)/lib/firmware")
+
+               ;; Leave this empty so that db2bin.py doesn't try to sign
+               ;; ‘regulatory.bin’.  This allows us to avoid managing a key
+               ;; pair for the whole distribution.
+               (string-append "REGDB_PRIVKEY=")
+               ;; Don't generate a public key for the same reason.  These are
+               ;; used as Makefile targets and can't be the empty string.
+               (string-append "REGDB_PUBCERT=/dev/null")
+               (string-append "REGDB_PUBKEY=/dev/null")))))
+    (native-inputs
+     `(("python" ,python-wrapper)))
     (home-page
      "https://wireless.wiki.kernel.org/en/developers/regulatory/wireless-regdb")
     (synopsis "Wireless regulatory database")
@@ -2860,12 +2876,16 @@ thanks to the use of namespaces.")
                   (substitute* "bin/singularity.in"
                     (("^PATH=.*" all)
                      (string-append "#" all "\n")))
+
+                  (substitute* (find-files "libexec/cli" "\\.exec$")
+                    (("\\$SINGULARITY_libexecdir/singularity/bin/([a-z]+)-suid"
+                      _ program)
+                     (string-append "/run/setuid-programs/singularity-"
+                                    program "-helper")))
                   #t))))
     (build-system gnu-build-system)
     (arguments
-     `(#:configure-flags
-       (list "--disable-suid"
-             "--localstatedir=/var")
+     `(#:configure-flags '("--localstatedir=/var")
        #:phases
        (modify-phases %standard-phases
          (add-after 'unpack 'patch-reference-to-squashfs-tools
@@ -4052,6 +4072,39 @@ Linux kernel to retrieve and control processor features related to power saving,
 such as frequency and voltage scaling.")
     (license license:gpl2)))
 
+(define-public x86-energy-perf-policy
+  (package
+    (name "x86-energy-perf-policy")
+    (version (package-version linux-libre))
+    (source (package-source linux-libre))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:tests? #f
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'enter-subdirectory
+           (lambda _
+             (chdir "tools/power/x86/x86_energy_perf_policy")
+             #t))
+         (delete 'configure)
+         (add-before 'build 'fix-makefile
+           (lambda _
+             (substitute* "Makefile" (("/usr") ""))
+             #t)))
+       #:make-flags
+       (let ((out (assoc-ref %outputs "out")))
+         (list (string-append "DESTDIR=" out)
+               (string-append "LDFLAGS=-Wl,-rpath=" out "/lib")))))
+    (supported-systems '("i686-linux" "x86_64-linux"))
+    (home-page (package-home-page linux-libre))
+    (synopsis "Display and update Intel-CPU energy-performance policy")
+    (description
+     "@command{x86_energy_perf_policy} displays and updates energy-performance
+policy settings specific to Intel Architecture Processors.  Settings are
+accessed via Model Specific Register (MSR) updates, no matter if the Linux
+cpufreq sub-system is enabled or not.")
+    (license license:gpl2)))
+
 (define-public haveged
   (package
     (name "haveged")
@@ -4329,15 +4382,16 @@ developers.")
 (define-public radeontop
   (package
     (name "radeontop")
-    (version "1.1")
-    (home-page "https://github.com/clbr/radeontop/")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append home-page "archive/v" version ".tar.gz"))
-              (file-name (string-append name "-" version ".tar.gz"))
-              (sha256
-               (base32
-                "1fv06j5c99imvzkac3j40lgjhr5b2i77fnyffhlvj92bli1fm1c6"))))
+    (version "1.2")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/clbr/radeontop.git")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "1b1m30r2nfwqkajqw6m01xmfhlq83z1qylyijxg7962mp9x2k0gw"))))
     (build-system gnu-build-system)
     (arguments
      `(#:phases (modify-phases %standard-phases
@@ -4361,6 +4415,7 @@ developers.")
        ("libpciaccess" ,libpciaccess)
        ("libxcb" ,libxcb)
        ("ncurses" ,ncurses)))
+    (home-page "https://github.com/clbr/radeontop/")
     (synopsis "Usage monitor for AMD Radeon graphics")
     (description "RadeonTop monitors resource consumption on supported AMD
 Radeon Graphics Processing Units (GPUs), either in real time as bar graphs on
@@ -4592,10 +4647,19 @@ interface in sysfs, which can be accomplished with the included udev rules.")
               ("sed" ,sed)
               ("usbutils" ,usbutils)
               ("util-linux" ,util-linux)
-              ("wireless-tools" ,wireless-tools)))
+              ("wireless-tools" ,wireless-tools)
+              ,@(if (let ((system (or (%current-target-system)
+                                      (%current-system))))
+                      (or (string-prefix? "i686-" system)
+                          (string-prefix? "x86_64-" system)))
+                    `(("x86-energy-perf-policy" ,x86-energy-perf-policy))
+                    '())))
     (build-system gnu-build-system)
     (arguments
-     `(#:phases
+     `(#:modules ((guix build gnu-build-system)
+                  (guix build utils)
+                  (srfi srfi-1))
+       #:phases
        (modify-phases %standard-phases
          (delete 'configure)            ; no configure script
          (add-before 'build 'setenv
@@ -4633,30 +4697,34 @@ interface in sysfs, which can be accomplished with the included udev rules.")
              (let* ((bin (string-append (assoc-ref outputs "out") "/bin"))
                     (bin-files (find-files bin ".*")))
                (define (bin-directory input-name)
-                 (string-append (assoc-ref inputs input-name) "/bin"))
+                 (let ((p (assoc-ref inputs input-name)))
+                   (and p (string-append p "/bin"))))
                (define (sbin-directory input-name)
                  (string-append (assoc-ref inputs input-name) "/sbin"))
                (for-each (lambda (program)
                            (wrap-program program
                              `("PATH" ":" prefix
                                ,(append
-                                 (map bin-directory '("bash"
-                                                      "coreutils"
-                                                      "dbus"
-                                                      "eudev"
-                                                      "grep"
-                                                      "inetutils"
-                                                      "kmod"
-                                                      "perl"
-                                                      "sed"
-                                                      "usbutils"
-                                                      "util-linux"))
-                                 (map sbin-directory '("ethtool"
-                                                       "hdparm"
-                                                       "iw"
-                                                       "pciutils"
-                                                       "rfkill"
-                                                       "wireless-tools"))))))
+                                 (filter-map bin-directory
+                                             '("bash"
+                                               "coreutils"
+                                               "dbus"
+                                               "eudev"
+                                               "grep"
+                                               "inetutils"
+                                               "kmod"
+                                               "perl"
+                                               "sed"
+                                               "usbutils"
+                                               "util-linux"
+                                               "x86-energy-perf-policy"))
+                                 (filter-map sbin-directory
+                                             '("ethtool"
+                                               "hdparm"
+                                               "iw"
+                                               "pciutils"
+                                               "rfkill"
+                                               "wireless-tools"))))))
                          bin-files)
                #t))))))
     (home-page "http://linrunner.de/en/tlp/tlp.html")
diff --git a/gnu/packages/lisp.scm b/gnu/packages/lisp.scm
index 167c4433b1..dfc58d469f 100644
--- a/gnu/packages/lisp.scm
+++ b/gnu/packages/lisp.scm
@@ -14,6 +14,7 @@
 ;;; Copyright © 2018 Pierre Langlois <pierre.langlois@gmx.com>
 ;;; Copyright © 2019 Katherine Cox-Buday <cox.katherine.e@gmail.com>
 ;;; Copyright © 2019 Jesse Gildersleve <jessejohngildersleve@protonmail.com>
+;;; Copyright © 2019 Guillaume Le Vaillant <glv@posteo.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -45,8 +46,10 @@
   #:use-module (gnu packages admin)
   #:use-module (gnu packages base)
   #:use-module (gnu packages bdw-gc)
+  #:use-module (gnu packages bison)
   #:use-module (gnu packages compression)
   #:use-module (gnu packages ed)
+  #:use-module (gnu packages flex)
   #:use-module (gnu packages fontutils)
   #:use-module (gnu packages gcc)
   #:use-module (gnu packages gettext)
@@ -5321,3 +5324,48 @@ port within a range.")
 
 (define-public ecl-find-port
   (sbcl-package->ecl-package sbcl-find-port))
+
+(define-public txr
+  (package
+    (name "txr")
+    (version "216")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "http://www.kylheku.com/cgit/txr/snapshot/txr-"
+                           version
+                           ".tar.bz2"))
+       (patches (search-patches "txr-shell.patch"))
+       (sha256
+        (base32
+         "07cxdpc9zsqd0c2668g00dqjpd6zc4mfdn74aarr6d2hpzdhh937"))))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:configure-flags '("cc=gcc")
+       #:phases (modify-phases %standard-phases
+                  (add-after 'configure 'fix-tests
+                    (lambda _
+                      (substitute* "tests/017/realpath.tl"
+                        (("/usr/bin") "/"))
+                      (substitute* "tests/017/realpath.expected"
+                        (("/usr/bin") "/"))
+                      #t))
+                  (replace 'check
+                    (lambda _
+                      (zero? (system* "make" "tests")))))))
+    (native-inputs
+     `(("bison" ,bison)
+       ("flex" ,flex)))
+    (inputs
+     `(("libffi" ,libffi)))
+    (synopsis "General-purpose, multi-paradigm programming language")
+    (description
+     "TXR is a general-purpose, multi-paradigm programming language.  It
+comprises two languages integrated into a single tool: a text scanning and
+extraction language referred to as the TXR Pattern Language (sometimes just
+\"TXR\"), and a general-purpose dialect of Lisp called TXR Lisp.  TXR can be
+used for everything from \"one liner\" data transformation tasks at the
+command line, to data scanning and extracting scripts, to full application
+development in a wide-range of areas.")
+    (home-page "https://nongnu.org/txr/")
+    (license license:bsd-2)))
diff --git a/gnu/packages/machine-learning.scm b/gnu/packages/machine-learning.scm
index 3e98ac45a3..67ea736284 100644
--- a/gnu/packages/machine-learning.scm
+++ b/gnu/packages/machine-learning.scm
@@ -573,16 +573,16 @@ in terms of new algorithms.")
 (define-public rxcpp
   (package
     (name "rxcpp")
-    (version "4.0.0")
+    (version "4.1.0")
     (source
      (origin
-       (method url-fetch)
-       (uri (string-append "https://github.com/ReactiveX/RxCpp/archive/v"
-                           version ".tar.gz"))
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/ReactiveX/RxCpp.git")
+             (commit (string-append "v" version))))
        (sha256
-        (base32
-         "0y2isr8dy2n1yjr9c5570kpc9lvdlch6jv0jvw000amwn5d3krsh"))
-       (file-name (string-append name "-" version ".tar.gz"))))
+        (base32 "1rdpa3jlc181jd08nk437aar085h28i45s6nzrv65apb3xyyz0ij"))
+       (file-name (git-file-name name version))))
     (build-system cmake-build-system)
     (arguments
      `(#:phases
diff --git a/gnu/packages/mail.scm b/gnu/packages/mail.scm
index 114ef32a9d..7f9dc8e13f 100644
--- a/gnu/packages/mail.scm
+++ b/gnu/packages/mail.scm
@@ -351,14 +351,14 @@ aliasing facilities to work just as they would on normal mail.")
 (define-public mutt
   (package
     (name "mutt")
-    (version "1.11.4")
+    (version "1.12.0")
     (source (origin
              (method url-fetch)
              (uri (string-append "https://bitbucket.org/mutt/mutt/downloads/"
                                  "mutt-" version ".tar.gz"))
              (sha256
               (base32
-               "0098pr4anmq2a0id8wfi2vci3cgcfwf9k4q411w22xn8lrz3aldn"))
+               "13zr2fpql33sdbsjsiaa952js5bvphc1x4lqsj36qyzdhj3l84na"))
              (patches (search-patches "mutt-store-references.patch"))))
     (build-system gnu-build-system)
     (inputs
@@ -581,7 +581,7 @@ and corrections.  It is based on a Bayesian filter.")
 (define-public offlineimap
   (package
     (name "offlineimap")
-    (version "7.2.3")
+    (version "7.2.4")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -590,7 +590,7 @@ and corrections.  It is based on a Bayesian filter.")
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "18sdnhjldn8zs03bgqy1qa3ikmlfvyxcvwp3nbnv1a74biccqbpa"))))
+                "0h5q5nk2p2vx86w6rrbs7v70h81dpqqr68x6l3klzl3m0yj9agb1"))))
     (build-system python-build-system)
     (native-inputs
      `(("asciidoc" ,asciidoc)))
@@ -847,14 +847,14 @@ invoking @command{notifymuch} from the post-new hook.")
 (define-public notmuch
   (package
     (name "notmuch")
-    (version "0.28.4")
+    (version "0.29")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://notmuchmail.org/releases/notmuch-"
-                                  version ".tar.gz"))
+                                  version ".tar.xz"))
               (sha256
                (base32
-                "1jjnhs4xs4gksvg0a9qn68rxrj41im5bh58snka2pkj20nxwmcds"))))
+                "0rg4jp0wlsham76rx9fmlpmcbv3n9vsd81vrzqvh6jrwlnmjds88"))))
     (build-system gnu-build-system)
     (arguments
      `(#:modules ((guix build gnu-build-system)
diff --git a/gnu/packages/mate.scm b/gnu/packages/mate.scm
index f234d2c860..c2a6aaf011 100644
--- a/gnu/packages/mate.scm
+++ b/gnu/packages/mate.scm
@@ -79,8 +79,7 @@
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -136,14 +135,14 @@ actions.")
   (package
     (name "mate-icon-theme")
     (version "1.22.0")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "https://pub.mate-desktop.org/releases/"
-                                  (version-major+minor version) "/"
-                                  name "-" version ".tar.xz"))
-              (sha256
-               (base32
-                "090vfxpn1b1wwvkilv1j3cx4swdm4z0s7xyvhvqhdzj58zsf2000"))))
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
+                           name "-" version ".tar.xz"))
+       (sha256
+        (base32
+         "090vfxpn1b1wwvkilv1j3cx4swdm4z0s7xyvhvqhdzj58zsf2000"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)
@@ -159,14 +158,14 @@ actions.")
   (package
     (name "mate-icon-theme-faenza")
     (version "1.20.0")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "https://pub.mate-desktop.org/releases/"
-                                  (version-major+minor version) "/"
-                                  name "-" version ".tar.xz"))
-              (sha256
-               (base32
-                "000vr9cnbl2qlysf2gyg1lsjirqdzmwrnh6d3hyrsfc0r2vh4wna"))))
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
+                           name "-" version ".tar.xz"))
+       (sha256
+        (base32
+         "000vr9cnbl2qlysf2gyg1lsjirqdzmwrnh6d3hyrsfc0r2vh4wna"))))
     (build-system gnu-build-system)
     (arguments
      `(#:phases
@@ -197,11 +196,11 @@ from Mint-X-F and Faenza-Fresh icon packs.")
   (package
     (name "mate-themes")
     (version "3.22.19")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "https://pub.mate-desktop.org/releases/themes/"
-                                  (version-major+minor version) "/mate-themes-"
-                                  version ".tar.xz"))
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "mirror://mate/themes/" (version-major+minor version)
+                           "/mate-themes-" version ".tar.xz"))
               (sha256
                (base32
                 "1ycb8b8r0s8d1h1477135mynr53s5781gdb2ap8xlvj2g58492wq"))))
@@ -225,14 +224,14 @@ themes for both gtk+-2 and gtk+-3.")
   (package
     (name "mate-desktop")
     (version "1.22.0")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "https://pub.mate-desktop.org/releases/"
-                                  (version-major+minor version) "/"
-                                  name "-" version ".tar.xz"))
-              (sha256
-               (base32
-                "09gn840p6qds21kxab4pidjd53g76s76i7178fdibrz462mda217"))))
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
+                           name "-" version ".tar.xz"))
+       (sha256
+        (base32
+         "09gn840p6qds21kxab4pidjd53g76s76i7178fdibrz462mda217"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)
@@ -259,14 +258,14 @@ desktop and the mate-about program.")
   (package
     (name "libmateweather")
     (version "1.22.0")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "https://pub.mate-desktop.org/releases/"
-                                  (version-major+minor version) "/"
-                                  name "-" version ".tar.xz"))
-              (sha256
-               (base32
-                "1ribgcwl4ncfbcf9bkcbxrgc7yzajdnxg12837psngymkqswlp6a"))))
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
+                           name "-" version ".tar.xz"))
+       (sha256
+        (base32
+         "1ribgcwl4ncfbcf9bkcbxrgc7yzajdnxg12837psngymkqswlp6a"))))
     (build-system gnu-build-system)
     (arguments
      '(#:configure-flags
@@ -308,8 +307,7 @@ the MATE desktop environment.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -349,8 +347,7 @@ configurations (profiles).")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -417,8 +414,7 @@ configuration program to choose applications starting on login.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -460,8 +456,7 @@ configuration program to choose applications starting on login.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -490,8 +485,7 @@ sound systems.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -519,14 +513,14 @@ MATE desktop environment.")
   (package
     (name "mate-menus")
     (version "1.22.0")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "https://pub.mate-desktop.org/releases/"
-                                  (version-major+minor version) "/"
-                                  name "-" version ".tar.xz"))
-              (sha256
-               (base32
-                "1lkakbf2f1815c146z4xp5f0h4lim6jzr02681wbvzalc6k97v5c"))))
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
+                           name "-" version ".tar.xz"))
+       (sha256
+        (base32
+         "1lkakbf2f1815c146z4xp5f0h4lim6jzr02681wbvzalc6k97v5c"))))
     (build-system gnu-build-system)
     (arguments
      `(#:phases
@@ -563,8 +557,7 @@ assorted menu related utility programs.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -637,8 +630,7 @@ Interactive Weather Information Network (IWIN).
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -674,8 +666,7 @@ mate-volume-control, a MATE volume control application and applet.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -748,8 +739,7 @@ infamous 'Wanda the Fish'.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -852,8 +842,7 @@ infamous 'Wanda the Fish'.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -911,8 +900,7 @@ icons on the MATE desktop.  It works on local and remote file systems.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -966,8 +954,7 @@ icons on the MATE desktop.  It works on local and remote file systems.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -1026,8 +1013,7 @@ of various aspects of your desktop.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -1077,8 +1063,7 @@ for use with MATE or as a standalone window manager.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -1117,8 +1102,7 @@ sessions, panels, menus, file management, and preferences.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -1149,8 +1133,7 @@ sessions, panels, menus, file management, and preferences.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -1172,8 +1155,7 @@ can be used as backgrounds in the MATE Desktop environment.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -1214,8 +1196,7 @@ Re-decorates windows on un-maximise.
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -1286,8 +1267,7 @@ can be used as backgrounds in the MATE Desktop environment.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -1339,8 +1319,7 @@ can be used as backgrounds in the MATE Desktop environment.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -1390,8 +1369,7 @@ can be used as backgrounds in the MATE Desktop environment.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -1444,8 +1422,7 @@ can be used as backgrounds in the MATE Desktop environment.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -1495,8 +1472,7 @@ can be used as backgrounds in the MATE Desktop environment.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
@@ -1536,8 +1512,7 @@ MATE Desktop to monitor your system resources and usage.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://pub.mate-desktop.org/releases/"
-                           (version-major+minor version) "/"
+       (uri (string-append "mirror://mate/" (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
         (base32
diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index 5e0df6e409..7bb9bc84a3 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -1692,7 +1692,7 @@ September 2004}")
 (define-public petsc
   (package
     (name "petsc")
-    (version "3.10.4")
+    (version "3.11.2")
     (source
      (origin
       (method url-fetch)
@@ -1700,7 +1700,7 @@ September 2004}")
       (uri (string-append "http://ftp.mcs.anl.gov/pub/petsc/release-snapshots/"
                           "petsc-lite-" version ".tar.gz"))
       (sha256
-       (base32 "0fk16944zh3473ra198kdkxdn08rq7b6ap838hxy1mh1i0hb488r"))))
+       (base32 "1645nwwcp9bcnfnxikk480mhbbacdvhsay2c401818hk97dqj5nx"))))
     (outputs '("out"                    ; libraries and headers
                "examples"))             ; ~30MiB of examples
     (build-system gnu-build-system)
@@ -1845,7 +1845,11 @@ scientific applications modeled by partial differential equations.")
         ``("--with-mpiexec=mpirun"
            ,(string-append "--with-mpi-dir="
                            (assoc-ref %build-inputs "openmpi"))
-           ,@(delete "--with-mpi=0" ,cf)))))
+           ,@(delete "--with-mpi=0" ,cf)))
+       ((#:phases phases)
+        `(modify-phases ,phases
+           (add-before 'configure 'mpi-setup
+             ,%openmpi-setup)))))
     (synopsis "Library to solve PDEs (with complex scalars and MPI support)")))
 
 (define-public python-petsc4py
@@ -1910,7 +1914,7 @@ savings are consistently > 5x.")
 (define-public slepc
   (package
     (name "slepc")
-    (version "3.10.1")
+    (version "3.11.1")
     (source
      (origin
        (method url-fetch)
@@ -1918,10 +1922,11 @@ savings are consistently > 5x.")
                            version ".tar.gz"))
        (sha256
         (base32
-         "188j1a133q91h8pivpnzwcf78kz8dvz2nzf6ndnjygdbqb48fizn"))))
+         "1yq84q9wannc8xwapxpay4ypdd675picwi395hhsdvng9q6hf5j8"))))
     (build-system gnu-build-system)
     (native-inputs
-     `(("python" ,python-2)))
+     `(("python" ,python-2)
+       ("petsc:examples" ,petsc "examples"))) ;for gmakegen.py script
     (inputs
      `(("arpack" ,arpack-ng)
        ("gfortran" ,gfortran)))
@@ -1933,7 +1938,10 @@ savings are consistently > 5x.")
        `(,(string-append "--with-arpack-dir="
                          (assoc-ref %build-inputs "arpack") "/lib"))
        #:make-flags                     ;honor (parallel-job-count)
-       `(,(format #f "MAKE_NP=~a" (parallel-job-count)))
+       `(,(format #f "MAKE_NP=~a" (parallel-job-count))
+         ,(string-append "PETSCCONFIGDIR="
+                         (assoc-ref %build-inputs "petsc:examples")
+                         "/share/petsc/examples/config"))
        #:phases
        (modify-phases %standard-phases
          (replace 'configure
@@ -2752,7 +2760,7 @@ to BMP, JPEG or PNG image formats.")
 (define-public maxima
   (package
     (name "maxima")
-    (version "5.42.2")
+    (version "5.43.0")
     (source
      (origin
        (method url-fetch)
@@ -2760,7 +2768,7 @@ to BMP, JPEG or PNG image formats.")
                            version "-source/" name "-" version ".tar.gz"))
        (sha256
         (base32
-         "0kdncy6137sg3rradirxzj10mkcvafxd892zlclwhr9sa7b12zhn"))
+         "0xyahp4c6509haxh4n1swiqm3421gplkdisa0zypclh3252sbzfw"))
        (patches (search-patches "maxima-defsystem-mkdir.patch"))))
     (build-system gnu-build-system)
     (inputs
@@ -2794,11 +2802,18 @@ to BMP, JPEG or PNG image formats.")
              (let* ((sed (string-append (assoc-ref inputs "sed") "/bin/sed"))
                     (coreutils (assoc-ref inputs "coreutils"))
                     (dirname (string-append coreutils "/bin/dirname"))
-                    (head (string-append coreutils "/bin/head")))
+                    (head (string-append coreutils "/bin/head"))
+                    (perl (string-append (assoc-ref inputs "perl") "/bin/perl"))
+                    (python (string-append (assoc-ref inputs "python")
+                                           "/bin/python3")))
                (substitute* "src/maxima.in"
                  (("sed ") (string-append sed " "))
                  (("dirname") dirname)
                  (("head") head))
+               (substitute* "doc/info/Makefile.in"
+                 (("/usr/bin/env perl") perl))
+               (substitute* "doc/info/build_html.sh.in"
+                 (("python") python))
                #t)))
          (add-before 'check 'pre-check
            (lambda _
@@ -2830,9 +2845,6 @@ to BMP, JPEG or PNG image formats.")
                  (mkdir-p "share/emacs")
                  (mkdir-p "share/doc")
                  (symlink
-                  (string-append datadir "/emacs/")
-                  (string-append out "/share/emacs/site-lisp"))
-                 (symlink
                   (string-append datadir "/doc/")
                   (string-append out "/share/doc/maxima"))
                  (with-atomic-file-replacement
@@ -2863,7 +2875,7 @@ point numbers.")
 (define-public wxmaxima
   (package
     (name "wxmaxima")
-    (version "19.03.1")
+    (version "19.05.7")
     (source
      (origin
        (method git-fetch)
@@ -2873,7 +2885,7 @@ point numbers.")
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "1qkf4jg86xnn3wk3782ffmfz12axb92dkjagcz3ffzw2wi1rclml"))))
+         "0zaz71fh156b9inrxf86scnix247al5pl9v18cxhjxcm0lanqxdp"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("gettext" ,gettext-minimal)))
@@ -3553,6 +3565,7 @@ in finite element programs.")
     (inputs
      `(("mpi" ,openmpi)
        ;;Supported only with MPI:
+       ("hdf5" ,hdf5-parallel-openmpi)  ;TODO: have petsc-openmpi propagate?
        ("p4est" ,p4est-openmpi)
        ("petsc" ,petsc-openmpi)
        ("slepc" ,slepc-openmpi)
diff --git a/gnu/packages/mes.scm b/gnu/packages/mes.scm
index c2430f5ee9..7bdd122f2b 100644
--- a/gnu/packages/mes.scm
+++ b/gnu/packages/mes.scm
@@ -28,6 +28,7 @@
   #:use-module (gnu packages man)
   #:use-module (gnu packages package-management)
   #:use-module (gnu packages perl)
+  #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages texinfo)
   #:use-module (guix build-system gnu)
   #:use-module (guix download)
@@ -35,7 +36,7 @@
   #:use-module (guix licenses)
   #:use-module (guix packages))
 
-(define-public nyacc
+(define-public nyacc-0.86
   (package
     (name "nyacc")
     (version "0.86.0")
@@ -58,6 +59,37 @@ extensive examples, including parsers for the Javascript and C99 languages.")
     (home-page "https://savannah.nongnu.org/projects/nyacc")
     (license (list gpl3+ lgpl3+))))
 
+(define-public nyacc
+  (package
+    (inherit nyacc-0.86)
+    (version "0.94.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://savannah/nyacc/nyacc-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "12qnzwm1n3j8z7hbr9hy2wka9a1aasm2rvnpnvdxkjcsbdzj8fn4"))
+              (modules '((guix build utils)))
+              (snippet
+               '(begin
+                  (substitute* (find-files "." "^Makefile\\.in$")
+                    (("^SITE_SCM_DIR =.*")
+                     "SITE_SCM_DIR = \
+@prefix@/share/guile/site/@GUILE_EFFECTIVE_VERSION@\n")
+                    (("^SITE_SCM_GO_DIR =.*")
+                     "SITE_SCM_GO_DIR = \
+@prefix@/lib/guile/@GUILE_EFFECTIVE_VERSION@/site-ccache\n")
+                    (("^INFODIR =.*")
+                     "INFODIR = @prefix@/share/info\n")
+                    (("^DOCDIR =.*")
+                     "DOCDIR = @prefix@/share/doc/$(PACKAGE_TARNAME)\n"))
+                  #t))))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("guile" ,guile-2.2)))))
+
 (define-public mes
   (package
     (name "mes")
@@ -73,7 +105,10 @@ extensive examples, including parsers for the Javascript and C99 languages.")
     (supported-systems '("i686-linux" "x86_64-linux"))
     (propagated-inputs
      `(("mescc-tools" ,mescc-tools)
-       ("nyacc" ,nyacc)))
+
+       ;; XXX: MesCC appears to enter an infinite loop (?) while building
+       ;; crt1.o when we switch to nyacc 0.94.
+       ("nyacc" ,nyacc-0.86)))
     (native-inputs
      `(("guile" ,guile-2.2)
        ,@(let ((target-system (or (%current-target-system)
diff --git a/gnu/packages/messaging.scm b/gnu/packages/messaging.scm
index 827b7f800e..7d036ad473 100644
--- a/gnu/packages/messaging.scm
+++ b/gnu/packages/messaging.scm
@@ -371,15 +371,14 @@ authentication.")
 (define-public pidgin
   (package
     (name "pidgin")
-    (version "2.12.0")
+    (version "2.13.0")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "mirror://sourceforge/pidgin/Pidgin/"
-                           version "/" name "-" version ".tar.bz2"))
+                           version "/pidgin-" version ".tar.bz2"))
        (sha256
-        (base32
-         "1y5p2mq3bfw35b66jsafmbva0w5gg1k99y9z8fyp3jfksqv3agcc"))
+        (base32 "13vdqj70315p9rzgnbxjp9c51mdzf1l4jg1kvnylc4bidw61air7"))
        (patches (search-patches "pidgin-add-search-path.patch"))))
     (build-system glib-or-gtk-build-system)
     (native-inputs
@@ -403,13 +402,13 @@ authentication.")
        ;; TODO: gstreamer: patches needed to support gstreamer-1.0 or later
        ;; TODO: farstream
        ;; TODO: meanwhile
-       ;; TODO: network-manager
        ;; TODO: gtkspell
        ;; TODO: libxephyr
        ;; TODO: libgadu
        ("libxslt" ,libxslt)
        ("avahi" ,avahi)
        ("ncurses" ,ncurses)
+       ("network-manager" ,network-manager)
        ("sqlite" ,sqlite)
        ("libice" ,libice)
        ("libsm" ,libsm)
@@ -420,7 +419,6 @@ authentication.")
        (list "--disable-gtkspell"
              "--disable-tcl"
              "--disable-meanwhile"
-             "--disable-nm"  ; XXX remove when we have network-manager
              "--disable-vv"  ; XXX remove when we have farstream and gstreamer
              "--disable-gstreamer" ; XXX patches needed to support gstreamer-1.0
              "--enable-cyrus-sasl"
@@ -433,7 +431,7 @@ authentication.")
             (files (list (string-append "lib/purple-"
                                         (version-major version))
                          "lib/pidgin")))))
-    (home-page "http://www.pidgin.im/")
+    (home-page "https://www.pidgin.im/")
     (synopsis "Graphical multi-protocol instant messaging client")
     (description
      "Pidgin is a modular instant messaging client that supports many popular
diff --git a/gnu/packages/mpd.scm b/gnu/packages/mpd.scm
index a9e6e054e1..668045c5eb 100644
--- a/gnu/packages/mpd.scm
+++ b/gnu/packages/mpd.scm
@@ -91,7 +91,7 @@ interfacing MPD in the C, C++ & Objective C languages.")
 (define-public mpd
   (package
     (name "mpd")
-    (version "0.21.8")
+    (version "0.21.9")
     (source (origin
               (method url-fetch)
               (uri
@@ -100,7 +100,7 @@ interfacing MPD in the C, C++ & Objective C languages.")
                               "/mpd-" version ".tar.xz"))
               (sha256
                (base32
-                "0mwpkbjsljj1khlnnjanvw3pgxbhsdl0bh2k9bxnpijn2gqq7q13"))))
+                "0ghda8g9q0bi6nrvl6n756d8f45spqpblkh77mnb4k9gmiv57qir"))))
     (build-system meson-build-system)
     (arguments
      `(#:configure-flags '("-Ddocumentation=true"))) ;the default is 'false'...
diff --git a/gnu/packages/music.scm b/gnu/packages/music.scm
index 9ee5206b33..1c0a4f3982 100644
--- a/gnu/packages/music.scm
+++ b/gnu/packages/music.scm
@@ -1315,16 +1315,16 @@ Editor.  It is compatible with Power Tab Editor 1.7 and Guitar Pro.")
 (define-public jalv-select
   (package
     (name "jalv-select")
-    (version "0.8")
+    (version "1.3")
     (source (origin
               (method git-fetch)
               (uri (git-reference
                     (url "https://github.com/brummer10/jalv_select.git")
-                    (commit (string-append "V" version))))
+                    (commit (string-append "v" version))))
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "0gqh768sbvn9ffyx1vqg9i57py9x9v4l65bk6wjsvgga4d7m83k1"))))
+                "15yanq1wra0hyh6x72ji7pk562iddg476g3vksj495x91zhnl6vm"))))
     (build-system gnu-build-system)
     (arguments
      `(#:make-flags
@@ -1337,8 +1337,6 @@ Editor.  It is compatible with Power Tab Editor 1.7 and Guitar Pro.")
              (substitute* "jalv.select.cpp"
                (("echo \\$PATH.*tr ':'.*xargs ls")
                 (string-append "ls -1 " (assoc-ref inputs "jalv") "/bin")))
-             (substitute* "jalv.select.h"
-               (("gtkmm.h") "gtkmm-2.4/gtkmm.h"))
              #t))
          (add-before 'reset-gzip-timestamps 'make-manpages-writable
            (lambda* (#:key outputs #:allow-other-keys)
@@ -3727,7 +3725,7 @@ audio samples and various soft sythesizers.  It can receive input from a MIDI ke
 (define-public musescore
   (package
     (name "musescore")
-    (version "3.0.5")
+    (version "3.1")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -3736,7 +3734,7 @@ audio samples and various soft sythesizers.  It can receive input from a MIDI ke
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "1inf6zdyh6yspjv1i7g6rw9wn90vki1s2qgilkp0j4aphayj4mic"))
+                "07xkn8gnnqzhj9cn1li5qpm2rfm86bmxbbfd76i1jx4v999icn0j"))
               (modules '((guix build utils)))
               (snippet
                ;; Un-bundle OpenSSL and remove unused libraries.
diff --git a/gnu/packages/networking.scm b/gnu/packages/networking.scm
index bb11154978..2ea65f270c 100644
--- a/gnu/packages/networking.scm
+++ b/gnu/packages/networking.scm
@@ -1485,15 +1485,15 @@ procedure calls (RPCs).")
 (define-public openvswitch
   (package
     (name "openvswitch")
-    (version "2.10.1")
+    (version "2.11.1")
     (source (origin
               (method url-fetch)
               (uri (string-append
-                    "http://openvswitch.org/releases/openvswitch-"
+                    "https://www.openvswitch.org/releases/openvswitch-"
                     version ".tar.gz"))
               (sha256
                (base32
-                "103wi6k8xal0z1pyy680gms56skagh6jawa2ja588ljr55jcg4sg"))))
+                "1p5mv44jaslvrr1ym15smqna19y0gi4vqcsyj58625vv9bj6laf1"))))
     (build-system gnu-build-system)
     (arguments
      '(;; FIXME: many tests fail with:
@@ -1529,7 +1529,7 @@ procedure calls (RPCs).")
      `(("libcap-ng" ,libcap-ng)
        ("openssl" ,openssl)))
     (synopsis "Virtual network switch")
-    (home-page "http://www.openvswitch.org/")
+    (home-page "https://www.openvswitch.org/")
     (description
      "Open vSwitch is a multilayer virtual switch.  It is designed to enable
 massive network automation through programmatic extension, while still
diff --git a/gnu/packages/node.scm b/gnu/packages/node.scm
index 2772f56d9f..df59a42c74 100644
--- a/gnu/packages/node.scm
+++ b/gnu/packages/node.scm
@@ -5,7 +5,7 @@
 ;;; Copyright © 2016 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2017 Mike Gerwitz <mtg@gnu.org>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
-;;; Copyright © 2018 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2018, 2019 Marius Bakke <mbakke@fastmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -45,14 +45,14 @@
 (define-public node
   (package
     (name "node")
-    (version "9.11.1")
+    (version "10.15.3")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://nodejs.org/dist/v" version
-                                  "/node-v" version ".tar.gz"))
+                                  "/node-v" version ".tar.xz"))
               (sha256
                (base32
-                "1vjh9zvw7wkdz6b0l99ya7mqjk0l8lbg9isr1q8rxwp400dhkk32"))
+                "1mcijznh481s44i59p571a38bfvcxm9f8x2l0l1005aly0kdj8jf"))
               (modules '((guix build utils)))
               (snippet
                `(begin
@@ -83,18 +83,14 @@
                            "--shared-zlib"
                            "--without-snapshot"
                            "--with-intl=system-icu")
+       ;; Run only the CI tests.  The default test target requires additional
+       ;; add-ons from NPM that are not distributed with the source.
+       #:test-target "test-ci-js"
        #:phases
        (modify-phases %standard-phases
          (add-before 'configure 'patch-files
            (lambda* (#:key inputs #:allow-other-keys)
 
-             ;; This phase is inherited by Node LTS, which does not have all
-             ;; the files listed here.  Use this helper for convenience.
-             (define (delete-if-exists file)
-               (if (file-exists? file)
-                   (delete-file file)
-                   '()))
-
              ;; Fix hardcoded /bin/sh references.
              (substitute* '("lib/child_process.js"
                             "lib/internal/v8_prof_polyfill.js"
@@ -110,17 +106,9 @@
                (("'/usr/bin/env'")
                 (string-append "'" (which "env") "'")))
 
-             ;; FIXME: These tests depend on being able to install eslint.
-             ;; See https://github.com/nodejs/node/issues/17098.
-             (for-each delete-if-exists
-                       '("test/parallel/test-eslint-alphabetize-errors.js"
-                         "test/parallel/test-eslint-buffer-constructor.js"
-                         "test/parallel/test-eslint-documented-errors.js"
-                         "test/parallel/test-eslint-inspector-check.js"))
-
              ;; FIXME: These tests fail in the build container, but they don't
              ;; seem to be indicative of real problems in practice.
-             (for-each delete-if-exists
+             (for-each delete-file
                        '("test/async-hooks/test-ttywrap.readstream.js"
                          "test/parallel/test-util-inspect.js"
                          "test/parallel/test-v8-serdes.js"
@@ -132,14 +120,13 @@
                          "test/parallel/test-net-listen-after-destroying-stdin.js"
                          "test/parallel/test-npm-install.js"
                          "test/sequential/test-child-process-emfile.js"
-                         "test/sequential/test-benchmark-child-process.js"
                          "test/sequential/test-http-regr-gh-2928.js"))
 
              ;; These tests have an expiry date: they depend on the validity of
              ;; TLS certificates that are bundled with the source.  We want this
              ;; package to be reproducible forever, so remove those.
              ;; TODO: Regenerate certs instead.
-             (for-each delete-if-exists
+             (for-each delete-file
                        '("test/parallel/test-tls-passphrase.js"
                          "test/parallel/test-tls-server-verify.js"))
              #t))
@@ -184,9 +171,9 @@
      `(("c-ares" ,c-ares)
        ("http-parser" ,http-parser)
        ("icu4c" ,icu4c)
-       ("libuv" ,libuv-1.19)
+       ("libuv" ,libuv)
        ("nghttp2" ,nghttp2 "lib")
-       ("openssl" ,openssl-1.0)
+       ("openssl" ,openssl)
        ("zlib" ,zlib)))
     (synopsis "Evented I/O for V8 JavaScript")
     (description "Node.js is a platform built on Chrome's JavaScript runtime
@@ -197,16 +184,3 @@ devices.")
     (home-page "https://nodejs.org/")
     (license expat)
     (properties '((timeout . 3600))))) ; 1 h
-
-(define-public node-lts
-  (package
-    (inherit node)
-    (name "node-lts")
-    (version "8.12.0")
-    (source (origin
-              (inherit (package-source node))
-              (uri (string-append "https://nodejs.org/dist/v" version
-                                  "/node-v" version ".tar.xz"))
-              (sha256
-               (base32
-                "16j1rrxkhmvpcw689ndw1raql1gz4jqn7n82z55zn63c05cgz7as"))))))
diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
index 338f98030a..bd66ab04aa 100644
--- a/gnu/packages/ocaml.scm
+++ b/gnu/packages/ocaml.scm
@@ -697,7 +697,8 @@ written in Objective Caml.")
            (lambda* (#:key outputs #:allow-other-keys)
              (format #t "~a~%" (find-files "." ".*.so"))
              (let ((stubdir (string-append (assoc-ref outputs "out")
-                                           "/lib/ocaml/site-lib")))
+                                           "/lib/ocaml/site-lib/stublibs")))
+               (delete-file stubdir)
                (mkdir-p stubdir)
                (install-file "src/dllnums.so" stubdir))
              #t)))))
@@ -1626,7 +1627,13 @@ spans without being subject to operating system calendar time adjustments.")
                                          "/lib/ocaml/site-lib/cmdliner"))
        #:phases
        (modify-phases %standard-phases
-         (delete 'configure))))
+         (delete 'configure)
+         (add-before 'build 'fix-source-file-order
+           (lambda _
+             (substitute* "build.ml"
+               (("Sys.readdir dir")
+                "let a = Sys.readdir dir in Array.sort String.compare a; a"))
+             #t)))))
     (home-page "http://erratique.ch/software/cmdliner")
     (synopsis "Declarative definition of command line interfaces for OCaml")
     (description "Cmdliner is a module for the declarative definition of command
@@ -2290,6 +2297,12 @@ many additional enhancements, including:
      `(#:phases
        (modify-phases %standard-phases
          (delete 'check) ; tests are run by the build phase
+         (add-before 'build 'fix-nondeterminism
+           (lambda _
+             (substitute* "setup.ml"
+               (("Sys.readdir dirname")
+                "let a = Sys.readdir dirname in Array.sort String.compare a; a"))
+             #t))
          (replace 'build
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let ((files
diff --git a/gnu/packages/package-management.scm b/gnu/packages/package-management.scm
index a356a6dab7..e1e7d6a5a0 100644
--- a/gnu/packages/package-management.scm
+++ b/gnu/packages/package-management.scm
@@ -111,8 +111,8 @@
   ;; Note: the 'update-guix-package.scm' script expects this definition to
   ;; start precisely like this.
   (let ((version "1.0.1")
-        (commit "820429517f9cc8333704a839b4346ac4b02468c4")
-        (revision 1))
+        (commit "4a54ed774913480c0f8dad3caf0cd627e4fa8ebf")
+        (revision 3))
     (package
       (name "guix")
 
@@ -128,7 +128,7 @@
                       (commit commit)))
                 (sha256
                  (base32
-                  "1vfp7ps1k1cwn8p0gsgarlxcy982hzyvb7zqnj66jqd258a1qfgh"))
+                  "14m4a4bn0d5hav6mrks5d7r223knx9dpswgbsc875wgr2921na2h"))
                 (file-name (string-append "guix-" version "-checkout"))))
       (build-system gnu-build-system)
       (arguments
@@ -272,6 +272,7 @@
        `(("bzip2" ,bzip2)
          ("gzip" ,gzip)
          ("zlib" ,zlib)                           ;for 'guix publish'
+         ("lzlib" ,lzlib)            ;for 'guix publish' and 'guix substitute'
 
          ("sqlite" ,sqlite)
          ("libgcrypt" ,libgcrypt)
@@ -547,13 +548,16 @@ transactions from C or Python.")
 (define-public diffoscope
   (package
     (name "diffoscope")
-    (version "114")
+    (version (git-version "115" "1" "7f3416ffd12572b42c814e43ac15cee44ef48155"))
     (source (origin
-              (method url-fetch)
-              (uri (pypi-uri name version))
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://salsa.debian.org/reproducible-builds/diffoscope.git")
+                    (commit "7f3416ffd12572b42c814e43ac15cee44ef48155")))
+              (file-name (git-file-name name version))
               (sha256
                (base32
-                "07sma4izcqxdv0zi1s5fnsybvkc47c3vbpm372sg83q8l7rhizzp"))))
+                "1pn2rwlz5shdx7s63798wx2v7029bl5if6dlq3i2r6zsnpp0laki"))))
     (build-system python-build-system)
     (arguments
      `(#:phases (modify-phases %standard-phases
@@ -589,7 +593,8 @@ transactions from C or Python.")
                       #t))
                   (add-before 'check 'delete-failing-test
                     (lambda _
-                      (delete-file "tests/test_tools.py") ;this requires /sbin to be on the path
+                      ;; this requires /sbin to be on the path
+                      (delete-file "tests/test_tools.py")
                       #t)))))
     (inputs `(("rpm" ,rpm)                        ;for rpm-python
               ("python-file" ,python-file)
@@ -598,11 +603,10 @@ transactions from C or Python.")
               ("python-tlsh" ,python-tlsh)
               ("acl" ,acl)                        ;for getfacl
               ("colordiff" ,colordiff)
-              ("xxd" ,xxd)
-
-              ;; Below are modules used for tests.
-              ("python-pytest" ,python-pytest)
-              ("python-chardet" ,python-chardet)))
+              ("xxd" ,xxd)))
+    ;; Below are modules used for tests.
+    (native-inputs `(("python-pytest" ,python-pytest)
+                     ("python-chardet" ,python-chardet)))
     (home-page "https://diffoscope.org/")
     (synopsis "Compare files, archives, and directories in depth")
     (description
diff --git a/gnu/packages/password-utils.scm b/gnu/packages/password-utils.scm
index 2b844c9a1c..ed890f73c3 100644
--- a/gnu/packages/password-utils.scm
+++ b/gnu/packages/password-utils.scm
@@ -108,7 +108,7 @@ human.")
 (define-public keepassxc
   (package
     (name "keepassxc")
-    (version "2.4.1")
+    (version "2.4.2")
     (source
      (origin
        (method url-fetch)
@@ -117,7 +117,7 @@ human.")
                            version "-src.tar.xz"))
        (sha256
         (base32
-         "1aw9airx9z846p0xc0qjgy5hg35b8cxp57rvlq39n6wx4z8ppa8d"))))
+         "0f31lmpbkw0wrhq0qa4yw5b51bjv7vqp3ikr355qcm905456vyhm"))))
     (build-system cmake-build-system)
     (arguments
      '(#:configure-flags '("-DWITH_XC_NETWORKING=YES"
@@ -310,6 +310,15 @@ and vice versa.")
        (sha256
         (base32 "1rimpjsdnmw8f5b7k558cic41p2qy2n2yrlqp5vh7mp4162hk0py"))))
     (build-system gnu-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-after 'install 'install-dict
+           (lambda* (#:key make-flags #:allow-other-keys)
+             (begin
+               (chmod (string-append "util/cracklib-format") #o755)
+               (apply invoke "make" "dict" make-flags)
+               #t))))))
     (synopsis "Password checking library")
     (home-page "https://github.com/cracklib/cracklib")
     (description
diff --git a/gnu/packages/patches/borg-fix-hard-link-preloading.patch b/gnu/packages/patches/borg-fix-hard-link-preloading.patch
deleted file mode 100644
index 92a4e22674..0000000000
--- a/gnu/packages/patches/borg-fix-hard-link-preloading.patch
+++ /dev/null
@@ -1,157 +0,0 @@
-Fix a bug that would cause the test suite to hang:
-
-https://github.com/borgbackup/borg/issues/4350
-
-Patch copied from upstream source repository:
-
-https://github.com/borgbackup/borg/commit/18242ab9e2f26c450b8507aa1d5eceadab8ad027
-
-From 18242ab9e2f26c450b8507aa1d5eceadab8ad027 Mon Sep 17 00:00:00 2001
-From: Thomas Waldmann <tw@waldmann-edv.de>
-Date: Thu, 2 May 2019 21:02:26 +0200
-Subject: [PATCH] preload chunks for hardlink slaves w/o preloaded master,
- fixes #4350
-
-also split the hardlink extraction test into 2 tests.
-
-(cherry picked from commit f33f318d816505161d1449a02ddfdeb97d6fe80a)
----
- src/borg/archive.py            | 42 +++++++++++++++++++++++++++++-----
- src/borg/archiver.py           |  5 ++--
- src/borg/testsuite/archiver.py | 20 +++++++++-------
- 3 files changed, 51 insertions(+), 16 deletions(-)
-
-diff --git a/src/borg/archive.py b/src/borg/archive.py
-index adc1f42c..0793672a 100644
---- a/src/borg/archive.py
-+++ b/src/borg/archive.py
-@@ -192,7 +192,7 @@ def __init__(self, repository, key):
-         self.repository = repository
-         self.key = key
- 
--    def unpack_many(self, ids, filter=None, preload=False):
-+    def unpack_many(self, ids, filter=None, partial_extract=False, preload=False, hardlink_masters=None):
-         """
-         Return iterator of items.
- 
-@@ -209,12 +209,40 @@ def unpack_many(self, ids, filter=None, preload=False):
-             for item in items:
-                 if 'chunks' in item:
-                     item.chunks = [ChunkListEntry(*e) for e in item.chunks]
-+
-+            def preload(chunks):
-+                self.repository.preload([c.id for c in chunks])
-+
-             if filter:
-                 items = [item for item in items if filter(item)]
-+
-             if preload:
--                for item in items:
--                    if 'chunks' in item:
--                        self.repository.preload([c.id for c in item.chunks])
-+                if filter and partial_extract:
-+                    # if we do only a partial extraction, it gets a bit
-+                    # complicated with computing the preload items: if a hardlink master item is not
-+                    # selected (== not extracted), we will still need to preload its chunks if a
-+                    # corresponding hardlink slave is selected (== is extracted).
-+                    # due to a side effect of the filter() call, we now have hardlink_masters dict populated.
-+                    masters_preloaded = set()
-+                    for item in items:
-+                        if 'chunks' in item:  # regular file, maybe a hardlink master
-+                            preload(item.chunks)
-+                            # if this is a hardlink master, remember that we already preloaded it:
-+                            if 'source' not in item and hardlinkable(item.mode) and item.get('hardlink_master', True):
-+                                masters_preloaded.add(item.path)
-+                        elif 'source' in item and hardlinkable(item.mode):  # hardlink slave
-+                            source = item.source
-+                            if source not in masters_preloaded:
-+                                # we only need to preload *once* (for the 1st selected slave)
-+                                chunks, _ = hardlink_masters[source]
-+                                preload(chunks)
-+                                masters_preloaded.add(source)
-+                else:
-+                    # easy: we do not have a filter, thus all items are selected, thus we need to preload all chunks.
-+                    for item in items:
-+                        if 'chunks' in item:
-+                            preload(item.chunks)
-+
-             for item in items:
-                 yield item
- 
-@@ -433,8 +461,10 @@ def item_filter(self, item, filter=None):
-             return False
-         return filter(item) if filter else True
- 
--    def iter_items(self, filter=None, preload=False):
--        for item in self.pipeline.unpack_many(self.metadata.items, preload=preload,
-+    def iter_items(self, filter=None, partial_extract=False, preload=False, hardlink_masters=None):
-+        assert not (filter and partial_extract and preload) or hardlink_masters is not None
-+        for item in self.pipeline.unpack_many(self.metadata.items, partial_extract=partial_extract,
-+                                              preload=preload, hardlink_masters=hardlink_masters,
-                                               filter=lambda item: self.item_filter(item, filter)):
-             yield item
- 
-diff --git a/src/borg/archiver.py b/src/borg/archiver.py
-index 957959d6..dcc20455 100644
---- a/src/borg/archiver.py
-+++ b/src/borg/archiver.py
-@@ -755,7 +755,8 @@ def peek_and_store_hardlink_masters(item, matched):
-         else:
-             pi = None
- 
--        for item in archive.iter_items(filter, preload=True):
-+        for item in archive.iter_items(filter, partial_extract=partial_extract,
-+                                       preload=True, hardlink_masters=hardlink_masters):
-             orig_path = item.path
-             if strip_components:
-                 item.path = os.sep.join(orig_path.split(os.sep)[strip_components:])
-@@ -997,7 +998,7 @@ def item_to_tarinfo(item, original_path):
-                 return None, stream
-             return tarinfo, stream
- 
--        for item in archive.iter_items(filter, preload=True):
-+        for item in archive.iter_items(filter, preload=True, hardlink_masters=hardlink_masters):
-             orig_path = item.path
-             if strip_components:
-                 item.path = os.sep.join(orig_path.split(os.sep)[strip_components:])
-diff --git a/src/borg/testsuite/archiver.py b/src/borg/testsuite/archiver.py
-index c35ad800..935b3d79 100644
---- a/src/borg/testsuite/archiver.py
-+++ b/src/borg/testsuite/archiver.py
-@@ -823,7 +823,18 @@ def test_mount_hardlinks(self):
-             assert open('input/dir1/subdir/hardlink', 'rb').read() == b'123456'
- 
-     @requires_hardlinks
--    def test_extract_hardlinks(self):
-+    def test_extract_hardlinks1(self):
-+        self._extract_hardlinks_setup()
-+        with changedir('output'):
-+            self.cmd('extract', self.repository_location + '::test')
-+            assert os.stat('input/source').st_nlink == 4
-+            assert os.stat('input/abba').st_nlink == 4
-+            assert os.stat('input/dir1/hardlink').st_nlink == 4
-+            assert os.stat('input/dir1/subdir/hardlink').st_nlink == 4
-+            assert open('input/dir1/subdir/hardlink', 'rb').read() == b'123456'
-+
-+    @requires_hardlinks
-+    def test_extract_hardlinks2(self):
-         self._extract_hardlinks_setup()
-         with changedir('output'):
-             self.cmd('extract', self.repository_location + '::test', '--strip-components', '2')
-@@ -839,13 +850,6 @@ def test_extract_hardlinks(self):
-             assert open('input/dir1/subdir/hardlink', 'rb').read() == b'123456'
-             assert os.stat('input/dir1/aaaa').st_nlink == 2
-             assert os.stat('input/dir1/source2').st_nlink == 2
--        with changedir('output'):
--            self.cmd('extract', self.repository_location + '::test')
--            assert os.stat('input/source').st_nlink == 4
--            assert os.stat('input/abba').st_nlink == 4
--            assert os.stat('input/dir1/hardlink').st_nlink == 4
--            assert os.stat('input/dir1/subdir/hardlink').st_nlink == 4
--            assert open('input/dir1/subdir/hardlink', 'rb').read() == b'123456'
- 
-     def test_extract_include_exclude(self):
-         self.cmd('init', '--encryption=repokey', self.repository_location)
--- 
-2.21.0
-
diff --git a/gnu/packages/patches/emacs-realgud-fix-configure-ac.patch b/gnu/packages/patches/emacs-realgud-fix-configure-ac.patch
deleted file mode 100644
index 8165857c87..0000000000
--- a/gnu/packages/patches/emacs-realgud-fix-configure-ac.patch
+++ /dev/null
@@ -1,27 +0,0 @@
-From a293690f29407ac54a218d6d20c2142e1a0319d1 Mon Sep 17 00:00:00 2001
-From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
-Date: Wed, 31 Oct 2018 00:08:34 -0400
-Subject: [PATCH] configure.ac: Fix NO_CHECK_EMACS_PACKAGES elisp.
-
-Remove the extraneous trailing parenthesis.
----
- configure.ac | 3 +--
- 1 file changed, 1 insertion(+), 2 deletions(-)
-
-diff --git a/configure.ac b/configure.ac
-index de0d932..69bcea7 100644
---- a/configure.ac
-+++ b/configure.ac
-@@ -25,8 +25,7 @@ AC_MSG_NOTICE("Checking prerequiste packages")
- $EMACS -batch -q --no-site-file -eval \
-   '(dolist (package
-          (quote (cl-lib loc-changes load-relative test-simple)))
--        (require package))
--   )'
-+        (require package))'
- fi
- if test $? -ne 0 ; then
-     AC_MSG_ERROR([Can't continue until above error is corrected.])
--- 
-2.19.0
-
diff --git a/gnu/packages/patches/gnucash-fix-test-transaction-failure.patch b/gnu/packages/patches/gnucash-fix-test-transaction-failure.patch
deleted file mode 100644
index 7b1b29f06c..0000000000
--- a/gnu/packages/patches/gnucash-fix-test-transaction-failure.patch
+++ /dev/null
@@ -1,54 +0,0 @@
-# This patch was submitted upstream to: https://bugs.gnucash.org/show_bug.cgi?id=797008.
-From c20d74bebca516d0e391724202aad511967fe109 Mon Sep 17 00:00:00 2001
-From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
-Date: Wed, 2 Jan 2019 14:46:28 -0500
-Subject: [PATCH] tests: Fix a test failure in test-transaction.scm.
-
-With the New Year upon us, a test which was hard-coded to use 2018 now
-failed.
-
-Fixes issue #797008 (see:
-https://bugs.gnucash.org/show_bug.cgi?id=797008).
-
-* gnucash/report/standard-reports/test/test-transaction.scm:
-(trep-tests): Use the current year in the test string instead of a
-static one.
----
- gnucash/report/standard-reports/test/test-transaction.scm | 7 +++++--
- 1 file changed, 5 insertions(+), 2 deletions(-)
-
-diff --git a/gnucash/report/standard-reports/test/test-transaction.scm b/gnucash/report/standard-reports/test/test-transaction.scm
-index 755aba298..ae3fbd5c1 100644
---- a/gnucash/report/standard-reports/test/test-transaction.scm
-+++ b/gnucash/report/standard-reports/test/test-transaction.scm
-@@ -5,6 +5,7 @@
- (use-modules (gnucash report stylesheets))
- (use-modules (gnucash report report-system))
- (use-modules (gnucash report report-system test test-extras))
-+(use-modules (srfi srfi-19))
- (use-modules (srfi srfi-64))
- (use-modules (gnucash engine test srfi64-extras))
- (use-modules (sxml simple))
-@@ -643,7 +644,8 @@
-       (set-option! options "General" "Show original currency amount" #t)
-       (set-option! options "Sorting" "Primary Key" 'date)
-       (set-option! options "Sorting" "Primary Subtotal for Date Key" 'none)
--      (let* ((sxml (options->sxml options "dual columns")))
-+      (let* ((sxml (options->sxml options "dual columns"))
-+	     (current-year (date->string (current-date) "~y")))
-         (test-equal "dual amount column, with original currency headers"
-           (list "Date" "Num" "Description" "Memo/Notes" "Account"
-                 "Debit (USD)" "Credit (USD)" "Debit" "Credit")
-@@ -652,7 +654,8 @@
-           (list "Grand Total" "$2,280.00" "$2,280.00")
-           (get-row-col sxml -1 #f))
-         (test-equal "dual amount column, first transaction correct"
--          (list "01/03/18" "$103 income" "Root.Asset.Bank" "$103.00" "$103.00")
-+          (list (string-append "01/03/" current-year) "$103 income"
-+		"Root.Asset.Bank" "$103.00" "$103.00")
-           (get-row-col sxml 1 #f)))
-       )
- 
--- 
-2.19.0
-
diff --git a/gnu/packages/patches/gtksourceview-2-add-default-directory.patch b/gnu/packages/patches/gtksourceview-2-add-default-directory.patch
new file mode 100644
index 0000000000..c4b5052b81
--- /dev/null
+++ b/gnu/packages/patches/gtksourceview-2-add-default-directory.patch
@@ -0,0 +1,33 @@
+From fc401acb15f15d487c942437b6fb429289dd3c67 Mon Sep 17 00:00:00 2001
+From: Julien Lepiller <julien@lepiller.eu>
+Date: Fri, 31 May 2019 13:22:25 +0200
+Subject: [PATCH] Add installation directory as a default directory.
+
+In Guix, this library is installed in a separate directory in the store,
+and it's typically not installed system-wide in a fixed directory. Add
+the store path to the set of default directories so dependents can find
+default langs and source highlighting scheme.
+---
+ gtksourceview/gtksourceview-utils.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/gtksourceview/gtksourceview-utils.c b/gtksourceview/gtksourceview-utils.c
+index 6f06bab..c3467d5 100644
+--- a/gtksourceview/gtksourceview-utils.c
++++ b/gtksourceview/gtksourceview-utils.c
+@@ -66,6 +66,12 @@ _gtk_source_view_get_default_dirs (const char *basename,
+ 							 basename,
+ 							 NULL));
+ 
++    /* installed dir */
++    g_ptr_array_add (dirs, g_build_filename (DATADIR,
++						 SOURCEVIEW_DIR,
++						 basename,
++						 NULL));
++
+ 	g_ptr_array_add (dirs, NULL);
+ 
+ 	return (gchar**) g_ptr_array_free (dirs, FALSE);
+-- 
+2.21.0
+
diff --git a/gnu/packages/patches/icecat-makeicecat.patch b/gnu/packages/patches/icecat-makeicecat.patch
index 2a11bf0b70..7d4f774c83 100644
--- a/gnu/packages/patches/icecat-makeicecat.patch
+++ b/gnu/packages/patches/icecat-makeicecat.patch
@@ -3,10 +3,10 @@ in a snippet without network access.  After this patch is applied, some
 additional changes will be made using 'substitute*'.
 
 diff --git a/makeicecat b/makeicecat
-index aa46b94..db27a86 100644
+index 5a4390b..fcfa143 100644
 --- a/makeicecat
 +++ b/makeicecat
-@@ -36,75 +36,75 @@ export DEBFULLNAME="Ruben Rodriguez"
+@@ -29,55 +29,55 @@ SOURCEDIR=icecat-$FFVERSION
  
  DATA="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"/data
  
@@ -25,6 +25,7 @@ index aa46b94..db27a86 100644
 -wget -N https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/${FFVERSION}esr/source/firefox-${FFVERSION}esr.source.tar.xz.asc
 -gpg --recv-keys --keyserver keyserver.ubuntu.com 24C6F355
 -gpg --verify firefox-${FFVERSION}esr.source.tar.xz.asc
+-echo -n 0a5f0c1d8d1e9443d85083d37fec32e5cc15c1001ea992d49745490065b4a023 firefox-${FFVERSION}esr.source.tar.xz |sha256sum -c -
 -
 -echo Extracting Firefox tarball
 -tar -xf firefox-${FFVERSION}esr.source.tar.xz
@@ -36,6 +37,7 @@ index aa46b94..db27a86 100644
 +# wget -N https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/${FFVERSION}esr/source/firefox-${FFVERSION}esr.source.tar.xz.asc
 +# gpg --recv-keys --keyserver keyserver.ubuntu.com 24C6F355
 +# gpg --verify firefox-${FFVERSION}esr.source.tar.xz.asc
++# echo -n 0a5f0c1d8d1e9443d85083d37fec32e5cc15c1001ea992d49745490065b4a023 firefox-${FFVERSION}esr.source.tar.xz |sha256sum -c -
 +# 
 +# echo Extracting Firefox tarball
 +# tar -xf firefox-${FFVERSION}esr.source.tar.xz
@@ -43,43 +45,6 @@ index aa46b94..db27a86 100644
 +# mv firefox-${FFVERSION} $SOURCEDIR
  
  ###############################################################################
- # Retrieve /debian from Ubuntu
- ###############################################################################
- 
--rm -rf firefox.$CODENAME
--bzr branch https://code.launchpad.net/~mozillateam/firefox/firefox.$CODENAME
--cd firefox.$CODENAME
--bzr revert -r$REVISION
--echo '3.0 (native)' > debian/source/format
--
--for PATCH in ubuntu-bookmarks.patch ubuntu-ua-string-changes.patch unity-menubar.patch ubuntu-search-defaults.patch fix-make-package-tests-without-webrtc.patch revert-upstream-search-engine-changes.patch
--do
--  rm debian/patches/$PATCH
--  sed "/$PATCH/d" -i debian/patches/series
--done
--sed "/test-/d" -i debian/patches/series
--cd ..
--
--mv firefox.$CODENAME/debian $SOURCEDIR
--rm -rf firefox.$CODENAME
-+# rm -rf firefox.$CODENAME
-+# bzr branch https://code.launchpad.net/~mozillateam/firefox/firefox.$CODENAME
-+# cd firefox.$CODENAME
-+# bzr revert -r$REVISION
-+# echo '3.0 (native)' > debian/source/format
-+# 
-+# for PATCH in ubuntu-bookmarks.patch ubuntu-ua-string-changes.patch unity-menubar.patch ubuntu-search-defaults.patch fix-make-package-tests-without-webrtc.patch revert-upstream-search-engine-changes.patch
-+# do
-+#   rm debian/patches/$PATCH
-+#   sed "/$PATCH/d" -i debian/patches/series
-+# done
-+# sed "/test-/d" -i debian/patches/series
-+# cd ..
-+# 
-+# mv firefox.$CODENAME/debian $SOURCEDIR
-+# rm -rf firefox.$CODENAME
- 
- ###############################################################################
  # Retrieve l10n
  ###############################################################################
  
@@ -133,19 +98,10 @@ index aa46b94..db27a86 100644
  
  #for patch in $DATA/patches/*; do
  #    echo Patching with file: $patch
-@@ -720,7 +720,7 @@ debian/rules debian/control
- touch -d "yesterday" debian/control
- debian/rules debian/control
- 
--echo | dch -b -D stable -v "$ICECATVERSION"  "Converted into IceCat (http://www.gnu.org/software/gnuzilla/)"
-+# echo | dch -b -D stable -v "$ICECATVERSION"  "Converted into IceCat (http://www.gnu.org/software/gnuzilla/)"
- sed "1s/firefox/icecat/" -i debian/changelog
- 
- touch configure js/src/configure
-@@ -734,6 +734,6 @@ sed 's/777/755/;' -i toolkit/crashreporter/google-breakpad/Makefile.in
+@@ -590,6 +590,6 @@ sed 's/777/755/;' -i toolkit/crashreporter/google-breakpad/Makefile.in
+ # Fix CVE-2012-3386
  /bin/sed 's/chmod a+w/chmod u+w/' -i ./js/src/ctypes/libffi/Makefile.in ./toolkit/crashreporter/google-breakpad/Makefile.in ./toolkit/crashreporter/google-breakpad/src/third_party/glog/Makefile.in || true
  
- 
 -cd ..
 -echo Packaging tarball
 -tar cfj icecat-$ICECATVERSION.tar.bz2 $SOURCEDIR
diff --git a/gnu/packages/patches/libevent-2.0-CVE-2016-10195.patch b/gnu/packages/patches/libevent-2.0-CVE-2016-10195.patch
deleted file mode 100644
index bffe2c454c..0000000000
--- a/gnu/packages/patches/libevent-2.0-CVE-2016-10195.patch
+++ /dev/null
@@ -1,41 +0,0 @@
-Fix CVE-2016-10195 (buffer overread in libevent's DNS code):
-
-https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10195
-https://github.com/libevent/libevent/issues/317
-
-Patch copied from upstream source repository:
-
-https://github.com/libevent/libevent/commit/96f64a022014a208105ead6c8a7066018449d86d
-
-From 3c570970516f48da35f42fef98276531fcc0abaa Mon Sep 17 00:00:00 2001
-From: Azat Khuzhin <a3at.mail@gmail.com>
-Date: Mon, 1 Feb 2016 17:32:09 +0300
-Subject: [PATCH] evdns: name_parse(): fix remote stack overread
-
----
- evdns.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/evdns.c b/evdns.c
-index 60b10485..137c24ea 100644
---- a/evdns.c
-+++ b/evdns.c
-@@ -960,7 +960,6 @@ name_parse(u8 *packet, int length, int *idx, char *name_out, int name_out_len) {
- 
- 	for (;;) {
- 		u8 label_len;
--		if (j >= length) return -1;
- 		GET8(label_len);
- 		if (!label_len) break;
- 		if (label_len & 0xc0) {
-@@ -981,6 +980,7 @@ name_parse(u8 *packet, int length, int *idx, char *name_out, int name_out_len) {
- 			*cp++ = '.';
- 		}
- 		if (cp + label_len >= end) return -1;
-+		if (j + label_len > length) return -1;
- 		memcpy(cp, packet + j, label_len);
- 		cp += label_len;
- 		j += label_len;
--- 
-2.11.0
-
diff --git a/gnu/packages/patches/libevent-2.0-CVE-2016-10196.patch b/gnu/packages/patches/libevent-2.0-CVE-2016-10196.patch
deleted file mode 100644
index 03f96e938b..0000000000
--- a/gnu/packages/patches/libevent-2.0-CVE-2016-10196.patch
+++ /dev/null
@@ -1,41 +0,0 @@
-Fix CVE-2016-10196 (buffer overflow in evutil):
-
-https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10196
-https://github.com/libevent/libevent/issues/318
-
-Patch copied from upstream source repository:
-
-https://github.com/libevent/libevent/commit/329acc18a0768c21ba22522f01a5c7f46cacc4d5
-
-From 28bdc2f3f62259d21ccaf7be2b60ef0a53e6f342 Mon Sep 17 00:00:00 2001
-From: Azat Khuzhin <a3at.mail@gmail.com>
-Date: Sun, 31 Jan 2016 00:57:16 +0300
-Subject: [PATCH] evutil_parse_sockaddr_port(): fix buffer overflow
-
----
- evutil.c | 6 +++---
- 1 file changed, 3 insertions(+), 3 deletions(-)
-
-diff --git a/evutil.c b/evutil.c
-index 33445170..e2dfe6e4 100644
---- a/evutil.c
-+++ b/evutil.c
-@@ -1808,12 +1808,12 @@ evutil_parse_sockaddr_port(const char *ip_as_string, struct sockaddr *out, int *
- 
- 	cp = strchr(ip_as_string, ':');
- 	if (*ip_as_string == '[') {
--		int len;
-+		size_t len;
- 		if (!(cp = strchr(ip_as_string, ']'))) {
- 			return -1;
- 		}
--		len = (int) ( cp-(ip_as_string + 1) );
--		if (len > (int)sizeof(buf)-1) {
-+		len = ( cp-(ip_as_string + 1) );
-+		if (len > sizeof(buf)-1) {
- 			return -1;
- 		}
- 		memcpy(buf, ip_as_string+1, len);
--- 
-2.11.0
-
diff --git a/gnu/packages/patches/libevent-2.0-CVE-2016-10197.patch b/gnu/packages/patches/libevent-2.0-CVE-2016-10197.patch
deleted file mode 100644
index c62a328627..0000000000
--- a/gnu/packages/patches/libevent-2.0-CVE-2016-10197.patch
+++ /dev/null
@@ -1,39 +0,0 @@
-Fix CVE-2016-10197 (out of bounds read on empty hostnames in evdns):
-
-https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10197
-https://github.com/libevent/libevent/issues/332
-
-Patch copied from upstream source repository:
-
-https://github.com/libevent/libevent/commit/ec65c42052d95d2c23d1d837136d1cf1d9ecef9e
-
-From a0305cec166a5bc89f1eb362510cc4cd25ecc0bc Mon Sep 17 00:00:00 2001
-From: Azat Khuzhin <a3at.mail@gmail.com>
-Date: Fri, 25 Mar 2016 00:33:47 +0300
-Subject: [PATCH] evdns: fix searching empty hostnames
-
----
- evdns.c | 5 ++++-
- 1 file changed, 4 insertions(+), 1 deletion(-)
-
-diff --git a/evdns.c b/evdns.c
-index 137c24ea..6191c677 100644
---- a/evdns.c
-+++ b/evdns.c
-@@ -3122,9 +3122,12 @@ search_set_from_hostname(struct evdns_base *base) {
- static char *
- search_make_new(const struct search_state *const state, int n, const char *const base_name) {
- 	const size_t base_len = strlen(base_name);
--	const char need_to_append_dot = base_name[base_len - 1] == '.' ? 0 : 1;
-+	char need_to_append_dot;
- 	struct search_domain *dom;
- 
-+	if (!base_len) return NULL;
-+	need_to_append_dot = base_name[base_len - 1] == '.' ? 0 : 1;
-+
- 	for (dom = state->head; dom; dom = dom->next) {
- 		if (!n--) {
- 			/* this is the postfix we want */
--- 
-2.11.0
-
diff --git a/gnu/packages/patches/libevent-2.0-evbuffer-add-use-last-with-datap.patch b/gnu/packages/patches/libevent-2.0-evbuffer-add-use-last-with-datap.patch
deleted file mode 100644
index 0253700bf6..0000000000
--- a/gnu/packages/patches/libevent-2.0-evbuffer-add-use-last-with-datap.patch
+++ /dev/null
@@ -1,38 +0,0 @@
-From a8769ef12d7e223e33fc47bed03fba2bfa2f3536 Mon Sep 17 00:00:00 2001
-From: Marcus Sundberg <marcus@marcussundberg.com>
-Date: Sat, 26 Mar 2016 20:11:43 +0100
-Subject: [PATCH] evbuffer_add: Use last_with_datap if set, not last.
-
-evbuffer_add() would always put data in the last chain, even if there
-was available space in a previous chain, and in doing so it also
-failed to update last_with_datap, causing subsequent calls to other
-functions that do look at last_with_datap to add data in the middle
-of the evbuffer instead of at the end.
-
-Fixes the evbuffer_add() part of issue #335, and the evbuffer/add2 and
-evbuffer/add3 tests, and also prevents wasting space available in the
-chain pointed to by last_with_datap.
----
- buffer.c | 6 +++++-
- 1 file changed, 5 insertions(+), 1 deletion(-)
-
-diff --git a/buffer.c b/buffer.c
-index 7cca0e8a..f378b731 100644
---- a/buffer.c
-+++ b/buffer.c
-@@ -1732,7 +1732,11 @@ evbuffer_add(struct evbuffer *buf, const void *data_in, size_t datlen)
- 		goto done;
- 	}
- 
--	chain = buf->last;
-+	if (*buf->last_with_datap == NULL) {
-+		chain = buf->last;
-+	} else {
-+		chain = *buf->last_with_datap;
-+	}
- 
- 	/* If there are no chains allocated for this buffer, allocate one
- 	 * big enough to hold all the data. */
--- 
-2.12.0
-
diff --git a/gnu/packages/patches/libevent-2.1-dns-tests.patch b/gnu/packages/patches/libevent-2.1-dns-tests.patch
deleted file mode 100644
index 091752a49d..0000000000
--- a/gnu/packages/patches/libevent-2.1-dns-tests.patch
+++ /dev/null
@@ -1,26 +0,0 @@
-Disable tests that rely on usable DNS lookups, which aren't available
-in build chroots.
-
---- libevent-2.0.21-stable/test/regress_dns.c	2013-01-20 22:32:09.000000000 +0100
-+++ libevent-2.0.21-stable/test/regress_dns.c	2013-01-20 22:32:30.000000000 +0100
-@@ -2120,10 +2120,6 @@
- 
- struct testcase_t dns_testcases[] = {
- 	DNS_LEGACY(server, TT_FORK|TT_NEED_BASE),
--	DNS_LEGACY(gethostbyname, TT_FORK|TT_NEED_BASE|TT_NEED_DNS|TT_OFF_BY_DEFAULT),
--	DNS_LEGACY(gethostbyname6, TT_FORK|TT_NEED_BASE|TT_NEED_DNS|TT_OFF_BY_DEFAULT),
--	DNS_LEGACY(gethostbyaddr, TT_FORK|TT_NEED_BASE|TT_NEED_DNS|TT_OFF_BY_DEFAULT),
--	{ "resolve_reverse", dns_resolve_reverse, TT_FORK|TT_OFF_BY_DEFAULT, NULL, NULL },
- 	{ "search_empty", dns_search_empty_test, TT_FORK|TT_NEED_BASE, &basic_setup, NULL },
- 	{ "search", dns_search_test, TT_FORK|TT_NEED_BASE, &basic_setup, NULL },
- 	{ "search_lower", dns_search_lower_test, TT_FORK|TT_NEED_BASE, &basic_setup, NULL },
-@@ -2163,9 +2159,6 @@
- 
- 	{ "client_fail_requests", dns_client_fail_requests_test,
- 	  TT_FORK|TT_NEED_BASE, &basic_setup, NULL },
--	{ "client_fail_requests_getaddrinfo",
--	  dns_client_fail_requests_getaddrinfo_test,
--	  TT_FORK|TT_NEED_BASE, &basic_setup, NULL },
- 
- 	END_OF_TESTCASES
- };
diff --git a/gnu/packages/patches/libevent-2.1-skip-failing-test.patch b/gnu/packages/patches/libevent-2.1-skip-failing-test.patch
deleted file mode 100644
index d9ea1d422d..0000000000
--- a/gnu/packages/patches/libevent-2.1-skip-failing-test.patch
+++ /dev/null
@@ -1,24 +0,0 @@
-These fail on 32-bit due to an overflow bug in the test program.
-
-See test/regress_util.c:1448.
-
-Upstream bug URL:
-
-https://github.com/libevent/libevent/issues/452
-
-diff --git a/test/regress_util.c b/test/regress_util.c
-index ef6a1487..4de501fc 100644
---- a/test/regress_util.c
-+++ b/test/regress_util.c
-@@ -1413,9 +1413,9 @@ static struct date_rfc1123_case {
- 	{  1323648000, "Mon, 12 Dec 2011 00:00:00 GMT"},
- #ifndef _WIN32
- 	/** In win32 case we have max   "23:59:59 January 18, 2038, UTC" for time32 */
--	{  4294967296, "Sun, 07 Feb 2106 06:28:16 GMT"} /* 2^32 */,
-+	//{  4294967296, "Sun, 07 Feb 2106 06:28:16 GMT"} /* 2^32 */,
- 	/** In win32 case we have max "23:59:59, December 31, 3000, UTC" for time64 */
--	{253402300799, "Fri, 31 Dec 9999 23:59:59 GMT"} /* long long future no one can imagine */,
-+	//{253402300799, "Fri, 31 Dec 9999 23:59:59 GMT"} /* long long future no one can imagine */,
- 	{  1456704000, "Mon, 29 Feb 2016 00:00:00 GMT"} /* leap year */,
- #endif
- 	{  1435708800, "Wed, 01 Jul 2015 00:00:00 GMT"} /* leap second */,
diff --git a/gnu/packages/patches/libevent-dns-tests.patch b/gnu/packages/patches/libevent-dns-tests.patch
deleted file mode 100644
index 6ff8aaaa7b..0000000000
--- a/gnu/packages/patches/libevent-dns-tests.patch
+++ /dev/null
@@ -1,16 +0,0 @@
-Disable tests that rely on usable DNS lookups, which aren't available
-in build chroots.
-
---- libevent-2.0.21-stable/test/regress_dns.c	2013-01-20 22:32:09.000000000 +0100
-+++ libevent-2.0.21-stable/test/regress_dns.c	2013-01-20 22:32:30.000000000 +0100
-@@ -1827,10 +1827,6 @@ end:
- 
- struct testcase_t dns_testcases[] = {
- 	DNS_LEGACY(server, TT_FORK|TT_NEED_BASE),
--	DNS_LEGACY(gethostbyname, TT_FORK|TT_NEED_BASE|TT_NEED_DNS),
--	DNS_LEGACY(gethostbyname6, TT_FORK|TT_NEED_BASE|TT_NEED_DNS),
--	DNS_LEGACY(gethostbyaddr, TT_FORK|TT_NEED_BASE|TT_NEED_DNS),
--	{ "resolve_reverse", dns_resolve_reverse, TT_FORK, NULL, NULL },
- 	{ "search", dns_search_test, TT_FORK|TT_NEED_BASE, &basic_setup, NULL },
- 	{ "search_cancel", dns_search_cancel_test,
- 	  TT_FORK|TT_NEED_BASE, &basic_setup, NULL },
diff --git a/gnu/packages/patches/polkit-CVE-2018-19788.patch b/gnu/packages/patches/polkit-CVE-2018-19788.patch
deleted file mode 100644
index 58cde6c5dc..0000000000
--- a/gnu/packages/patches/polkit-CVE-2018-19788.patch
+++ /dev/null
@@ -1,197 +0,0 @@
-Fix CVE-2018-19788:
-
-https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19788
-https://gitlab.freedesktop.org/polkit/polkit/issues/74
-
-Patch copied from upstream source repository:
-
-https://gitlab.freedesktop.org/polkit/polkit/commit/2cb40c4d5feeaa09325522bd7d97910f1b59e379
-
-From 2cb40c4d5feeaa09325522bd7d97910f1b59e379 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
-Date: Mon, 3 Dec 2018 10:28:58 +0100
-Subject: [PATCH] Allow negative uids/gids in PolkitUnixUser and Group objects
-
-(uid_t) -1 is still used as placeholder to mean "unset". This is OK, since
-there should be no users with such number, see
-https://systemd.io/UIDS-GIDS#special-linux-uids.
-
-(uid_t) -1 is used as the default value in class initialization.
-
-When a user or group above INT32_MAX is created, the numeric uid or
-gid wraps around to negative when the value is assigned to gint, and
-polkit gets confused. Let's accept such gids, except for -1.
-
-A nicer fix would be to change the underlying type to e.g. uint32 to
-not have negative values. But this cannot be done without breaking the
-API, so likely new functions will have to be added (a
-polkit_unix_user_new variant that takes a unsigned, and the same for
-_group_new, _set_uid, _get_uid, _set_gid, _get_gid, etc.). This will
-require a bigger patch.
-
-Fixes https://gitlab.freedesktop.org/polkit/polkit/issues/74.
----
- src/polkit/polkitunixgroup.c   | 15 +++++++++++----
- src/polkit/polkitunixprocess.c | 12 ++++++++----
- src/polkit/polkitunixuser.c    | 13 ++++++++++---
- 3 files changed, 29 insertions(+), 11 deletions(-)
-
-diff --git a/src/polkit/polkitunixgroup.c b/src/polkit/polkitunixgroup.c
-index c57a1aa..309f689 100644
---- a/src/polkit/polkitunixgroup.c
-+++ b/src/polkit/polkitunixgroup.c
-@@ -71,6 +71,7 @@ G_DEFINE_TYPE_WITH_CODE (PolkitUnixGroup, polkit_unix_group, G_TYPE_OBJECT,
- static void
- polkit_unix_group_init (PolkitUnixGroup *unix_group)
- {
-+  unix_group->gid = -1; /* (git_t) -1 is not a valid GID under Linux */
- }
- 
- static void
-@@ -100,11 +101,14 @@ polkit_unix_group_set_property (GObject      *object,
-                                GParamSpec   *pspec)
- {
-   PolkitUnixGroup *unix_group = POLKIT_UNIX_GROUP (object);
-+  gint val;
- 
-   switch (prop_id)
-     {
-     case PROP_GID:
--      unix_group->gid = g_value_get_int (value);
-+      val = g_value_get_int (value);
-+      g_return_if_fail (val != -1);
-+      unix_group->gid = val;
-       break;
- 
-     default:
-@@ -131,9 +135,9 @@ polkit_unix_group_class_init (PolkitUnixGroupClass *klass)
-                                    g_param_spec_int ("gid",
-                                                      "Group ID",
-                                                      "The UNIX group ID",
--                                                     0,
-+                                                     G_MININT,
-                                                      G_MAXINT,
--                                                     0,
-+                                                     -1,
-                                                      G_PARAM_CONSTRUCT |
-                                                      G_PARAM_READWRITE |
-                                                      G_PARAM_STATIC_NAME |
-@@ -166,9 +170,10 @@ polkit_unix_group_get_gid (PolkitUnixGroup *group)
-  */
- void
- polkit_unix_group_set_gid (PolkitUnixGroup *group,
--                          gint gid)
-+                           gint gid)
- {
-   g_return_if_fail (POLKIT_IS_UNIX_GROUP (group));
-+  g_return_if_fail (gid != -1);
-   group->gid = gid;
- }
- 
-@@ -183,6 +188,8 @@ polkit_unix_group_set_gid (PolkitUnixGroup *group,
- PolkitIdentity *
- polkit_unix_group_new (gint gid)
- {
-+  g_return_val_if_fail (gid != -1, NULL);
-+
-   return POLKIT_IDENTITY (g_object_new (POLKIT_TYPE_UNIX_GROUP,
-                                        "gid", gid,
-                                        NULL));
-diff --git a/src/polkit/polkitunixprocess.c b/src/polkit/polkitunixprocess.c
-index 972b777..b02b258 100644
---- a/src/polkit/polkitunixprocess.c
-+++ b/src/polkit/polkitunixprocess.c
-@@ -159,9 +159,14 @@ polkit_unix_process_set_property (GObject      *object,
-       polkit_unix_process_set_pid (unix_process, g_value_get_int (value));
-       break;
- 
--    case PROP_UID:
--      polkit_unix_process_set_uid (unix_process, g_value_get_int (value));
-+    case PROP_UID: {
-+      gint val;
-+
-+      val = g_value_get_int (value);
-+      g_return_if_fail (val != -1);
-+      polkit_unix_process_set_uid (unix_process, val);
-       break;
-+    }
- 
-     case PROP_START_TIME:
-       polkit_unix_process_set_start_time (unix_process, g_value_get_uint64 (value));
-@@ -239,7 +244,7 @@ polkit_unix_process_class_init (PolkitUnixProcessClass *klass)
-                                    g_param_spec_int ("uid",
-                                                      "User ID",
-                                                      "The UNIX user ID",
--                                                     -1,
-+                                                     G_MININT,
-                                                      G_MAXINT,
-                                                      -1,
-                                                      G_PARAM_CONSTRUCT |
-@@ -303,7 +308,6 @@ polkit_unix_process_set_uid (PolkitUnixProcess *process,
-                              gint               uid)
- {
-   g_return_if_fail (POLKIT_IS_UNIX_PROCESS (process));
--  g_return_if_fail (uid >= -1);
-   process->uid = uid;
- }
- 
-diff --git a/src/polkit/polkitunixuser.c b/src/polkit/polkitunixuser.c
-index 8bfd3a1..234a697 100644
---- a/src/polkit/polkitunixuser.c
-+++ b/src/polkit/polkitunixuser.c
-@@ -72,6 +72,7 @@ G_DEFINE_TYPE_WITH_CODE (PolkitUnixUser, polkit_unix_user, G_TYPE_OBJECT,
- static void
- polkit_unix_user_init (PolkitUnixUser *unix_user)
- {
-+  unix_user->uid = -1;  /* (uid_t) -1 is not a valid UID under Linux */
-   unix_user->name = NULL;
- }
- 
-@@ -112,11 +113,14 @@ polkit_unix_user_set_property (GObject      *object,
-                                GParamSpec   *pspec)
- {
-   PolkitUnixUser *unix_user = POLKIT_UNIX_USER (object);
-+  gint val;
- 
-   switch (prop_id)
-     {
-     case PROP_UID:
--      unix_user->uid = g_value_get_int (value);
-+      val = g_value_get_int (value);
-+      g_return_if_fail (val != -1);
-+      unix_user->uid = val;
-       break;
- 
-     default:
-@@ -144,9 +148,9 @@ polkit_unix_user_class_init (PolkitUnixUserClass *klass)
-                                    g_param_spec_int ("uid",
-                                                      "User ID",
-                                                      "The UNIX user ID",
--                                                     0,
-+                                                     G_MININT,
-                                                      G_MAXINT,
--                                                     0,
-+                                                     -1,
-                                                      G_PARAM_CONSTRUCT |
-                                                      G_PARAM_READWRITE |
-                                                      G_PARAM_STATIC_NAME |
-@@ -182,6 +186,7 @@ polkit_unix_user_set_uid (PolkitUnixUser *user,
-                           gint uid)
- {
-   g_return_if_fail (POLKIT_IS_UNIX_USER (user));
-+  g_return_if_fail (uid != -1);
-   user->uid = uid;
- }
- 
-@@ -196,6 +201,8 @@ polkit_unix_user_set_uid (PolkitUnixUser *user,
- PolkitIdentity *
- polkit_unix_user_new (gint uid)
- {
-+  g_return_val_if_fail (uid != -1, NULL);
-+
-   return POLKIT_IDENTITY (g_object_new (POLKIT_TYPE_UNIX_USER,
-                                         "uid", uid,
-                                         NULL));
--- 
-2.18.1
-
diff --git a/gnu/packages/patches/racket-store-checksum-override.patch b/gnu/packages/patches/racket-store-checksum-override.patch
index 6c9cd5198a..236c843de1 100644
--- a/gnu/packages/patches/racket-store-checksum-override.patch
+++ b/gnu/packages/patches/racket-store-checksum-override.patch
@@ -7,12 +7,8 @@ because the store is immutable.  This patch makes Racket ignore
 checksums for files in the store.
 
 See <https://debbugs.gnu.org/30680> for details.
----
- collects/compiler/private/cm-minimal.rkt | 8 +++++++-
- 1 file changed, 7 insertions(+), 1 deletion(-)
 
-diff --git a/collects/compiler/private/cm-minimal.rkt b/collects/compiler/private/cm-minimal.rkt
-index a5a5407..15af6b8 100644
+---
 --- a/collects/compiler/private/cm-minimal.rkt
 +++ b/collects/compiler/private/cm-minimal.rkt
 @@ -7,6 +7,7 @@
@@ -20,10 +16,10 @@ index a5a5407..15af6b8 100644
           racket/path
           racket/promise
 +         racket/string
-          openssl/sha1
+          file/sha1
           setup/collects
-          compiler/compilation-path
-@@ -543,6 +544,10 @@
+          setup/cross-system
+@@ -940,6 +941,10 @@
        #f
        (list src-hash recorded-hash)))
  
@@ -34,16 +30,13 @@ index a5a5407..15af6b8 100644
  (define (rkt->ss p)
    (if (path-has-extension? p #".rkt")
        (path-replace-extension p #".ss")
-@@ -595,7 +600,8 @@
-               (trace-printf "newer src... ~a > ~a" path-time path-zo-time)
-               ;; If `sha1-only?', then `maybe-compile-zo' returns a #f or thunk:
-               (maybe-compile-zo sha1-only? deps path->mode roots path orig-path read-src-syntax up-to-date collection-cache new-seen)]
--             [(different-source-sha1-and-dep-recorded path deps)
-+             [(and (not (store-reference? path))
-+                   (different-source-sha1-and-dep-recorded path deps))
-               => (lambda (difference)
-                    (trace-printf "different src hash... ~a" difference)
-                    ;; If `sha1-only?', then `maybe-compile-zo' returns a #f or thunk:
--- 
-2.18.0
-
+@@ -1015,6 +1020,7 @@
+                (trace-printf "newer src... ~a > ~a" path-time path-zo-time)
+                (maybe-compile-zo deps path->mode roots path orig-path read-src-syntax up-to-date collection-cache new-seen
+                                  #:trying-sha1? sha1-only?)]
+-              [(different-source-sha1-and-dep-recorded path deps)
++              [(and (not (store-reference? path))
++                    (different-source-sha1-and-dep-recorded path deps))
+                => (lambda (difference)
+                     (trace-printf "different src hash ~a for ~a..." difference path)
+                     (maybe-compile-zo deps path->mode roots path orig-path read-src-syntax up-to-date collection-cache new-seen
\ No newline at end of file
diff --git a/gnu/packages/patches/supertux-fix-build-with-gcc5.patch b/gnu/packages/patches/supertux-fix-build-with-gcc5.patch
new file mode 100644
index 0000000000..6393215ca1
--- /dev/null
+++ b/gnu/packages/patches/supertux-fix-build-with-gcc5.patch
@@ -0,0 +1,75 @@
+Taken from https://github.com/SuperTux/supertux/commit/a75317ef0a94847d9b6a7833b9c6652ef29edde3.
+This patch fixes building with gcc versions earlier than 6.
+
+From a75317ef0a94847d9b6a7833b9c6652ef29edde3 Mon Sep 17 00:00:00 2001
+From: Ingo Ruhnke <grumbel@gmail.com>
+Date: Fri, 28 Dec 2018 22:45:35 +0100
+Subject: [PATCH] Add workaround for backwards compatibilty with gcc5
+
+Fixes #1014
+---
+ src/video/gl/gl_painter.cpp | 11 ++++++-----
+ src/video/ttf_surface.cpp   | 16 +++++++++-------
+ 2 files changed, 15 insertions(+), 12 deletions(-)
+
+diff --git a/src/video/gl/gl_painter.cpp b/src/video/gl/gl_painter.cpp
+index 5e0d1e7b1e..32fb7a09b6 100644
+--- a/src/video/gl/gl_painter.cpp
++++ b/src/video/gl/gl_painter.cpp
+@@ -37,12 +37,13 @@ namespace {
+ 
+ inline std::tuple<GLenum, GLenum> blend_factor(Blend blend)
+ {
++  using B = std::tuple<GLenum, GLenum>;
+   switch(blend) {
+-    case Blend::NONE: return {GL_ONE, GL_ZERO};
+-    case Blend::BLEND: return {GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA};
+-    case Blend::ADD: return {GL_SRC_ALPHA, GL_ONE};
+-    case Blend::MOD: return {GL_DST_COLOR, GL_ZERO};
+-    default: return {GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA};
++    case Blend::NONE: return B(GL_ONE, GL_ZERO);
++    case Blend::BLEND: return B(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
++    case Blend::ADD: return B(GL_SRC_ALPHA, GL_ONE);
++    case Blend::MOD: return B(GL_DST_COLOR, GL_ZERO);
++    default: return B(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+   }
+ }
+ 
+diff --git a/src/video/ttf_surface.cpp b/src/video/ttf_surface.cpp
+index 7c9505004f..b41d67b2c8 100644
+--- a/src/video/ttf_surface.cpp
++++ b/src/video/ttf_surface.cpp
+@@ -55,12 +55,13 @@ TTFSurface::create(const TTFFont& font, const std::string& text)
+     SDL_SetSurfaceColorMod(text_surface.get(), 0, 0, 0);
+     SDL_SetSurfaceBlendMode(text_surface.get(), SDL_BLENDMODE_BLEND);
+ 
++    using P = std::tuple<int, int>;
+     const std::initializer_list<std::tuple<int, int> > positions[] = {
+       {},
+-      {{0, 0}},
+-      {{-1, 0}, {1, 0}, {0, -1}, {0, 1}},
+-      {{-2, 0}, {2, 0}, {0, -2}, {0, 2},
+-       {-1, -1}, {1, -1}, {-1, 1}, {1, 1}}
++      {P{0, 0}},
++      {P{-1, 0}, P{1, 0}, P{0, -1}, P{0, 1}},
++      {P{-2, 0}, P{2, 0}, P{0, -2}, P{0, 2},
++       P{-1, -1}, P{1, -1}, P{-1, 1}, P{1, 1}}
+     };
+ 
+     int shadow_size = std::min(2, font.get_shadow_size());
+@@ -77,11 +78,12 @@ TTFSurface::create(const TTFFont& font, const std::string& text)
+     SDL_SetSurfaceColorMod(text_surface.get(), 0, 0, 0);
+     SDL_SetSurfaceBlendMode(text_surface.get(), SDL_BLENDMODE_BLEND);
+ 
++    using P = std::tuple<int, int>;
+     const std::initializer_list<std::tuple<int, int> > positions[] = {
+       {},
+-      {{-1, 0}, {1, 0}, {0, -1}, {0, 1}},
+-      {{-2, 0}, {2, 0}, {0, -2}, {0, 2},
+-       {-1, -1}, {1, -1}, {-1, 1}, {1, 1}}
++      {P{-1, 0}, P{1, 0}, P{0, -1}, P{0, 1}},
++      {P{-2, 0}, P{2, 0}, P{0, -2}, P{0, 2},
++       P{-1, -1}, P{1, -1}, P{-1, 1}, P{1, 1}}
+     };
+ 
+     int border = std::min(2, font.get_border());
diff --git a/gnu/packages/patches/supertux-unbundle-squirrel.patch b/gnu/packages/patches/supertux-unbundle-squirrel.patch
new file mode 100644
index 0000000000..054183b75f
--- /dev/null
+++ b/gnu/packages/patches/supertux-unbundle-squirrel.patch
@@ -0,0 +1,53 @@
+diff -ur a/CMakeLists.txt b/CMakeLists.txt
+--- a/CMakeLists.txt	2019-05-24 17:58:19.693090158 -0400
++++ b/CMakeLists.txt	2019-05-24 17:57:43.349473252 -0400
+@@ -375,44 +375,15 @@
+ 
+ include(ConfigureChecks)
+ 
+-
+-## Also build external/squirrel
+-
+-if(NOT EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/external/squirrel/CMakeLists.txt)
+-  message(FATAL_ERROR "squirrel submodule is not checked out or ${CMAKE_CURRENT_SOURCE_DIR}/external/squirrel/CMakeLists.txt is missing")
+-endif()
+-
+ set(SQUIRREL_PREFIX ${CMAKE_BINARY_DIR}/squirrel/ex)
+-ExternalProject_Add(squirrel
+-  SOURCE_DIR "${CMAKE_SOURCE_DIR}/external/squirrel/"
+-  CMAKE_ARGS
+-  -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
+-  -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
+-  -DCMAKE_C_FLAGS=${CMAKE_C_FLAGS}
+-  -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
+-  -DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS}
+-  -DCMAKE_INSTALL_PREFIX=${SQUIRREL_PREFIX}
+-  -DINSTALL_INC_DIR=include)
+-
+-if(WIN32)
+-  add_library(squirrel_lib SHARED IMPORTED)
+-  set_target_properties(squirrel_lib PROPERTIES IMPORTED_LOCATION "${SQUIRREL_PREFIX}/bin/${CMAKE_SHARED_LIBRARY_PREFIX}squirrel${CMAKE_SHARED_LIBRARY_SUFFIX}")
+-  set_target_properties(squirrel_lib PROPERTIES IMPORTED_IMPLIB "${SQUIRREL_PREFIX}/lib/squirrel${CMAKE_LINK_LIBRARY_SUFFIX}")
+-  add_library(sqstdlib_lib SHARED IMPORTED)
+-  set_target_properties(sqstdlib_lib PROPERTIES IMPORTED_LOCATION "${SQUIRREL_PREFIX}/bin/${CMAKE_SHARED_LIBRARY_PREFIX}sqstdlib${CMAKE_SHARED_LIBRARY_SUFFIX}")
+-  set_target_properties(sqstdlib_lib PROPERTIES IMPORTED_IMPLIB "${SQUIRREL_PREFIX}/lib/sqstdlib${CMAKE_LINK_LIBRARY_SUFFIX}")
+-
+-  #For debug run purposes
+-  configure_file("${CMAKE_CURRENT_SOURCE_DIR}/mk/msvc/run_supertux.bat.in" "${PROJECT_BINARY_DIR}/run_supertux.bat")
+-else()
+-  add_library(squirrel_lib STATIC IMPORTED)
+-  set_target_properties(squirrel_lib PROPERTIES IMPORTED_LOCATION "${SQUIRREL_PREFIX}/lib/${CMAKE_STATIC_LIBRARY_PREFIX}squirrel_static${CMAKE_STATIC_LIBRARY_SUFFIX}")
+-  add_library(sqstdlib_lib STATIC IMPORTED)
+-  set_target_properties(sqstdlib_lib PROPERTIES IMPORTED_LOCATION "${SQUIRREL_PREFIX}/lib/${CMAKE_STATIC_LIBRARY_PREFIX}sqstdlib_static${CMAKE_STATIC_LIBRARY_SUFFIX}")
+-endif()
+ 
+ include_directories(SYSTEM ${SQUIRREL_PREFIX}/include)
+ 
++add_library(squirrel_lib SHARED IMPORTED)
++set_target_properties(squirrel_lib PROPERTIES IMPORTED_LOCATION "${SQUIRREL_PREFIX}/lib/${CMAKE_SHARED_LIBRARY_PREFIX}squirrel${CMAKE_SHARED_LIBRARY_SUFFIX}")
++add_library(sqstdlib_lib SHARED IMPORTED)
++set_target_properties(sqstdlib_lib PROPERTIES IMPORTED_LOCATION "${SQUIRREL_PREFIX}/lib/${CMAKE_SHARED_LIBRARY_PREFIX}sqstdlib${CMAKE_SHARED_LIBRARY_SUFFIX}")
++
+ ## Also build external/tinygettext
+ 
+ if(NOT EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/external/tinygettext/CMakeLists.txt)
diff --git a/gnu/packages/patches/txr-shell.patch b/gnu/packages/patches/txr-shell.patch
new file mode 100644
index 0000000000..a4abb73eac
--- /dev/null
+++ b/gnu/packages/patches/txr-shell.patch
@@ -0,0 +1,59 @@
+Use the current shell instead of trying to find another one and
+failing to do so.
+
+diff --git a/configure b/configure
+index f1adb919..7891b4dc 100755
+--- a/configure
++++ b/configure
+@@ -26,28 +26,6 @@
+ # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ 
+-#
+-# The #!/bin/sh might be some legacy piece of crap,
+-# not even up to 1990 POSIX.2 spec. So the first step
+-# is to look for a better shell in some known places
+-# and re-execute ourselves with that interpreter.
+-#
+-
+-if test x$txr_shell = x ; then
+-  for shell in /bin/bash /usr/bin/bash /usr/xpg4/bin/sh ; do
+-    if test -x $shell ; then
+-       txr_shell=$shell
+-       break
+-    fi
+-  done
+-  if test x$txr_shell = x ; then
+-    echo "No known POSIX shell found: falling back on /bin/sh, which may not work"
+-    txr_shell=/bin/sh
+-  fi
+-  export txr_shell
+-  exec $txr_shell $0 ${@+"$@"}
+-fi
+-
+ set -u
+ 
+ #
+@@ -190,13 +168,6 @@ while [ $# -gt 0 ] ; do
+     exit 1
+   fi
+ 
+-  eval "var_exists=\${$var+y}"
+-
+-  if [ "$var_exists" != y ] ; then
+-    printf "$0: nonexistent option: '%s'\n" "$1"
+-    exit 1
+-  fi
+-
+   eval "$var='$val'"
+ 
+   eval "var_given_exists=\${${var}_given+y}"
+@@ -208,6 +179,8 @@ while [ $# -gt 0 ] ; do
+   shift
+ done
+ 
++txr_shell=$CONFIG_SHELL
++
+ #
+ # If --help was given (or --help=<nonempty> or help=<nonempty>) then
+ # print help and exit. The termination status is failed, to indicate
diff --git a/gnu/packages/patches/usb-modeswitch-accept-config-arg.patch b/gnu/packages/patches/usb-modeswitch-accept-config-arg.patch
new file mode 100644
index 0000000000..9c050f7ee6
--- /dev/null
+++ b/gnu/packages/patches/usb-modeswitch-accept-config-arg.patch
@@ -0,0 +1,42 @@
+--- old/usb_modeswitch.tcl	1970-01-01 01:00:00.000000000 +0100
++++ usb_modeswitch.tcl	2019-06-12 08:39:42.140000000 +0200
+@@ -41,7 +41,7 @@
+ global scsi usb config match device flags setup devdir loginit
+ 
+ set flags(config) ""
+-Log "[ParseGlobalConfig]"
++Log "[ParseGlobalConfig $argv]"
+ 
+ if {$flags(stordelay) > 0} {
+ 	SetStorageDelay $flags(stordelay)
+@@ -496,9 +496,21 @@
+ # end of proc {MatchDevice}
+ 
+ 
+-proc {ParseGlobalConfig} {} {
++proc {ParseGlobalConfig} {argv} {
+ 
+ global flags
++
++set configFileParam ""
++for {set i 0} {$i < [llength $argv]} {incr i} {
++	switch -glob -- [set v [lindex $argv $i]] {
++		--config-file=* {
++			set configFileParam $v
++		}
++	}
++}
++if {$configFileParam != ""} {
++	set configFile [string range $configFileParam [string length "--config-file="] end]
++} else {
+ set configFile ""
+ set places [list /etc/usb_modeswitch.conf /etc/sysconfig/usb_modeswitch /etc/default/usb_modeswitch]
+ foreach cfg $places {
+@@ -507,6 +519,7 @@
+ 		break
+ 	}
+ }
++}
+ if {$configFile == ""} {return}
+ 
+ set rc [open $configFile r]
diff --git a/gnu/packages/patchutils.scm b/gnu/packages/patchutils.scm
index f6197b98ee..687864c008 100644
--- a/gnu/packages/patchutils.scm
+++ b/gnu/packages/patchutils.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2014, 2018 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2015, 2018 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2019 Christopher Baines <mail@cbaines.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -31,6 +32,8 @@
   #:use-module (gnu packages base)
   #:use-module (gnu packages bash)
   #:use-module (gnu packages check)
+  #:use-module (gnu packages databases)
+  #:use-module (gnu packages django)
   #:use-module (gnu packages file)
   #:use-module (gnu packages gawk)
   #:use-module (gnu packages gettext)
@@ -300,3 +303,167 @@ directories, and has support for many popular version control systems.
 Meld helps you review code changes and understand patches.  It might even help
 you to figure out what is going on in that merge you keep avoiding.")
     (license gpl2)))
+
+(define-public patchwork
+  (package
+    (name "patchwork")
+    (version "2.1.2")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/getpatchwork/patchwork.git")
+                    (commit (string-append "v" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "06ng5pv6744w98zkyfm0ldkmpdgnsql3gbbbh6awq61sr2ndr3qw"))))
+    (build-system python-build-system)
+    (arguments
+     `(;; TODO: Tests require a running database
+       #:tests? #f
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)
+         (delete 'build)
+         (add-after 'unpack 'replace-wsgi.py
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (delete-file "patchwork/wsgi.py")
+             (call-with-output-file "patchwork/wsgi.py"
+               (lambda (port)
+                 ;; Embed the PYTHONPATH containing the dependencies, as well
+                 ;; as the python modules in this package in the wsgi.py file,
+                 ;; as this will ensure they are available at runtime.
+                 (define pythonpath
+                   (string-append (getenv "PYTHONPATH")
+                                  ":"
+                                  (site-packages inputs outputs)))
+                 (display
+                  (string-append "
+import os, sys
+
+sys.path.extend('" pythonpath "'.split(':'))
+
+from django.core.wsgi import get_wsgi_application
+
+# By default, assume that patchwork is running as a Guix service, which
+# provides the settings as the 'guix.patchwork.settings' Python module.
+#
+# When using httpd, it's hard to set environment variables, so rely on the
+# default set here.
+os.environ['DJANGO_SETTINGS_MODULE'] = os.getenv(
+  'DJANGO_SETTINGS_MODULE',
+  'guix.patchwork.settings' # default
+)
+
+application = get_wsgi_application()\n") port)))))
+         (replace 'check
+           (lambda* (#:key tests? #:allow-other-keys)
+             (when tests?
+               (setenv "DJANGO_SETTINGS_MODULE" "patchwork.settings.dev")
+               (invoke "python" "-Wonce" "./manage.py" "test" "--noinput"))
+             #t))
+         (replace 'install
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out"))
+                   (out-site-packages (site-packages inputs outputs)))
+               (for-each (lambda (directory)
+                           (copy-recursively
+                            directory
+                            (string-append out-site-packages directory)))
+                         '(;; Contains the python code
+                           "patchwork"
+                           ;; Contains the templates for the generated HTML
+                           "templates"))
+               (delete-file-recursively
+                (string-append out-site-packages "patchwork/tests"))
+
+               ;; Install patchwork related tools
+               (for-each (lambda (file)
+                           (install-file file (string-append out "/bin")))
+                         (list
+                          (string-append out-site-packages
+                                         "patchwork/bin/pwclient")
+                          (string-append out-site-packages
+                                         "patchwork/bin/parsemail.sh")
+                          (string-append out-site-packages
+                                         "patchwork/bin/parsemail-batch.sh")))
+
+               ;; Delete the symlink to pwclient, and replace it with the
+               ;; actual file, as this can cause issues when serving the file
+               ;; from a webserver.
+               (let ((template-pwclient (string-append
+                                         out-site-packages
+                                         "patchwork/templates/patchwork/pwclient")))
+                 (delete-file template-pwclient)
+                 (copy-file (string-append out-site-packages
+                                           "patchwork/bin/pwclient")
+                            template-pwclient))
+
+               ;; Collect the static assets, this includes JavaScript, CSS and
+               ;; fonts. This is a standard Django process when running a
+               ;; Django application for regular use, and includes assets for
+               ;; dependencies like the admin site from Django.
+               ;;
+               ;; The intent here is that you can serve files from this
+               ;; directory through a webserver, which is recommended when
+               ;; running Django applications.
+               (let ((static-root
+                      (string-append out "/share/patchwork/htdocs")))
+                 (mkdir-p static-root)
+                 (copy-file "patchwork/settings/production.example.py"
+                            "patchwork/settings/assets.py")
+                 (setenv "DJANGO_SECRET_KEY" "dummyvalue")
+                 (setenv "DJANGO_SETTINGS_MODULE" "patchwork.settings.assets")
+                 (setenv "STATIC_ROOT" static-root)
+                 (invoke "./manage.py" "collectstatic" "--no-input"))
+
+               ;; The lib directory includes example configuration files that
+               ;; may be useful when deploying patchwork.
+               (copy-recursively "lib"
+                                 (string-append
+                                  out "/share/doc/" ,name "-" ,version)))
+             #t))
+         ;; The hasher script is used from the post-receive.hook
+         (add-after 'install 'install-hasher
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (out-site-packages (site-packages inputs outputs))
+                    (out-hasher.py (string-append out-site-packages
+                                                  "/patchwork/hasher.py")))
+               (chmod out-hasher.py #o555)
+               (symlink out-hasher.py (string-append out "/bin/hasher")))
+             #t))
+         ;; Create a patchwork specific version of Django's command line admin
+         ;; utility.
+         (add-after 'install 'install-patchwork-admin
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out")))
+               (mkdir-p (string-append out "/bin"))
+               (call-with-output-file (string-append out "/bin/patchwork-admin")
+                 (lambda (port)
+                   (simple-format port "#!~A
+import os, sys
+
+if __name__ == \"__main__\":
+    from django.core.management import execute_from_command_line
+
+    execute_from_command_line(sys.argv)" (which "python"))))
+               (chmod (string-append out "/bin/patchwork-admin") #o555))
+             #t)))))
+    (inputs
+     `(("python-wrapper" ,python-wrapper)))
+    (propagated-inputs
+     `(("python-django" ,python-django)
+       ;; TODO: Make this configurable
+       ("python-psycopg2" ,python-psycopg2)
+       ("python-mysqlclient" ,python-mysqlclient)
+       ("python-django-filter" ,python-django-filter)
+       ("python-djangorestframework" ,python-djangorestframework)
+       ("python-django-debug-toolbar" ,python-django-debug-toolbar)))
+    (synopsis "Web based patch tracking system")
+    (description
+     "Patchwork is a patch tracking system.  It takes in emails containing
+patches, and displays the patches along with comments and state information.
+Users can login allowing them to change the state of patches.")
+    (home-page "http://jk.ozlabs.org/projects/patchwork/")
+    (license gpl2+)))
diff --git a/gnu/packages/photo.scm b/gnu/packages/photo.scm
index 2bf53d1c1e..b2e3edca18 100644
--- a/gnu/packages/photo.scm
+++ b/gnu/packages/photo.scm
@@ -132,14 +132,14 @@ data as produced by digital cameras.")
 (define-public libgphoto2
   (package
     (name "libgphoto2")
-    (version "2.5.22")
+    (version "2.5.23")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://sourceforge/gphoto/libgphoto/"
                                   version "/libgphoto2-" version ".tar.bz2"))
               (sha256
                (base32
-                "0n6f6nagys775ib483nka1sbclhkm1dz3n5z3lgaz1m9m5x35mqm"))))
+                "0bc5x2bkqbfi4hbkz8ab5xc0bkks9vvks1vygxhdh3x498v27byq"))))
     (build-system gnu-build-system)
     (native-inputs `(("pkg-config" ,pkg-config)))
     (inputs
@@ -163,14 +163,14 @@ from digital cameras.")
 (define-public gphoto2
   (package
     (name "gphoto2")
-    (version "2.5.20")
+    (version "2.5.23")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://sourceforge/gphoto/gphoto/" version
                                   "/gphoto2-" version ".tar.bz2"))
               (sha256
                (base32
-                "1xj80abkzvqrd6g1j1q946lhbp03gyapyxdwbhc0y14g1ash6vx3"))))
+                "1laqwhxr0xhbykmp0dhd3j4rr2lhj5y228s31afnqxp700hhk1yz"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)))
diff --git a/gnu/packages/php.scm b/gnu/packages/php.scm
index 68043051b5..62444308db 100644
--- a/gnu/packages/php.scm
+++ b/gnu/packages/php.scm
@@ -58,7 +58,7 @@
 (define-public php
   (package
     (name "php")
-    (version "7.3.5")
+    (version "7.3.6")
     (home-page "https://secure.php.net/")
     (source (origin
               (method url-fetch)
@@ -66,7 +66,7 @@
                                   name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0wi4vd1c3ylsv7cs5b74pkspybb22qwk6fs5r2as3m3glhw1h0g1"))
+                "0r51aiff2abbr3d2swhvja0wm56sjxzqbciabcvvq3m3v9kqkz7y"))
               (modules '((guix build utils)))
               (snippet
                '(with-directory-excursion "ext"
@@ -255,6 +255,10 @@
                          ;; but the bug report suggests the issue was in
                          ;; the bundled gd, not upstream.
                          "ext/gd/tests/bug77272.phpt"
+                         ;; Expected invalid XBM but got EOF before image was
+                         ;; complete.  It's a warning in both cases and test
+                         ;; result is the same.
+                         "ext/gd/tests/bug77973.phpt"
 
                          ;; XXX: These iconv tests have the expected outcome,
                          ;; but with different error messages.
diff --git a/gnu/packages/polkit.scm b/gnu/packages/polkit.scm
index ccb8ebf8f8..ac24adef43 100644
--- a/gnu/packages/polkit.scm
+++ b/gnu/packages/polkit.scm
@@ -43,16 +43,15 @@
 (define-public polkit
   (package
     (name "polkit")
-    (version "0.115")
+    (version "0.116")
     (source (origin
              (method url-fetch)
              (uri (string-append
                    "https://www.freedesktop.org/software/polkit/releases/"
                    name "-" version ".tar.gz"))
-             (patches (search-patches "polkit-CVE-2018-19788.patch"))
              (sha256
               (base32
-               "0c91y61y4gy6p91cwbzg32dhavw4b7fflg370rimqhdxpzdfr1rg"))
+               "1c9lbpndh5zis22f154vjrhnqw65z8s85nrgl42v738yf6g0q5w8"))
              (modules '((guix build utils)))
              (snippet
               '(begin
@@ -90,7 +89,7 @@
      `(("expat" ,expat)
        ("linux-pam" ,linux-pam)
        ("elogind" ,elogind)
-       ("mozjs" ,mozjs-52)
+       ("mozjs" ,mozjs-60)
        ("nspr" ,nspr)))
     (propagated-inputs
      `(("glib" ,glib))) ; required by polkit-gobject-1.pc
@@ -101,6 +100,9 @@
        ("gobject-introspection" ,gobject-introspection)))
     (arguments
      `(#:configure-flags '("--sysconfdir=/etc"
+                           ;; XXX: MozJS 60 requires the C++11 ABI or higher.
+                           ;; Remove when the default compiler is >= GCC 6.
+                           "CXXFLAGS=-std=gnu++11"
                            "--enable-man-pages")
        #:phases
        (modify-phases %standard-phases
diff --git a/gnu/packages/python-crypto.scm b/gnu/packages/python-crypto.scm
index 6248be0c9b..d9065e8b15 100644
--- a/gnu/packages/python-crypto.scm
+++ b/gnu/packages/python-crypto.scm
@@ -357,14 +357,14 @@ is used by the Requests library to verify HTTPS requests.")
 (define-public python-cryptography-vectors
   (package
     (name "python-cryptography-vectors")
-    (version "2.6.1")
+    (version "2.7")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "cryptography_vectors" version))
        (sha256
         (base32
-         "1bsqcv3h49dzqnyn29ijq8r7k1ra8ikl1y9qcpcns9nbvhaq3wq3"))))
+         "1g38zw90510azyfrj6mxbslx2gp9yrnv5dac0w2819k9ssdznbgi"))))
     (build-system python-build-system)
     (home-page "https://github.com/pyca/cryptography")
     (synopsis "Test vectors for the cryptography package")
@@ -379,14 +379,14 @@ is used by the Requests library to verify HTTPS requests.")
 (define-public python-cryptography
   (package
     (name "python-cryptography")
-    (version "2.6.1")
+    (version "2.7")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "cryptography" version))
        (sha256
         (base32
-         "19iwz5avym5zl6jrrrkym1rdaa9h61j20ph4cswsqgv8xg5j3j16"))))
+         "1inlnr36kl36551c9rcad99jmhk81v33by3glkadwdcgmi17fd76"))))
     (build-system python-build-system)
     (inputs
      `(("openssl" ,openssl)))
diff --git a/gnu/packages/python-web.scm b/gnu/packages/python-web.scm
index f889e50590..41585c0022 100644
--- a/gnu/packages/python-web.scm
+++ b/gnu/packages/python-web.scm
@@ -57,6 +57,7 @@
   #:use-module (gnu packages curl)
   #:use-module (gnu packages databases)
   #:use-module (gnu packages django)
+  #:use-module (gnu packages groff)
   #:use-module (gnu packages libffi)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages python)
@@ -1541,6 +1542,19 @@ supports url redirection and retries, and also gzip and deflate decoding.")
       (base32
        "0sispclx263lybbk19zp1n9yhg8xxx4jddypzgi24vpjaqnsbwlc"))))
    (build-system python-build-system)
+   (arguments
+    ;; FIXME: The 'pypi' release does not contain tests.
+    '(#:tests? #f
+      #:phases
+      (modify-phases %standard-phases
+        (add-after 'unpack 'fix-reference-to-groff
+          (lambda _
+            (substitute* "awscli/help.py"
+              (("if not self._exists_on_path\\('groff'\\):") "")
+              (("raise ExecutableNotFoundError\\('groff'\\)") "")
+              (("cmdline = \\['groff'")
+               (string-append "cmdline = ['" (which "groff") "'")))
+            #t)))))
    (propagated-inputs
     `(("python-colorama" ,python-colorama)
       ("python-botocore" ,python-botocore)
@@ -1548,9 +1562,8 @@ supports url redirection and retries, and also gzip and deflate decoding.")
       ("python-docutils" ,python-docutils)
       ("python-pyyaml" ,python-pyyaml)
       ("python-rsa" ,python-rsa)))
-   (arguments
-    ;; FIXME: The 'pypi' release does not contain tests.
-    '(#:tests? #f))
+   (inputs
+    `(("groff" ,groff)))
    (home-page "https://aws.amazon.com/cli/")
    (synopsis "Command line client for AWS")
    (description "AWS CLI provides a unified command line interface to the
@@ -1647,13 +1660,13 @@ minimum of WSGI.")
 (define-public python-flask
   (package
     (name "python-flask")
-    (version "1.0.2")
+    (version "1.0.3")
     (source (origin
               (method url-fetch)
-              (uri (pypi-uri "flask" version))
+              (uri (pypi-uri "Flask" version))
               (sha256
                (base32
-                "0j6f4a9rpfh25k1gp7azqhnni4mb4fgy50jammgjgddw1l3w0w92"))))
+                "1wxnhjlxwwjhjxmghykjhllpahv5pkdc5hln4ab6nab43s26sz5d"))))
     (build-system python-build-system)
     (arguments
      '(#:phases
diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index a921d2aab8..ee6e3df6dd 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -157,14 +157,14 @@
 (define-public python-psutil
   (package
     (name "python-psutil")
-    (version "5.4.3")
+    (version "5.6.2")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "psutil" version))
        (sha256
         (base32
-         "063v69x7spyclyaxrd3gmzj3p16q5ayg97xqhwb1kyn22a9pwip2"))))
+         "1v95vb5385qscfdvphv8l2w22bmir3d7yhpi02n58v3mlqy1r3l2"))))
     (build-system python-build-system)
     (arguments
      ;; FIXME: some tests does not return and times out.
@@ -193,14 +193,14 @@ pidof, tty, taskset, pmap.")
 (define-public python-shapely
   (package
     (name "python-shapely")
-    (version "1.6.3")
+    (version "1.6.4.post2")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "Shapely" version))
        (sha256
         (base32
-         "0svc58dzcw9gj92b4sgq35sdxkf85z0qwlzxarkzq4bp3h8jy58l"))))
+         "03r42fmd9alp6r3q95ad6rldq2f7n1wimrw53zy5kpn33yv7pf64"))))
     (build-system python-build-system)
     (native-inputs
      `(("python-cython" ,python-cython)
@@ -3170,7 +3170,7 @@ provides additional functionality on the produced Mallard documents.")
          (replace 'check
            (lambda _
              (invoke "python" "runtests.py" "-vv"))))))
-    (home-page "http://cython.org/")
+    (home-page "https://cython.org/")
     (synopsis "C extensions for Python")
     (description "Cython is an optimising static compiler for both the Python
 programming language and the extended Cython programming language.  It makes
@@ -5388,14 +5388,14 @@ libxml2 and libxslt.")
 (define-public python-beautifulsoup4
   (package
     (name "python-beautifulsoup4")
-    (version "4.6.3")
+    (version "4.7.1")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "beautifulsoup4" version))
        (sha256
         (base32
-         "041dhalzjciw6qyzzq7a2k4h1yvyk76xigp35hv5ibnn448ydy4h"))))
+         "0j2kycz2dxgx68xzjm7rxg5xn6v61gq5ifvxyg99slmqkybnal4l"))))
     (build-system python-build-system)
     (arguments
      `(#:phases
@@ -5407,6 +5407,8 @@ libxml2 and libxslt.")
          ;; distribution.
          (replace 'check
            (lambda _ (invoke "./convert-py3k"))))))
+    (propagated-inputs
+     `(("python-soupsieve" ,python-soupsieve)))
     (home-page
      "https://www.crummy.com/software/BeautifulSoup/bs4/")
     (synopsis
@@ -5450,14 +5452,17 @@ Soup 4.  It aims to provide selecting, matching, and filtering using modern
 CSS selectors.  Soup Sieve currently provides selectors from the CSS level 1
 specifications up through the latest CSS level 4 drafts and beyond (though
 some are not yet implemented).")
+    (properties `((python2-variant . ,(delay python2-soupsieve))))
     (license license:expat)))
 
 (define-public python2-soupsieve
-  (let ((base (package-with-python2 python-soupsieve)))
+  (let ((base (package-with-python2 (strip-python2-variant python-soupsieve))))
     (package
       (inherit base)
       (propagated-inputs
-       `(("python2-backports-functools-lru-cache" ,python2-backports-functools-lru-cache))))))
+       `(("python2-backports-functools-lru-cache"
+          ,python2-backports-functools-lru-cache)
+         ,@(package-propagated-inputs base))))))
 
 (define-public python-netifaces
   (package
@@ -12139,7 +12144,7 @@ current test, while only declaring the test-specific fields")
      ;; 'parse_funcs'
      ;; during test setup.
      `(#:tests? #f))
-    (home-page "http://toolkit.translatehouse.org")
+    (home-page "https://toolkit.translatehouse.org")
     (synopsis "Tools and API for translation and localization engineering")
     (description
      "Tools and API for translation and localization engineering.  It contains
diff --git a/gnu/packages/regex.scm b/gnu/packages/regex.scm
index f37fb064a2..a64944080b 100644
--- a/gnu/packages/regex.scm
+++ b/gnu/packages/regex.scm
@@ -30,7 +30,7 @@
 (define-public re2
    (package
      (name "re2")
-     (version "2019-04-01")
+     (version "2019-06-01")
      (home-page "https://github.com/google/re2")
      (source (origin
                (method git-fetch)
@@ -38,7 +38,7 @@
                (file-name (git-file-name name version))
                (sha256
                 (base32
-                 "018b8z3fgcr02rmhxdz80r363k40938cbgmk1c9b46k6xkc4q0hd"))))
+                 "01613z66wgiffdngbq3031rwd92jf87j93h7y5mn8hlx19gg5k4j"))))
      (build-system gnu-build-system)
      (arguments
       `(#:modules ((guix build gnu-build-system)
diff --git a/gnu/packages/scheme.scm b/gnu/packages/scheme.scm
index 3e5ab72f20..9962cbdcb5 100644
--- a/gnu/packages/scheme.scm
+++ b/gnu/packages/scheme.scm
@@ -437,7 +437,7 @@ implementation techniques and as an expository tool.")
 (define-public racket
   (package
     (name "racket")
-    (version "7.0")
+    (version "7.3")
     (source (origin
               (method url-fetch)
               (uri (list (string-append "http://mirror.racket-lang.org/installers/"
@@ -447,7 +447,7 @@ implementation techniques and as an expository tool.")
                           version "/racket-" version "-src.tgz")))
               (sha256
                (base32
-                "1glv5amsp9xp480d4yr63hhm9kkyav06yl3a6p489nkr4cln0j9a"))
+                "0h6072njhb87rkz4arijvahxgjzn8r14s4wns0ijvxm89bg136yl"))
               (patches (search-patches
                         "racket-store-checksum-override.patch"))))
     (build-system gnu-build-system)
diff --git a/gnu/packages/sdl.scm b/gnu/packages/sdl.scm
index 2e8cec8ffb..b6b28b7d06 100644
--- a/gnu/packages/sdl.scm
+++ b/gnu/packages/sdl.scm
@@ -6,7 +6,7 @@
 ;;; Copyright © 2016, 2017 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2017, 2018, 2019 Rutger Helling <rhelling@mykolab.com>
 ;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
-;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2019 Kei Kebreau <kkebreau@posteo.net>
 ;;; Copyright © 2019 Nicolas Goaziou <mail@nicolasgoaziou.fr>
 ;;;
@@ -523,15 +523,14 @@ sound and device input (keyboards, joysticks, mice, etc.).")
 (define-public guile-sdl2
   (package
     (name "guile-sdl2")
-    (version "0.3.1")
+    (version "0.4.0")
     (source (origin
               (method url-fetch)
-              (uri (string-append
-                    "https://files.dthompson.us/guile-sdl2/guile-sdl2-"
-                    version ".tar.gz"))
+              (uri (string-append "https://files.dthompson.us/guile-sdl2/"
+                                  "guile-sdl2-" version ".tar.gz"))
               (sha256
                (base32
-                "0bw7x2lx90k4banc5k7yfkn3as93y25gr1xdr225ll7lmij21k64"))))
+                "0zcxwgyadwpbhq6h5mv2569c3kalgra26zc186y9fqiyyzmh1v9s"))))
     (build-system gnu-build-system)
     (arguments
      '(#:make-flags '("GUILE_AUTO_COMPILE=0")
diff --git a/gnu/packages/shells.scm b/gnu/packages/shells.scm
index 9ed983db98..49152dc3fd 100644
--- a/gnu/packages/shells.scm
+++ b/gnu/packages/shells.scm
@@ -10,6 +10,7 @@
 ;;; Copyright © 2017, 2018 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2017 Arun Isaac <arunisaac@systemreboot.net>
 ;;; Copyright © 2019 Meiyo Peng <meiyo.peng@gmail.com>
+;;; Copyright © 2019 Timothy Sample <samplet@ngyro.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -34,6 +35,7 @@
   #:use-module (gnu packages bison)
   #:use-module (gnu packages documentation)
   #:use-module (gnu packages groff)
+  #:use-module (gnu packages guile)
   #:use-module (gnu packages libbsd)
   #:use-module (gnu packages libedit)
   #:use-module (gnu packages ncurses)
@@ -789,3 +791,38 @@ is commonly written.")
     (home-page "https://www.oilshell.org/")
     (license (list psfl ; The Oil sources include a patched Python 2 source tree
                    asl2.0))))
+
+(define-public gash
+  (package
+    (name "gash")
+    (version "0.1")
+    (source
+     (origin (method url-fetch)
+             (uri (string-append "mirror://savannah/gash/gash-"
+                                 version ".tar.gz"))
+             (sha256
+              (base32
+               "00m3lif64zyxd41cnk208kc81nl6qz659676qgiaqgwrw0brzrid"))
+             (modules '((guix build utils)))
+             (snippet
+              '(begin
+                 (substitute* "Makefile.in"
+                   (("^moddir = (.*)/guile/(.*)" _ before after)
+                    (string-append "moddir = " before "/guile/site/"
+                                   after))
+                   (("^ccachedir = (.*)/ccache/(.*)" _ before after)
+                    (string-append "ccachedir = " before
+                                   "/site-ccache/" after)))
+                 #t))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("guile" ,guile-2.2)))
+    (home-page "https://savannah.nongnu.org/projects/gash/")
+    (synopsis "POSIX-compatible shell written in Guile Scheme")
+    (description "Gash is a POSIX-compatible shell written in Guile
+Scheme.  It provides both the shell interface, as well as a Guile
+library for parsing shell scripts.  Gash is designed to bootstrap Bash
+as part of the Guix bootstrap process.")
+    (license gpl3+)))
diff --git a/gnu/packages/slang.scm b/gnu/packages/slang.scm
index 185d441919..5a37480f67 100644
--- a/gnu/packages/slang.scm
+++ b/gnu/packages/slang.scm
@@ -2,7 +2,7 @@
 ;;; Copyright © 2015 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2015 Eric Bavier <bavier@member.fsf.org>
-;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -87,14 +87,14 @@ slsh, which is part of the S-Lang distribution.")
 (define-public newt
   (package
     (name "newt")
-    (version "0.52.20")
+    (version "0.52.21")
     (source (origin
               (method url-fetch)
-              (uri (string-append "https://pagure.io/releases/"
-                                  name "/" name "-" version ".tar.gz"))
+              (uri (string-append "https://pagure.io/releases/newt/"
+                                  "newt-" version ".tar.gz"))
               (sha256
                (base32
-                "1g3dpfnvaw7vljbr7nzq1rl88d6r8cmrvvng9inphgzwxxmvlrld"))))
+                "0cdvbancr7y4nrj8257y5n45hmhizr8isynagy4fpsnpammv8pi6"))))
     (build-system gnu-build-system)
     (outputs '("out" "python"))
     (inputs
diff --git a/gnu/packages/squirrel.scm b/gnu/packages/squirrel.scm
index 1da0ad9fe3..2c3ed6e570 100644
--- a/gnu/packages/squirrel.scm
+++ b/gnu/packages/squirrel.scm
@@ -19,37 +19,65 @@
 (define-module (gnu packages squirrel)
   #:use-module (gnu packages)
   #:use-module (gnu packages cmake)
+  #:use-module (gnu packages sphinx)
   #:use-module (guix build-system cmake)
-  #:use-module (guix git-download)
+  #:use-module (guix download)
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix build utils)
   #:use-module (guix packages)
   #:use-module (guix utils))
 
 (define-public squirrel
-  (let ((commit "51137b84e66c4d526809fd8a59f4ba1d38138c76"))
-    (package
-      (name "squirrel")
-      (version "3.1")
-      (source (origin
-                (method git-fetch)
-                (uri (git-reference
-                      (url "https://github.com/albertodemichelis/squirrel.git")
-                      (commit commit)))
-                (file-name (string-append name "-" version "-checkout"))
-                (sha256
-                 (base32
-                  "0vbiv1q3qcy2vj8y0b9a2ckswl9ld398n3jnxijvwddrjgya5zav"))))
-      (build-system cmake-build-system)
-      (arguments
-       '(#:tests? #f)) ; no tests
-      (native-inputs
-       `(("cmake" ,cmake)))
-      (home-page "https://squirrel-lang.org/")
-      (synopsis "High level imperative, object-oriented programming language")
-      (description
-       "Squirrel is a high level imperative, object-oriented programming
+  (package
+    (name "squirrel")
+    (version "3.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://sourceforge/squirrel/squirrel3/"
+                                  "squirrel " version " stable/squirrel_"
+                                  (string-join (string-split version #\.) "_")
+                                  "_stable.tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "1jyh1523zrrnh9swanfrda0s14mvwc9431dh07g0nx74hbxsfia8"))))
+    (build-system cmake-build-system)
+    (arguments
+     '(#:configure-flags '("-DDISABLE_STATIC=ON")
+       #:tests? #f ; no tests
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'install 'install-documentation
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (doc-dir (string-append out "/share/doc/squirrel")))
+               (for-each
+                (lambda (file)
+                  (install-file (string-append "../squirrel3/" file) doc-dir))
+                '("COPYRIGHT" "HISTORY" "README"
+                  "doc/sqstdlib3.pdf" "doc/squirrel3.pdf")))
+             #t))
+         (add-after 'install 'install-headers
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (include-dir (string-append out "/include/squirrel")))
+               (mkdir-p include-dir)
+               (for-each
+                (lambda (header-file)
+                  (copy-recursively header-file
+                                    (string-append include-dir
+                                                   "/"
+                                                   (basename header-file))))
+                (find-files "../squirrel3/include")))
+             #t)))))
+    (native-inputs
+     `(("cmake" ,cmake)
+       ("python-sphinx" ,python-sphinx)))
+    (home-page "https://squirrel-lang.org/")
+    (synopsis "High level imperative, object-oriented programming language")
+    (description
+     "Squirrel is a high level imperative, object-oriented programming
 language, designed to be a light-weight scripting language that fits in the
 size, memory bandwidth, and real-time requirements of applications like video
 games.")
-      (license license:expat))))
+    (license license:expat)))
diff --git a/gnu/packages/statistics.scm b/gnu/packages/statistics.scm
index 06f0aa1e75..156a329627 100644
--- a/gnu/packages/statistics.scm
+++ b/gnu/packages/statistics.scm
@@ -1327,13 +1327,13 @@ for template use among CRAN packages.")
 (define-public r-evaluate
   (package
     (name "r-evaluate")
-    (version "0.13")
+    (version "0.14")
     (source (origin
               (method url-fetch)
               (uri (cran-uri "evaluate" version))
               (sha256
                (base32
-                "0igvc27rsqxcswjb9slnpi5d509rffxn1y5d82hgqvv970nl3p2q"))))
+                "0a2y7j534gbgixkwj9r1z76l2vssw4g1hznzbpclc076wkdqpj58"))))
     (build-system r-build-system)
     (home-page "https://github.com/hadley/evaluate")
     (synopsis "Parsing and evaluation tools for R")
@@ -1404,13 +1404,13 @@ data derived from /etc/mime.types in UNIX-type systems.")
 (define-public r-markdown
   (package
     (name "r-markdown")
-    (version "0.9")
+    (version "1.0")
     (source (origin
               (method url-fetch)
               (uri (cran-uri "markdown" version))
               (sha256
                (base32
-                "08xzs4bcf12jxp0276m6xqvq8kcgg5qp6fxrvsz6r9x73jjccs1h"))))
+                "19nrz0ba1yd5kicd65crkkz2r3kialm2hm6zdkp495l2s5r80b8p"))))
     (build-system r-build-system)
     ;; Skip check phase because the tests require the r-knitr package to be
     ;; installed. This prevents installation failures. Knitr normally
@@ -1670,14 +1670,14 @@ like tidy evaluation.")
 (define-public r-tibble
   (package
     (name "r-tibble")
-    (version "2.1.1")
+    (version "2.1.3")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "tibble" version))
        (sha256
         (base32
-         "111jl0hdjhh7hkydxvsr5l19gb0ylxq7xrkc28awnc9pzglpgis5"))))
+         "06jfayiip8j8ibdhw3fvxn4n8aqbqhwanrszpzlsf92xdfgfm34s"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-cli" ,r-cli)
@@ -1731,14 +1731,14 @@ database.")
 (define-public r-dbplyr
   (package
     (name "r-dbplyr")
-    (version "1.4.0")
+    (version "1.4.1")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "dbplyr" version))
        (sha256
         (base32
-         "0f4gfkzl07gfwihyc747kdnzxahaw2g28wli4jmikrvczldvjqjx"))))
+         "15fs66qq2p20gi3y2jlcsw27ach8rwkkkgr1mz2qbiyddbsjks6g"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-assertthat" ,r-assertthat)
@@ -2333,14 +2333,14 @@ collation, and NAMESPACE files.")
 (define-public r-openssl
   (package
     (name "r-openssl")
-    (version "1.3")
+    (version "1.4")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "openssl" version))
        (sha256
         (base32
-         "1gx4mk7js1irzkql5rgk48ja9c6mm28ccxz483ngbhdd57az90qw"))))
+         "0mh4xwb9wnn5j2n1zzmjldqjqv2nn4wdidiixxciaqrqsi0l9834"))))
     (build-system r-build-system)
     (inputs
      `(("libressl" ,libressl)))
@@ -2695,14 +2695,14 @@ certain criterion, e.g., it contains a certain regular file.")
 (define-public r-rmarkdown
   (package
     (name "r-rmarkdown")
-    (version "1.12")
+    (version "1.13")
     (source
       (origin
         (method url-fetch)
         (uri (cran-uri "rmarkdown" version))
         (sha256
           (base32
-            "0milpdaf4nd36kq6sci9wc5dhwswl4w9c9fychfbppgjsgfp6kfv"))))
+            "1vv3b8nlw8ra19492rjg3na42lwh3xr5a2jy2ia81fvvs846pywn"))))
     (properties `((upstream-name . "rmarkdown")))
     (build-system r-build-system)
     (propagated-inputs
@@ -2714,6 +2714,7 @@ certain criterion, e.g., it contains a certain regular file.")
        ("r-mime" ,r-mime)
        ("r-stringr" ,r-stringr)
        ("r-tinytex" ,r-tinytex)
+       ("r-xfun" ,r-xfun)
        ("r-yaml" ,r-yaml)
        ("ghc-pandoc" ,ghc-pandoc)))
     (home-page "http://rmarkdown.rstudio.com")
@@ -2881,13 +2882,13 @@ ldap, and also supports cookies, redirects, authentication, etc.")
 (define-public r-xml
   (package
     (name "r-xml")
-    (version "3.98-1.19")
+    (version "3.98-1.20")
     (source (origin
               (method url-fetch)
               (uri (cran-uri "XML" version))
               (sha256
                (base32
-                "1axyfa56q45x7z4zd56aasdn9hz9niv2vv5qm1zp9i94vyic9cc1"))))
+                "0n28m8iz1wfgixr7fjswl238c5w9kggsrw0c8hdzp859dqvqdbs6"))))
     (properties
      `((upstream-name . "XML")))
     (build-system r-build-system)
@@ -3364,14 +3365,14 @@ Stochastic Neighbor Embedding using a Barnes-Hut implementation.")
 (define-public r-e1071
   (package
     (name "r-e1071")
-    (version "1.7-1")
+    (version "1.7-2")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "e1071" version))
        (sha256
         (base32
-         "1zlxz3da216q6v6r4ff60il121xwz7g7m639vzdwglhw3jjh8psw"))))
+         "0lipj692rjjw8rrhqh2k9i5dh8y2sjrw9q53rwm32irhx2f2j73j"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-class" ,r-class)))
@@ -4314,13 +4315,13 @@ mechanism.")
 (define-public r-zoo
   (package
     (name "r-zoo")
-    (version "1.8-5")
+    (version "1.8-6")
     (source (origin
               (method url-fetch)
               (uri (cran-uri "zoo" version))
               (sha256
                (base32
-                "09p8gmd5ifz80ahnhiianarsr5xx3nz76jzp90d7v3fjffcrcww7"))))
+                "1k1pmzr9nfwbxq1xf0jzn3nawv4sgnkxkgzxnm1i887jcbrs85r2"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-lattice" ,r-lattice)))
@@ -4470,13 +4471,13 @@ Wall Street Journal, among others.  This package also provides
 (define-public r-statmod
   (package
     (name "r-statmod")
-    (version "1.4.30")
+    (version "1.4.32")
     (source (origin
               (method url-fetch)
               (uri (cran-uri "statmod" version))
               (sha256
                (base32
-                "07v4x8af60alcw6vbiwf5fp25bhra61kvxz9kqx64lszm0i1fb4x"))))
+                "083yyp84xj85zg4bhz7i90bqzl3p6155ch4abwsfc9k1lv7s2rrg"))))
     (build-system r-build-system)
     (home-page "https://cran.r-project.org/web/packages/statmod")
     (native-inputs
@@ -4771,14 +4772,14 @@ and resampling-based inference.")
 (define-public r-prabclus
   (package
     (name "r-prabclus")
-    (version "2.2-7")
+    (version "2.3-1")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "prabclus" version))
        (sha256
         (base32
-         "0h2nml8ri27mhfs2p6ngb6kfd6lyq30sc6813yybpskkrb6gs1pb"))))
+         "1h5k13w8mmmdy74l145zh64f339wy78z1nlg8xr3zg23gmv98cpg"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-mass" ,r-mass)
@@ -4967,14 +4968,14 @@ of the points.")
 (define-public r-fpc
   (package
     (name "r-fpc")
-    (version "2.1-11.2")
+    (version "2.2-2")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "fpc" version))
        (sha256
         (base32
-         "0wjjp9xn283acfg6cm1wa6fsi7pf0z97227hrnlpmprks3mbj8kr"))))
+         "1lzqxi2jzc753j4356b949isx2nccd32mw2ch665q78nxccp145n"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-class" ,r-class)
@@ -4986,8 +4987,7 @@ of the points.")
        ("r-mclust" ,r-mclust)
        ("r-mvtnorm" ,r-mvtnorm)
        ("r-prabclus" ,r-prabclus)
-       ("r-robustbase" ,r-robustbase)
-       ("r-trimcluster" ,r-trimcluster)))
+       ("r-robustbase" ,r-robustbase)))
     (home-page "https://cran.r-project.org/web/packages/fpc")
     (synopsis "Flexible procedures for clustering")
     (description
@@ -5139,14 +5139,14 @@ using modular prediction and response module classes.")
 (define-public r-quantreg
   (package
     (name "r-quantreg")
-    (version "5.38")
+    (version "5.40")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "quantreg" version))
        (sha256
         (base32
-         "1vvvnk291f0dccg04l3nsnk585gq75sk0b2vdbrqv3lczvv18nw1"))))
+         "1srni6lkgvy44ljxndz2j9ca702z2wy81f6z6mbbi6h06ni11qw6"))))
     (build-system r-build-system)
     (native-inputs
      `(("gfortran" ,gfortran)))
@@ -5270,14 +5270,14 @@ Companion to Applied Regression, Third Edition, Sage.")
 (define-public r-car
   (package
     (name "r-car")
-    (version "3.0-2")
+    (version "3.0-3")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "car" version))
        (sha256
         (base32
-         "0l3wyc9ia0ypcbap2p39slazfpbl84mjzydqvpsywrzdiyxajnfz"))))
+         "0vy3g3bjljd2al8xb9qr45f98is7yppc9jilqn7b6zvf5yqpr07s"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-abind" ,r-abind)
@@ -5377,14 +5377,14 @@ are computed via non-Monte Carlo methods.")
 (define-public r-numderiv
   (package
     (name "r-numderiv")
-    (version "2016.8-1")
+    (version "2016.8-1.1")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "numDeriv" version))
        (sha256
         (base32
-         "07ni52rwiap4wilfz94w5mrqaxr59axxmgn57857ip4p6qkiss0v"))))
+         "0idk02pqkziik932bd8k72d1q775g1is3m4bc861pcxfz6gx3i6q"))))
     (properties `((upstream-name . "numDeriv")))
     (build-system r-build-system)
     (home-page "https://cran.r-project.org/web/packages/numDeriv")
diff --git a/gnu/packages/storage.scm b/gnu/packages/storage.scm
index 25c27d6a9d..4f3fa05aa7 100644
--- a/gnu/packages/storage.scm
+++ b/gnu/packages/storage.scm
@@ -55,14 +55,14 @@
 (define-public ceph
   (package
     (name "ceph")
-    (version "13.2.5")
+    (version "13.2.6")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://download.ceph.com/tarballs/ceph-"
                                   version ".tar.gz"))
               (sha256
                (base32
-                "0jbs6l763clbqnq2s5jksn44yf71rhcnk85cw64fqvmv0r4ch71n"))
+                "13f5qs7jpxprplk4irwlx90mc9gvm48fvd3q471xcqc3n6z1qywz"))
               (patches
                (search-patches "ceph-skip-unittest_blockdev.patch"
                                "ceph-skip-collect-sys-info-test.patch"
diff --git a/gnu/packages/syncthing.scm b/gnu/packages/syncthing.scm
index acc9eda152..cd3dd0de54 100644
--- a/gnu/packages/syncthing.scm
+++ b/gnu/packages/syncthing.scm
@@ -30,7 +30,7 @@
 (define-public syncthing
   (package
     (name "syncthing")
-    (version "1.1.2")
+    (version "1.1.4")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/syncthing/syncthing"
@@ -38,7 +38,7 @@
                                   "/syncthing-source-v" version ".tar.gz"))
               (sha256
                (base32
-                "0x2203xa4fxadj7ra7l2ac285j3gi1qgghpkssl4hkcq0kjmxqrk"))
+                "0pkb9vdb10lnlk6sgg6hxgkdjnvxx90cfdf8vgrc5sljzm5qhr6l"))
               (modules '((guix build utils)))
               ;; Delete bundled ("vendored") free software source code.
               (snippet '(begin
@@ -418,7 +418,7 @@ address of the default LAN gateway.")
 (define-public go-github-com-lib-pq
   (package
     (name "go-github-com-lib-pq")
-    (version "1.0.0")
+    (version "1.1.1")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -427,7 +427,7 @@ address of the default LAN gateway.")
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "1zqnnyczaf00xi6xh53vq758v5bdlf0iz7kf22l02cal4i6px47i"))))
+                "0g64wlg1l1ybq4x44idksl4pgm055s58jxc6r6x4qhqm5q76h0km"))))
     (build-system go-build-system)
     (arguments
      `(#:import-path "github.com/lib/pq"
@@ -443,7 +443,7 @@ database/sql package.")
 (define-public go-github-com-oschwald-geoip2-golang
   (package
     (name "go-github-com-oschwald-geoip2-golang")
-    (version "1.1.0")
+    (version "1.3.0")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -452,7 +452,7 @@ database/sql package.")
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "0v698bzs8lb59cqpsa9cf4sl8rdsvnnmaravhbfn6g6i511ppclr"))))
+                "0jivzl15jb8n16rm1b2w97kf7vna5dd3kcz865wfi233qay075j2"))))
     (build-system go-build-system)
     (propagated-inputs
      `(("go-github-com-oschwald-maxminddb-golang"
diff --git a/gnu/packages/tbb.scm b/gnu/packages/tbb.scm
index b8f324274a..5e427ffe63 100644
--- a/gnu/packages/tbb.scm
+++ b/gnu/packages/tbb.scm
@@ -28,7 +28,7 @@
 (define-public tbb
   (package
     (name "tbb")
-    (version "2019_U6")
+    (version "2019_U8")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -37,7 +37,7 @@
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "1zbf06l659vq6s5wp3ln96ycwcd42caffan5vilqvqyxqvjljyic"))
+                "0z0kh1a5g28gckcxlv3x7qqskh5fsl8knf2ypbbvk7z9ln9k3wfq"))
               (modules '((guix build utils)))
               (snippet
                '(begin
diff --git a/gnu/packages/terminals.scm b/gnu/packages/terminals.scm
index 84454b2e0e..f742e86a6b 100644
--- a/gnu/packages/terminals.scm
+++ b/gnu/packages/terminals.scm
@@ -924,7 +924,7 @@ tmux.")
 (define-public kitty
   (package
     (name "kitty")
-    (version "0.13.3")
+    (version "0.14.2")
     (home-page "https://sw.kovidgoyal.net/kitty/")
     (source
      (origin
@@ -935,7 +935,7 @@ tmux.")
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "1y0vd75j8g61jdj8miml79w5ri3pqli5rv9iq6zdrxvzfa4b2rmb"))
+         "15iv3k7iryf10n8n67d37x24pzcarq97a3dr42lbld00k1lx19az"))
        (modules '((guix build utils)))
        (snippet
         '(begin
diff --git a/gnu/packages/tls.scm b/gnu/packages/tls.scm
index 1052d588f3..eb853da1bf 100644
--- a/gnu/packages/tls.scm
+++ b/gnu/packages/tls.scm
@@ -259,7 +259,7 @@ required structures.")
 (define-public openssl
   (package
    (name "openssl")
-   (version "1.1.1b")
+   (version "1.1.1c")
    (source (origin
              (method url-fetch)
              (uri (list (string-append "https://www.openssl.org/source/openssl-"
@@ -271,7 +271,7 @@ required structures.")
                                        "/openssl-" version ".tar.gz")))
              (sha256
               (base32
-               "0jza8cmznnyiia43056dij1jdmz62dx17wsn0zxksh9h6817nmaw"))
+               "142c7zdlz06hjrrvinb9f276czc78bnkyhd9xma621qmmmwk1yzn"))
              (patches (search-patches "openssl-1.1-c-rehash-in.patch"))))
    (build-system gnu-build-system)
    (outputs '("out"
diff --git a/gnu/packages/tmux.scm b/gnu/packages/tmux.scm
index c1e136915b..730cb421de 100644
--- a/gnu/packages/tmux.scm
+++ b/gnu/packages/tmux.scm
@@ -140,7 +140,7 @@ windows.")
 (define-public tmux-xpanes
   (package
     (name "tmux-xpanes")
-    (version "4.1.0")
+    (version "4.1.1")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -149,7 +149,7 @@ windows.")
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "11yz6rh2ckd1z8q80n8giv2gcz2i22fgf3pnfxq96qrzflb0d96a"))))
+                "13q02vdk229chgbn547wwv29cj4njvz02lmw840g8qmwh73qb2pi"))))
     (build-system trivial-build-system)
     (inputs
      `(("bash" ,bash)))
diff --git a/gnu/packages/usb-modeswitch.scm b/gnu/packages/usb-modeswitch.scm
new file mode 100644
index 0000000000..8f1cf9df60
--- /dev/null
+++ b/gnu/packages/usb-modeswitch.scm
@@ -0,0 +1,166 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2019 Florian Pelz <pelzflorian@pelzflorian.de>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages usb-modeswitch)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix build-system trivial)
+  #:use-module (gnu packages)
+  #:use-module (gnu packages base)
+  #:use-module (gnu packages compression)
+  #:use-module (gnu packages embedded)
+  #:use-module (gnu packages libusb)
+  #:use-module (gnu packages pkg-config))
+
+(define-public usb-modeswitch-data
+  (package
+    (name "usb-modeswitch-data")
+    (version "20170806")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "http://www.draisberghof.de/usb_modeswitch/"
+                    "usb-modeswitch-data-" version ".tar.bz2"))
+              (sha256
+               (base32
+                "0b1wari3aza6qjggqd0hk2zsh93k1q8scgmwh6f8wr0flpr3whff"))))
+    (build-system trivial-build-system)
+    (native-inputs `(("tar" ,tar)
+                     ("bzip2" ,bzip2)))
+    (arguments
+     `(#:modules ((guix build utils))
+       #:builder
+       (begin
+         (use-modules (guix build utils))
+         (let* ((source (assoc-ref %build-inputs "source"))
+                (tar (assoc-ref %build-inputs "tar"))
+                (bzip2 (assoc-ref %build-inputs "bzip2"))
+                (files (string-append "usb-modeswitch-data-"
+                                      ,(package-version this-package)))
+                (share-dir (string-append %output "/share"))
+                (doc-dir (string-append share-dir "/doc/"))
+                (license-dir (string-append doc-dir
+                                            (strip-store-file-name %output)))
+                (udev-dir (string-append %output "/udev")))
+           (copy-file source "data.tar.bz2")
+           (invoke (string-append bzip2 "/bin/bzip2") "-d" "data.tar.bz2")
+           (invoke (string-append tar "/bin/tar") "xvf" "data.tar")
+           (copy-recursively (string-append files "/usb_modeswitch.d")
+                             (string-append share-dir "/usb_modeswitch.d"))
+           (install-file (string-append files "/40-usb_modeswitch.rules")
+                         udev-dir)
+           (install-file (string-append files "/COPYING") license-dir)))))
+    (home-page "http://www.draisberghof.de/usb_modeswitch/")
+    (synopsis "Data package for USB_ModeSwitch")
+    (description "This packages contains data about devices and a UDEV rules
+file for use with USB_ModeSwitch.")
+    (license license:gpl2+)))
+
+(define-public usb-modeswitch
+  (package
+    (name "usb-modeswitch")
+    (version "2.5.2")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "http://www.draisberghof.de/usb_modeswitch/"
+                    "usb-modeswitch-" version ".tar.bz2"))
+              (sha256
+               (base32
+                "19ifi80g9ns5dmspchjvfj4ykxssq9yrci8m227dgb3yr04srzxb"))
+              (modules '((guix build utils)))
+              (snippet
+               ;; Remove bundled jimtcl.
+               '(begin
+                  (delete-file-recursively "jim")
+                  #t))
+              (patches
+               (search-patches "usb-modeswitch-accept-config-arg.patch"))))
+    (native-inputs `(("pkg-config" ,pkg-config)))
+    (inputs `(("libusb" ,libusb)
+              ("jimtcl" ,jimtcl)
+              ("usb-modeswitch-data" ,usb-modeswitch-data)))
+    (outputs '("out" "dispatcher"))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:tests? #f                    ; does not support `make check`
+       #:make-flags (list "CC=gcc")
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)          ; no configure script
+         (replace 'install
+           (lambda* (#:key source outputs inputs #:allow-other-keys)
+             (let* ((source (assoc-ref inputs "source"))
+                    (jimtcl (assoc-ref inputs "jimtcl"))
+                    (data (assoc-ref inputs "usb-modeswitch-data"))
+                    (out (assoc-ref outputs "out"))
+                    (bin (string-append out "/bin"))
+                    (man1 (string-append out "/share/man/man1"))
+                    (dispatcher-out (assoc-ref outputs "dispatcher"))
+                    (udev (string-append dispatcher-out "/lib/udev"))
+                    (etc (string-append dispatcher-out "/etc"))
+                    (dispatcher-bin (string-append dispatcher-out "/bin"))
+                    (dispatcher-man1 (string-append dispatcher-out
+                                                    "/share/man/man1")))
+               (begin
+                 ;; Users can install the default output and
+                 ;; usb-modeswitch-data and then modeswitch their USB device
+                 ;; by running e.g.:
+                 ;;
+                 ;;   sudo usb_modeswitch -c \
+                 ;;   ~/.guix-profile/share/usb_modeswitch.d/12d1\:14fe \
+                 ;;   -v 0x12d1 -p 0x14fe
+                 ;;
+                 ;; But it is simpler to use the usb-modeswitch-service-type
+                 ;; that installs a UDEV rules file which invokes a shell
+                 ;; script in lib/udev (also called `usb_modeswitch' like the
+                 ;; main binary) which, in turn, invokes the program
+                 ;; `usb_modeswitch_dispatcher'.  Normal users should not
+                 ;; invoke this dispatcher directly, so it is a separate output.
+                 (install-file "usb_modeswitch" bin)
+                 (install-file "usb_modeswitch.conf" etc)
+                 (install-file "usb_modeswitch.1" man1)
+                 (install-file "usb_modeswitch_dispatcher.1" dispatcher-man1)
+
+                 (substitute* "usb_modeswitch.sh"
+                   (("PATH=") "PATH=$PATH:") ; we do not want hardcoded FHS path
+                   (("init_path=") "init_path=/does/not/exist")) ; no /sbin/init
+                 (rename-file "usb_modeswitch.sh" "usb_modeswitch")
+                 (install-file "usb_modeswitch" udev)
+
+                 (rename-file "usb_modeswitch.tcl" "usb_modeswitch_dispatcher")
+                 (substitute* "usb_modeswitch_dispatcher"
+                   (("/usr/bin/tclsh")
+                    (string-append jimtcl "/bin/jimsh"))
+                   (("/usr/sbin") bin)
+                   (("/usr/share/usb_modeswitch")
+                    (string-append data "/share/usb_modeswitch.d")))
+                 (install-file "usb_modeswitch_dispatcher"
+                               dispatcher-bin)
+                 #t)))))))
+    (home-page "http://www.draisberghof.de/usb_modeswitch/")
+    (synopsis "Mode switching tool for controlling `multi-mode' USB devices")
+    (description "USB_ModeSwitch is a mode switching tool for controlling USB
+devices with multiple @dfn{modes}.  When plugged in for the first time many
+USB devices (primarily high-speed WAN modems) act like a flash storage
+containing installers for Windows drivers.  USB_ModeSwitch replays the
+sequence the Windows drivers would send to switch their mode from storage to
+modem (or whatever the thing is supposed to do).")
+    (license license:gpl2+)))
diff --git a/gnu/packages/version-control.scm b/gnu/packages/version-control.scm
index 938fdac227..410de1cbba 100644
--- a/gnu/packages/version-control.scm
+++ b/gnu/packages/version-control.scm
@@ -146,14 +146,14 @@ as well as the classic centralized workflow.")
    (name "git")
    ;; XXX When updating Git, check if the special 'git-source' input to cgit
    ;; needs to be updated as well.
-   (version "2.21.0")
+   (version "2.22.0")
    (source (origin
             (method url-fetch)
             (uri (string-append "mirror://kernel.org/software/scm/git/git-"
                                 version ".tar.xz"))
             (sha256
              (base32
-              "0a0d0b07rmvs985zpndxxy0vzr0vq53kq5kyd68iv6gf8gkirjwc"))))
+              "17zj6jwx3s6bybd290f1mj5iym1r64560rmnf0p63x4akxclp7hm"))))
    (build-system gnu-build-system)
    (native-inputs
     `(("native-perl" ,perl)
@@ -166,7 +166,7 @@ as well as the classic centralized workflow.")
                 version ".tar.xz"))
           (sha256
            (base32
-            "0lgcynqbjmfsvhfk14jvqyvb1xiyqgkgznb707vha38wjcjdqs1g"))))
+            "0fpfqw0h4g4v478fscic8z714i0ls5w7946vzhmq31lf7nizsb2f"))))
       ;; For subtree documentation.
       ("asciidoc" ,asciidoc)
       ("docbook-xsl" ,docbook-xsl)
diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm
index c5b83c8c8c..8a0dc29cc5 100644
--- a/gnu/packages/video.scm
+++ b/gnu/packages/video.scm
@@ -671,14 +671,14 @@ SMPTE 314M.")
 (define-public libmatroska
   (package
     (name "libmatroska")
-    (version "1.5.0")
+    (version "1.5.2")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "https://dl.matroska.org/downloads/"
                            "libmatroska/libmatroska-" version ".tar.xz"))
        (sha256
-        (base32 "07md2gvy3x92ym2k449740mdji6mhknlajkndnhi507s4wcdrvzh"))))
+        (base32 "0qn9lfs0877wbv581yxw2gywxywxpvwslc5q07q4f7bqpyzxxiha"))))
     (build-system cmake-build-system)
     (inputs
      `(("libebml" ,libebml)))
@@ -1013,7 +1013,7 @@ videoformats depend on the configuration flags of ffmpeg.")
 (define-public vlc
   (package
     (name "vlc")
-    (version "3.0.6")
+    (version "3.0.7")
     (source (origin
              (method url-fetch)
              (uri (string-append
@@ -1022,7 +1022,7 @@ videoformats depend on the configuration flags of ffmpeg.")
                    "/vlc-" version ".tar.xz"))
              (sha256
               (base32
-               "1lvyyahv6g9zv7m5g5qinyrwmw47zdsd5ysimb862j7kw15nvh8q"))))
+               "05irswyg9acflxzy4vfyvgi643r72vsvagv118zawjqg1wagxdaw"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("flex" ,flex)
@@ -1446,7 +1446,7 @@ access to mpv's powerful playback capabilities.")
 (define-public youtube-dl
   (package
     (name "youtube-dl")
-    (version "2019.05.11")
+    (version "2019.05.20")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/rg3/youtube-dl/releases/"
@@ -1454,7 +1454,7 @@ access to mpv's powerful playback capabilities.")
                                   version ".tar.gz"))
               (sha256
                (base32
-                "1y272jgdqwhf2njzqfln80zb2pmw83rvp6lxza6wghb7cld249j1"))))
+                "18xwdfvpkqrnj0kb8xj8hgwhgiqpv7x7x7zzr4x3vynb9grcv9m8"))))
     (build-system python-build-system)
     (arguments
      ;; The problem here is that the directory for the man page and completion
@@ -1565,7 +1565,7 @@ other site that youtube-dl supports.")
 (define-public you-get
   (package
     (name "you-get")
-    (version "0.4.1270")
+    (version "0.4.1302")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -1574,7 +1574,7 @@ other site that youtube-dl supports.")
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "123g6x8sh32v4yn4ss55lfw7j79hgl3l6aiwgrk4ndq7dzhnz46q"))))
+                "1fwwzslv1vpjr8q0fq10dbngr8zai1n3d6na700cgpky4j9y0y99"))))
     (build-system python-build-system)
     (inputs
      `(("ffmpeg" ,ffmpeg)))             ; for multi-part and >=1080p videos
@@ -2192,14 +2192,14 @@ tools, XML authoring components, and an extensible plug-in based API.")
 (define-public v4l-utils
   (package
     (name "v4l-utils")
-    (version "1.12.5")
+    (version "1.16.6")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://linuxtv.org/downloads/v4l-utils"
                                   "/v4l-utils-" version ".tar.bz2"))
               (sha256
                (base32
-                "03g2b4rivrilimcp57mwrlsa3qvrxmk4sza08mygwmqbvcnic606"))))
+                "1bkqlrizx0j2rd6ybam2x17bjrpwzl4v4szmnzm3cmixis3w3npr"))))
     (build-system gnu-build-system)
     (arguments
      '(#:configure-flags
@@ -2862,7 +2862,7 @@ many codecs and formats supported by libmediainfo.")
 (define-public livemedia-utils
   (package
     (name "livemedia-utils")
-    (version "2019.03.06")
+    (version "2019.05.29")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2870,10 +2870,10 @@ many codecs and formats supported by libmediainfo.")
                     version ".tar.gz"))
               (sha256
                (base32
-                "1gasdl95yjabv811knkmy5laj21a54z1jdfq36jdj984k1nw5l0b"))))
+                "08i63jr8ihn1xiq5z5n3yls3yz6li5sg0s454l56p5bcvbrw81my"))))
     (build-system gnu-build-system)
     (arguments
-     '(#:tests? #f ; no tests
+     '(#:tests? #f                      ; no tests
        #:make-flags (list "CC=gcc"
                           (string-append "LDFLAGS=-Wl,-rpath="
                                          (assoc-ref %outputs "out") "/lib")
diff --git a/gnu/packages/vim.scm b/gnu/packages/vim.scm
index 8789060b3c..7f2db9980e 100644
--- a/gnu/packages/vim.scm
+++ b/gnu/packages/vim.scm
@@ -6,6 +6,7 @@
 ;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2019 HiPhish <hiphish@posteo.de>
+;;; Copyright © 2019 Julien Lepiller <julien@lepiller.eu>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -30,6 +31,7 @@
   #:use-module (guix git-download)
   #:use-module (guix build-system cmake)
   #:use-module (guix build-system gnu)
+  #:use-module (guix build-system python)
   #:use-module (gnu packages)
   #:use-module (gnu packages acl)
   #:use-module (gnu packages admin) ; For GNU hostname
@@ -52,6 +54,7 @@
   #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages python)
+  #:use-module (gnu packages python-xyz)
   #:use-module (gnu packages ruby)
   #:use-module (gnu packages serialization)
   #:use-module (gnu packages shells)
@@ -730,7 +733,7 @@ are detected, the user is notified.")))
 (define-public neovim
   (package
     (name "neovim")
-    (version "0.3.5")
+    (version "0.3.7")
     (source
      (origin
        (method git-fetch)
@@ -740,7 +743,7 @@ are detected, the user is notified.")))
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "113lrr9gwimvvzlkwlishm4cjqcf30xq9jfxn7vh41ckgnbiwf3w"))))
+         "1j6w5jvq5v7kf7diad91qs1acr427nidnk9s24yyrz0hwdd1c2lh"))))
     (build-system cmake-build-system)
     (arguments
      `(#:modules ((srfi srfi-26)
@@ -888,3 +891,29 @@ from the @command{vi}-editor:
 @end enumerate
 With the package comes a plugin to use vifm as a vim file selector.")
     (license license:gpl2+)))
+
+(define-public python-pynvim
+  (package
+    (name "python-pynvim")
+    (version "0.3.2")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "pynvim" version))
+              (sha256
+               (base32
+                "01dybk4vs452pljn1q3il5z2sd313ki0lgiglc0xmjc6wp290r6g"))))
+    (build-system python-build-system)
+    (propagated-inputs
+     `(("python-greenlet" ,python-greenlet)
+       ("python-msgpack" ,python-msgpack)))
+    (arguments
+     `(#:tests? #f))
+    (home-page "https://github.com/neovim/pynvim")
+    (synopsis "Python client and plugin host for neovim")
+    (description "Pynvim implements support for python plugins in neovim.  It
+also works as a library for connecting to and scripting neovim processes
+through its msgpack-rpc API.")
+    (license license:asl2.0)))
+
+(define-public python2-pynvim
+  (package-with-python2 python-pynvim))
diff --git a/gnu/packages/vpn.scm b/gnu/packages/vpn.scm
index 0c607e60c8..fdcd4521e8 100644
--- a/gnu/packages/vpn.scm
+++ b/gnu/packages/vpn.scm
@@ -456,14 +456,14 @@ The peer-to-peer VPN implements a Layer 2 (Ethernet) network between the peers
 (define-public wireguard
   (package
     (name "wireguard")
-    (version "0.0.20190406")
+    (version "0.0.20190601")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://git.zx2c4.com/WireGuard/snapshot/"
                                   "WireGuard-" version ".tar.xz"))
               (sha256
                (base32
-                "0ns1s31mfkj7nmapsnx126rj7xlydv7jv8infx5fg58byynz61ig"))))
+                "0s2mys78whsr0yw045a132iqx6nfy3c6hppiskbln5x04hc4ca3m"))))
     (build-system gnu-build-system)
     (outputs '("out" ; The WireGuard userspace tools
                "kernel-patch")) ; A patch to build Linux with WireGuard support
diff --git a/gnu/packages/vulkan.scm b/gnu/packages/vulkan.scm
index 2e5605657e..6b151f0a31 100644
--- a/gnu/packages/vulkan.scm
+++ b/gnu/packages/vulkan.scm
@@ -271,7 +271,7 @@ API.")
 (define-public shaderc
   (package
     (name "shaderc")
-    (version "2018.0")
+    (version "2019.0")
     (source
      (origin
        (method git-fetch)
@@ -281,7 +281,7 @@ API.")
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "0qigmj0riw43pgjn5f6kpvk72fajssz1lc2aiqib5qvmj9rqq3hl"))))
+         "1l5mmyxhzsbp0a6y2d86i8jmf46c6bjgjkdgkr5l8hmhflmm7gi2"))))
     (build-system meson-build-system)
     (arguments
      `(#:tests? #f ; FIXME: Tests fail.
diff --git a/gnu/packages/wget.scm b/gnu/packages/wget.scm
index 4940156db5..2c1562fb49 100644
--- a/gnu/packages/wget.scm
+++ b/gnu/packages/wget.scm
@@ -31,12 +31,13 @@
   #:use-module (gnu packages gettext)
   #:use-module (gnu packages gnunet)
   #:use-module (gnu packages libidn)
-  #:use-module (gnu packages python)
-  #:use-module (gnu packages perl)
-  #:use-module (gnu packages web)
   #:use-module (gnu packages pcre)
+  #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages python)
   #:use-module (gnu packages tls)
+  #:use-module (gnu packages web)
+  #:use-module (gnu packages xdisorg)
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix git-download)
@@ -102,7 +103,7 @@ in downloaded documents to relative links.")
            (lambda _
              (substitute* "wgetpaste"
                ((" poundpython\"") "\"")
-               (("-poundpython") "-dpaste"))
+               (("-poundpython") "-bpaste")) ; dpaste blocks tor users
              #t))
          (replace 'install
            (lambda* (#:key outputs #:allow-other-keys)
@@ -123,11 +124,12 @@ in downloaded documents to relative links.")
                    ,(delete-duplicates
                      (map (lambda (command) (dirname (which command)))
                           (list "bash" "mktemp" "sed" "sort" "tee" "tr"
-                                "wget")))))
+                                "wget" "xclip")))))
                #t))))
        #:tests? #f))                    ; no test target
     (inputs
-     `(("wget" ,wget)))
+     `(("wget" ,wget)
+       ("xclip" ,xclip)))
     (home-page "http://wgetpaste.zlin.dk/")
     (synopsis "Script that automates pasting to a number of pastebin services")
     (description
diff --git a/gnu/packages/wine.scm b/gnu/packages/wine.scm
index 59716928f5..63916d1cc3 100644
--- a/gnu/packages/wine.scm
+++ b/gnu/packages/wine.scm
@@ -4,7 +4,7 @@
 ;;; Copyright © 2016, 2017, 2018 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2017, 2018, 2019 Rutger Helling <rhelling@mykolab.com>
 ;;; Copyright © 2017 Nicolas Goaziou <mail@nicolasgoaziou.fr>
-;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -310,7 +310,7 @@ integrate Windows applications into your desktop.")
 (define-public wine-staging-patchset-data
   (package
     (name "wine-staging-patchset-data")
-    (version "4.8")
+    (version "4.10")
     (source
      (origin
        (method git-fetch)
@@ -320,7 +320,7 @@ integrate Windows applications into your desktop.")
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "0npm44zdys78qbqqyvjczqqjdgacpsfds3jxyy1y4yj2xjqzagsq"))))
+         "0kl5718c4xk8d1va1jb5jaa2n0vw3l0hi6bpc7siaww1fp64hy98"))))
     (build-system trivial-build-system)
     (native-inputs
      `(("bash" ,bash)
@@ -366,7 +366,7 @@ integrate Windows applications into your desktop.")
               (file-name (string-append name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0dd1vw3bq47ypdpflgmmbi68pjw5z3wz26kfwvnkxqbp28fapfa8"))))
+                "041d3km85iqbshspy9av1fxjwq18xldrb18j04xl2fmpv1hq3pas"))))
     (inputs `(("autoconf" ,autoconf) ; for autoreconf
               ("faudio" ,faudio)
               ("ffmpeg" ,ffmpeg)
diff --git a/gnu/packages/wm.scm b/gnu/packages/wm.scm
index 01c30c8198..f0589e98f1 100644
--- a/gnu/packages/wm.scm
+++ b/gnu/packages/wm.scm
@@ -1140,7 +1140,7 @@ functionality to display information about the most commonly used services.")
 (define-public wlroots
   (package
     (name "wlroots")
-    (version "0.5.0")
+    (version "0.6.0")
     (source
      (origin
        (method git-fetch)
@@ -1149,7 +1149,7 @@ functionality to display information about the most commonly used services.")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "1phiidyddzgaxy4gbqwmykxn0y8za6y5mp66l9dpd9i6fml153yq"))))
+        (base32 "1rdcmll5b8w242n6yfjpsaprq280ck2jmbz46dxndhignxgda7k4"))))
     (build-system meson-build-system)
     (arguments
      `(#:configure-flags '("-Dlogind-provider=elogind")
@@ -1185,7 +1185,7 @@ modules for building a Wayland compositor.")
 (define-public sway
   (package
     (name "sway")
-    (version "1.0")
+    (version "1.1.1")
     (source
      (origin
        (method git-fetch)
@@ -1194,7 +1194,7 @@ modules for building a Wayland compositor.")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "09cndc2nl39d3l7g5634xp0pxcz60pvc5277mfw89r22mh0j78rx"))))
+        (base32 "0yhn9zdg9mzfhn97c440lk3pw6122nrhx0is5sqmvgr6p814f776"))))
     (build-system meson-build-system)
     (arguments
      `(#:phases
@@ -1231,7 +1231,7 @@ modules for building a Wayland compositor.")
 (define-public swayidle
   (package
     (name "swayidle")
-    (version "1.2")
+    (version "1.3")
     (source
      (origin
        (method git-fetch)
@@ -1240,7 +1240,7 @@ modules for building a Wayland compositor.")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "0b65flajwn2i6k2kdxxgw25w7ikzzmm595f4j5x1wac1rb0yah9w"))))
+        (base32 "04agcbhc473jkk7npb40i94ny8naykxzpjcw2lvl05kxv65y5d9v"))))
     (build-system meson-build-system)
     (inputs `(("wayland" ,wayland)))
     (native-inputs `(("pkg-config" ,pkg-config)
@@ -1254,7 +1254,7 @@ modules for building a Wayland compositor.")
 (define-public swaylock
   (package
     (name "swaylock")
-    (version "1.3")
+    (version "1.4")
     (source
      (origin
        (method git-fetch)
@@ -1263,7 +1263,7 @@ modules for building a Wayland compositor.")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "093nv1y9wyg48rfxhd36qdljjry57v1vkzrlc38mkf6zvsq8j7wb"))))
+        (base32 "1ii9ql1mxkk2z69dv6bg1x22nl3a46iww764wqjiv78x08xpk982"))))
     (build-system meson-build-system)
     (inputs `(("cairo" ,cairo)
               ("gdk-pixbuf" ,gdk-pixbuf)
@@ -1279,3 +1279,29 @@ modules for building a Wayland compositor.")
     (synopsis "Screen locking utility for Wayland compositors")
     (description "Swaylock is a screen locking utility for Wayland compositors.")
     (license license:expat))) ; MIT license
+
+(define-public swaybg
+  (package
+    (name "swaybg")
+    (version "1.0")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/swaywm/swaybg.git")
+             (commit version)))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "1lmqz5bmig90gq2m7lwf02d2g7z4hzf8fhqz78c8vk92c6p4xwbc"))))
+    (build-system meson-build-system)
+    (inputs `(("cairo" ,cairo)
+              ("gdk-pixbuf" ,gdk-pixbuf)
+              ("wayland" ,wayland)))
+    (native-inputs `(("git" ,git)
+                     ("pkg-config" ,pkg-config)
+                     ("scdoc" ,scdoc)
+                     ("wayland-protocols" ,wayland-protocols)))
+    (home-page "https://github.com/swaywm/sway")
+    (synopsis "Screen wallpaper utility for Wayland compositors")
+    (description "Swaybg is a wallpaper utility for Wayland compositors.")
+    (license license:expat))) ; MIT license
diff --git a/gnu/packages/xfce.scm b/gnu/packages/xfce.scm
index c3ddf9f866..c518508360 100644
--- a/gnu/packages/xfce.scm
+++ b/gnu/packages/xfce.scm
@@ -1023,3 +1023,45 @@ the libburnia libraries.  It can blank CD/DVD/BD(-RW)s, burn and
 create iso images, audio CDs, as well as burn personal compositions
 of data to either CD/DVD/BD.")
     (license gpl2+)))
+
+(define-public mousepad
+  (package
+    (name "mousepad")
+    (version "0.4.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "http://archive.xfce.org/src/apps/mousepad/"
+                                  (version-major+minor version) "/mousepad-"
+                                  version ".tar.bz2"))
+              (sha256
+               (base32
+                "12si6fvhp68wz4scr339c23jxqq5ywn5nf4w55jld5lxjadkg9rr"))))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:configure-flags '("--enable-gtk3"
+                           ;; Use the GSettings keyfile backend rather than
+                           ;; DConf.
+                           "--enable-keyfile-settings")
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'install 'wrap-program
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out"))
+                   (gtksourceview (assoc-ref inputs "gtksourceview")))
+              (wrap-program (string-append out "/bin/mousepad")
+                ;; For language-specs.
+                `("XDG_DATA_DIRS" ":" prefix (,(string-append gtksourceview
+                                                              "/share")))))
+             #t)))))
+    (native-inputs
+     `(("intltool" ,intltool)
+       ("glib" ,glib "bin") ; for glib-compile-schemas.
+       ("pkg-config" ,pkg-config)))
+    (inputs
+     `(("gtk+" ,gtk+)
+       ("gtksourceview" ,gtksourceview-3)))
+    (home-page "https://git.xfce.org/apps/mousepad/")
+    (synopsis "Simple text editor for Xfce")
+    (description
+     "Mousepad is a graphical text editor for Xfce based on Leafpad.")
+    (license gpl2+)))
diff --git a/gnu/packages/xml.scm b/gnu/packages/xml.scm
index 32bbec2181..ee454251a0 100644
--- a/gnu/packages/xml.scm
+++ b/gnu/packages/xml.scm
@@ -85,14 +85,14 @@ things the parser might find in the XML document (like start tags).")
 (define-public libebml
   (package
     (name "libebml")
-    (version "1.3.7")
+    (version "1.3.9")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "https://dl.matroska.org/downloads/libebml/"
                            "libebml-" version ".tar.xz"))
        (sha256
-        (base32 "1x79b35dj5d2x7xf7ql83w2cr0v5n2vsd08q6y6grmw4yn3lq973"))))
+        (base32 "0j65r6i7s2k67c8f9wa653mqpxmfhdl67kjxrc1n5910ig6wddn6"))))
     (build-system cmake-build-system)
     (arguments
      `(#:configure-flags
@@ -1086,7 +1086,7 @@ C++ programming language.")
 (define-public tinyxml2
   (package
     (name "tinyxml2")
-    (version "4.0.1")
+    (version "7.0.1")
     (source
      (origin
        (method git-fetch)
@@ -1095,10 +1095,8 @@ C++ programming language.")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "1a0skfi8rzk53qcxbv88qlvhlqzvsvg4hm20dnx4zw7vrn6anr9y"))))
+        (base32 "1sf6sch1kawrna2f9dc8f4xl836acqcddkghzdib0s7dl48m9r7m"))))
     (build-system cmake-build-system)
-    (arguments
-     `(#:tests? #f))                    ; no tests
     (synopsis "Small XML parser for C++")
     (description "TinyXML2 is a small and simple XML parsing library for the
 C++ programming language.")
diff --git a/gnu/packages/xorg.scm b/gnu/packages/xorg.scm
index ed718c5539..68501139e0 100644
--- a/gnu/packages/xorg.scm
+++ b/gnu/packages/xorg.scm
@@ -5079,7 +5079,7 @@ over Xlib, including:
 (define-public xorg-server
   (package
     (name "xorg-server")
-    (version "1.20.4")
+    (version "1.20.5")
     (source
       (origin
         (method url-fetch)
@@ -5088,7 +5088,7 @@ over Xlib, including:
               "xorg-server-" version ".tar.bz2"))
         (sha256
          (base32
-          "1vk6j7hmigfill9x8m7a6vvgb3s50ji2yf6yprbgqfz9xf9x83zy"))
+          "17dc3g8cc55nbkx3np64dsz04n621dnzjmcc9wys0xbyyd1q47d8"))
         (patches
          (list
           ;; See:
@@ -5210,7 +5210,16 @@ draggable titlebars and borders.")
 (define-public xorg-server-for-tests
   (hidden-package
    (package
-     (inherit xorg-server))))
+     (inherit xorg-server)
+     (version "1.20.4")
+     (source (origin
+               (inherit (package-source xorg-server))
+               (uri (string-append
+                     "mirror://xorg/individual/xserver/"
+                     "xorg-server-" version ".tar.bz2"))
+               (sha256
+                (base32
+                 "1vk6j7hmigfill9x8m7a6vvgb3s50ji2yf6yprbgqfz9xf9x83zy")))))))
 
 (define-public xorg-server-xwayland
   (package
diff --git a/gnu/services/auditd.scm b/gnu/services/auditd.scm
new file mode 100644
index 0000000000..8a9292015f
--- /dev/null
+++ b/gnu/services/auditd.scm
@@ -0,0 +1,54 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2019 Danny Milosavljevic <dannym@scratchpost.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu services auditd)
+  #:use-module (gnu services)
+  #:use-module (gnu services configuration)
+  #:use-module (gnu services base)
+  #:use-module (gnu services shepherd)
+  #:use-module (gnu packages admin)
+  #:use-module (guix records)
+  #:use-module (guix gexp)
+  #:use-module (guix packages)
+  #:export (auditd-configuration
+            auditd-service-type))
+
+; /etc/audit/audit.rules
+
+(define-configuration auditd-configuration
+  (audit
+   (package audit)
+   "Audit package."))
+
+(define (auditd-shepherd-service config)
+  (let* ((audit (auditd-configuration-audit config)))
+    (list (shepherd-service
+           (documentation "Auditd allows you to audit file system accesses.")
+           (provision '(auditd))
+           (start #~(make-forkexec-constructor
+                     (list (string-append #$audit "/sbin/auditd"))))
+           (stop #~(make-kill-destructor))))))
+
+(define auditd-service-type
+  (service-type (name 'auditd)
+                (description "Allows auditing file system accesses.")
+                (extensions
+                 (list
+                  (service-extension shepherd-root-service-type
+                                     auditd-shepherd-service)))
+                (default-value (auditd-configuration))))
diff --git a/gnu/services/base.scm b/gnu/services/base.scm
index f709ca5519..3c1827fb70 100644
--- a/gnu/services/base.scm
+++ b/gnu/services/base.scm
@@ -28,6 +28,7 @@
   #:use-module (guix store)
   #:use-module (guix deprecation)
   #:use-module (gnu services)
+  #:use-module (gnu services admin)
   #:use-module (gnu services shepherd)
   #:use-module (gnu system pam)
   #:use-module (gnu system shadow)                ; 'user-account', etc.
@@ -142,7 +143,8 @@
             guix-publish-configuration-guix
             guix-publish-configuration-port
             guix-publish-configuration-host
-            guix-publish-configuration-compression-level
+            guix-publish-configuration-compression
+            guix-publish-configuration-compression-level ;deprecated
             guix-publish-configuration-nar-path
             guix-publish-configuration-cache
             guix-publish-configuration-ttl
@@ -1748,8 +1750,12 @@ archive' public keys, with GUIX."
            (default 80))
   (host    guix-publish-configuration-host        ;string
            (default "localhost"))
-  (compression-level guix-publish-configuration-compression-level ;integer
-                     (default 3))
+  (compression       guix-publish-configuration-compression
+                     (thunked)
+                     (default (default-compression this-record
+                                (current-source-location))))
+  (compression-level %guix-publish-configuration-compression-level ;deprecated
+                     (default #f))
   (nar-path    guix-publish-configuration-nar-path ;string
                (default "nar"))
   (cache       guix-publish-configuration-cache   ;#f | string
@@ -1759,42 +1765,69 @@ archive' public keys, with GUIX."
   (ttl         guix-publish-configuration-ttl     ;#f | integer
                (default #f)))
 
-(define guix-publish-shepherd-service
-  (match-lambda
-    (($ <guix-publish-configuration> guix port host compression
-                                     nar-path cache workers ttl)
-     (list (shepherd-service
-            (provision '(guix-publish))
-            (requirement '(guix-daemon))
-            (start #~(make-forkexec-constructor
-                      (list #$(file-append guix "/bin/guix")
-                            "publish" "-u" "guix-publish"
-                            "-p" #$(number->string port)
-                            "-C" #$(number->string compression)
-                            (string-append "--nar-path=" #$nar-path)
-                            (string-append "--listen=" #$host)
-                            #$@(if workers
-                                   #~((string-append "--workers="
-                                                     #$(number->string
-                                                        workers)))
-                                   #~())
-                            #$@(if ttl
-                                   #~((string-append "--ttl="
-                                                     #$(number->string ttl)
-                                                     "s"))
-                                   #~())
-                            #$@(if cache
-                                   #~((string-append "--cache=" #$cache))
-                                   #~()))
-
-                      ;; Make sure we run in a UTF-8 locale so we can produce
-                      ;; nars for packages that contain UTF-8 file names such
-                      ;; as 'nss-certs'.  See <https://bugs.gnu.org/26948>.
-                      #:environment-variables
-                      (list (string-append "GUIX_LOCPATH="
-                                           #$glibc-utf8-locales "/lib/locale")
-                            "LC_ALL=en_US.utf8")))
-            (stop #~(make-kill-destructor)))))))
+(define-deprecated (guix-publish-configuration-compression-level config)
+  "Return a compression level, the old way."
+  (match (guix-publish-configuration-compression config)
+    (((_ level) _ ...) level)))
+
+(define (default-compression config properties)
+  "Return the default 'guix publish' compression according to CONFIG, and
+raise a deprecation warning if the 'compression-level' field was used."
+  (match (%guix-publish-configuration-compression-level config)
+    (#f
+     '(("gzip" 3)))
+    (level
+     (warn-about-deprecation 'compression-level properties
+                             #:replacement 'compression)
+     `(("gzip" ,level)))))
+
+(define (guix-publish-shepherd-service config)
+  (define (config->compression-options config)
+    (match (guix-publish-configuration-compression config)
+      (()                                   ;empty list means "no compression"
+       '("-C0"))
+      (lst
+       (append-map (match-lambda
+                     ((type level)
+                      `("-C" ,(string-append type ":"
+                                             (number->string level)))))
+                   lst))))
+
+  (match-record config <guix-publish-configuration>
+    (guix port host nar-path cache workers ttl)
+    (list (shepherd-service
+           (provision '(guix-publish))
+           (requirement '(guix-daemon))
+           (start #~(make-forkexec-constructor
+                     (list #$(file-append guix "/bin/guix")
+                           "publish" "-u" "guix-publish"
+                           "-p" #$(number->string port)
+                           #$@(config->compression-options config)
+                           (string-append "--nar-path=" #$nar-path)
+                           (string-append "--listen=" #$host)
+                           #$@(if workers
+                                  #~((string-append "--workers="
+                                                    #$(number->string
+                                                       workers)))
+                                  #~())
+                           #$@(if ttl
+                                  #~((string-append "--ttl="
+                                                    #$(number->string ttl)
+                                                    "s"))
+                                  #~())
+                           #$@(if cache
+                                  #~((string-append "--cache=" #$cache))
+                                  #~()))
+
+                     ;; Make sure we run in a UTF-8 locale so we can produce
+                     ;; nars for packages that contain UTF-8 file names such
+                     ;; as 'nss-certs'.  See <https://bugs.gnu.org/26948>.
+                     #:environment-variables
+                     (list (string-append "GUIX_LOCPATH="
+                                          #$glibc-utf8-locales "/lib/locale")
+                           "LC_ALL=en_US.utf8")
+                     #:log-file "/var/log/guix-publish.log"))
+           (stop #~(make-kill-destructor))))))
 
 (define %guix-publish-accounts
   (list (user-group (name "guix-publish") (system? #t))
@@ -1806,6 +1839,10 @@ archive' public keys, with GUIX."
          (home-directory "/var/empty")
          (shell (file-append shadow "/sbin/nologin")))))
 
+(define %guix-publish-log-rotations
+  (list (log-rotation
+         (files (list "/var/log/guix-publish.log")))))
+
 (define (guix-publish-activation config)
   (let ((cache (guix-publish-configuration-cache config)))
     (if cache
@@ -1827,6 +1864,8 @@ archive' public keys, with GUIX."
                                           guix-publish-shepherd-service)
                        (service-extension account-service-type
                                           (const %guix-publish-accounts))
+                       (service-extension rottlog-service-type
+                                          (const %guix-publish-log-rotations))
                        (service-extension activation-service-type
                                           guix-publish-activation)))
                 (default-value (guix-publish-configuration))
diff --git a/gnu/services/cgit.scm b/gnu/services/cgit.scm
index a84a2dadb2..94ca9e281a 100644
--- a/gnu/services/cgit.scm
+++ b/gnu/services/cgit.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.com>
 ;;; Copyright © 2018 Clément Lassieur <clement@lassieur.org>
 ;;; Copyright © 2018 Christopher Baines <mail@cbaines.net>
+;;; Copyright © 2019 Arun Isaac <arunisaac@systemreboot.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -581,7 +582,7 @@ removed for the URL and name.")
   (root-readme
    (string "")
    "The content of the file specified with this option will be included
-verbatim below thef \"about\" link on the repository index page.")
+verbatim below the \"about\" link on the repository index page.")
   (root-title
    (string "")
    "Text printed as heading on the repository index page.")
diff --git a/gnu/services/cups.scm b/gnu/services/cups.scm
index 9125139ef3..9d21b6e70c 100644
--- a/gnu/services/cups.scm
+++ b/gnu/services/cups.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2016 Andy Wingo <wingo@pobox.com>
 ;;; Copyright © 2017 Clément Lassieur <clement@lassieur.org>
 ;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2019 Alex Griffin <a@ajgrf.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -895,6 +896,7 @@ IPP specifications.")
           (mkdir-p/perms "/var/spool/cups" user #o755)
           (mkdir-p/perms "/var/spool/cups/tmp" user #o755)
           (mkdir-p/perms "/var/log/cups" user #o755)
+          (mkdir-p/perms "/var/cache/cups" user #o770)
           (mkdir-p/perms "/etc/cups" user #o755)
           (mkdir-p/perms "/etc/cups/ssl" user #o700)
           ;; This certificate is used for HTTPS connections to the CUPS web
diff --git a/gnu/services/docker.scm b/gnu/services/docker.scm
index 94a04c8996..04f9127346 100644
--- a/gnu/services/docker.scm
+++ b/gnu/services/docker.scm
@@ -24,12 +24,14 @@
   #:use-module (gnu services shepherd)
   #:use-module (gnu system shadow)
   #:use-module (gnu packages docker)
+  #:use-module (gnu packages linux)               ;singularity
   #:use-module (guix records)
   #:use-module (guix gexp)
   #:use-module (guix packages)
 
   #:export (docker-configuration
-            docker-service-type))
+            docker-service-type
+            singularity-service-type))
 
 ;;; We're not using serialize-configuration, but we must define this because
 ;;; the define-configuration macro validates it exists.
@@ -120,3 +122,60 @@ bundles in Docker containers.")
                   (service-extension account-service-type
                                      (const %docker-accounts))))
                 (default-value (docker-configuration))))
+
+
+;;;
+;;; Singularity.
+;;;
+
+(define %singularity-activation
+  (with-imported-modules '((guix build utils))
+    #~(begin
+        (use-modules (guix build utils))
+
+        (define %mount-directory
+          "/var/singularity/mnt/")
+
+        ;; Create the directories that Singularity 2.6 expects to find.  Make
+        ;; them #o755 like the 'install-data-hook' rule in 'Makefile.am' of
+        ;; Singularity 2.6.1.
+        (for-each (lambda (directory)
+                    (let ((directory (string-append %mount-directory
+                                                    directory)))
+                      (mkdir-p directory)
+                      (chmod directory #o755)))
+                  '("container" "final" "overlay" "session"))
+        (chmod %mount-directory #o755))))
+
+(define (singularity-setuid-programs singularity)
+  "Return the setuid-root programs that SINGULARITY needs."
+  (define helpers
+    ;; The helpers, under a meaningful name.
+    (computed-file "singularity-setuid-helpers"
+                   #~(begin
+                       (mkdir #$output)
+                       (for-each (lambda (program)
+                                   (symlink (string-append #$singularity
+                                                           "/libexec/singularity"
+                                                           "/bin/"
+                                                           program "-suid")
+                                            (string-append #$output
+                                                           "/singularity-"
+                                                           program
+                                                           "-helper")))
+                                 '("action" "mount" "start")))))
+
+  (list (file-append helpers "/singularity-action-helper")
+        (file-append helpers "/singularity-mount-helper")
+        (file-append helpers "/singularity-start-helper")))
+
+(define singularity-service-type
+  (service-type (name 'singularity)
+                (description
+                 "Install the Singularity application bundle tool.")
+                (extensions
+                 (list (service-extension setuid-program-service-type
+                                          singularity-setuid-programs)
+                       (service-extension activation-service-type
+                                          (const %singularity-activation))))
+                (default-value singularity)))
diff --git a/gnu/services/getmail.scm b/gnu/services/getmail.scm
new file mode 100644
index 0000000000..b807bb3a5d
--- /dev/null
+++ b/gnu/services/getmail.scm
@@ -0,0 +1,380 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2019 Christopher Baines <mail@cbaines.net>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu services getmail)
+  #:use-module (gnu services)
+  #:use-module (gnu services base)
+  #:use-module (gnu services configuration)
+  #:use-module (gnu services shepherd)
+  #:use-module (gnu system pam)
+  #:use-module (gnu system shadow)
+  #:use-module (gnu packages mail)
+  #:use-module (gnu packages admin)
+  #:use-module (gnu packages tls)
+  #:use-module (guix records)
+  #:use-module (guix store)
+  #:use-module (guix packages)
+  #:use-module (guix gexp)
+  #:use-module (ice-9 match)
+  #:use-module (ice-9 format)
+  #:use-module (srfi srfi-1)
+  #:export (getmail-retriever-configuration
+            getmail-retriever-configuration-extra-parameters
+            getmail-destination-configuration
+            getmail-options-configuration
+            getmail-configuration-file
+            getmail-configuration
+            getmail-service-type))
+
+;;; Commentary:
+;;;
+;;; Service for the getmail mail retriever.
+;;;
+;;; Code:
+
+(define (uglify-field-name field-name)
+  (let ((str (symbol->string field-name)))
+    (string-join (string-split (if (string-suffix? "?" str)
+                                   (substring str 0 (1- (string-length str)))
+                                   str)
+                               #\-)
+                 "_")))
+
+(define (serialize-field field-name val)
+  #~(let ((val '#$val))
+      (format #f "~a = ~a\n"
+              #$(uglify-field-name field-name)
+              (cond
+               ((list? val)
+                (string-append
+                 "("
+                 (string-concatenate
+                  (map (lambda (list-val)
+                         (format #f "\"~a\", " list-val))
+                       val))
+                 ")"))
+               (else
+                val)))))
+
+(define (serialize-string field-name val)
+  (if (string=? val "")
+      ""
+      (serialize-field field-name val)))
+
+(define (string-or-filelike? val)
+  (or (string? val)
+      (file-like? val)))
+(define (serialize-string-or-filelike field-name val)
+  (if (equal? val "")
+      ""
+      (serialize-field field-name val)))
+
+(define (serialize-boolean field-name val)
+  (serialize-field field-name (if val "true" "false")))
+
+(define (non-negative-integer? val)
+  (and (exact-integer? val) (not (negative? val))))
+(define (serialize-non-negative-integer field-name val)
+  (serialize-field field-name val))
+
+(define serialize-list serialize-field)
+
+(define parameter-alist? list?)
+(define (serialize-parameter-alist field-name val)
+  #~(string-append
+     #$@(map (match-lambda
+               ((key . value)
+                (serialize-field key value)))
+             val)))
+
+(define (serialize-getmail-retriever-configuration field-name val)
+  (serialize-configuration val getmail-retriever-configuration-fields))
+
+(define-configuration getmail-retriever-configuration
+  (type
+   (string "SimpleIMAPSSLRetriever")
+   "The type of mail retriever to use.  Valid values include
+@samp{passwd} and @samp{static}.")
+  (server
+   (string 'unset)
+   "Space separated list of arguments to the userdb driver.")
+  (username
+   (string 'unset)
+   "Space separated list of arguments to the userdb driver.")
+  (port
+   (non-negative-integer #f)
+   "Space separated list of arguments to the userdb driver.")
+  (password
+   (string "")
+   "Override fields from passwd.")
+  (password-command
+   (list '())
+   "Override fields from passwd.")
+  (keyfile
+   (string "")
+   "PEM-formatted key file to use for the TLS negotiation")
+  (certfile
+   (string "")
+   "PEM-formatted certificate file to use for the TLS negotiation")
+  (ca-certs
+   (string "")
+   "CA certificates to use")
+  (extra-parameters
+   (parameter-alist '())
+   "Extra retriever parameters"))
+
+(define (serialize-getmail-destination-configuration field-name val)
+  (serialize-configuration val getmail-destination-configuration-fields))
+
+(define-configuration getmail-destination-configuration
+  (type
+   (string 'unset)
+   "The type of mail destination.  Valid values include @samp{Maildir},
+@samp{Mboxrd} and @samp{MDA_external}.")
+  (path
+   (string-or-filelike "")
+   "The path option for the mail destination.  The behaviour depends on the
+chosen type.")
+  (extra-parameters
+   (parameter-alist '())
+   "Extra destination parameters"))
+
+(define (serialize-getmail-options-configuration field-name val)
+  (serialize-configuration val getmail-options-configuration-fields))
+
+(define-configuration getmail-options-configuration
+  (verbose
+   (non-negative-integer 1)
+   "If set to @samp{0}, getmail will only print warnings and errors.  A value
+of @samp{1} means that messages will be printed about retrieving and deleting
+messages. If set to @samp{2}, getmail will print messages about each of it's
+actions.")
+  (read-all
+   (boolean #t)
+   "If true, getmail will retrieve all available messages.  Otherwise it will
+only retrieve messages it hasn't seen previously.")
+  (delete
+   (boolean #f)
+   "If set to true, messages will be deleted from the server after retrieving
+and successfully delivering them.  Otherwise, messages will be left on the
+server.")
+  (delete-after
+   (non-negative-integer 0)
+   "Getmail will delete messages this number of days after seeing them, if
+they have not been delivered.  This means messages will be left on the server
+this number of days after delivering them.  A value of @samp{0} disabled this
+feature.")
+  (delete-bigger-than
+   (non-negative-integer 0)
+   "Delete messages larger than this of bytes after retrieving them, even if
+the delete and delete-after options are disabled.  A value of @samp{0}
+disables this feature.")
+  (max-bytes-per-session
+   (non-negative-integer 0)
+   "Retrieve messages totalling up to this number of bytes before closing the
+session with the server.  A value of @samp{0} disables this feature.")
+  (max-message-size
+   (non-negative-integer 0)
+   "Don't retrieve messages larger than this number of bytes.  A value of
+@samp{0} disables this feature.")
+  (delivered-to
+   (boolean #t)
+   "If true, getmail will add a Delivered-To header to messages.")
+  (received
+   (boolean #t)
+   "If set, getmail adds a Received header to the messages.")
+  (message-log
+   (string "")
+   "Getmail will record a log of its actions to the named file.  A value of
+@samp{\"\"} disables this feature.")
+  (message-log-syslog
+   (boolean #t)
+   "If true, getmail will record a log of its actions using the system
+logger.")
+  (message-log-verbose
+   (boolean #t)
+   "If true, getmail will log information about messages not retrieved and the
+reason for not retrieving them, as well as starting and ending information
+lines.")
+  (extra-parameters
+   (parameter-alist '())
+   "Extra options to include."))
+
+(define (serialize-getmail-configuration-file field-name val)
+  (match val
+    (($ <getmail-configuration-file> location
+                                     retriever destination options)
+     #~(string-append
+        "[retriever]\n"
+        #$(serialize-getmail-retriever-configuration #f retriever)
+        "\n[destination]\n"
+        #$(serialize-getmail-destination-configuration #f destination)
+        "\n[options]\n"
+        #$(serialize-getmail-options-configuration #f options)))))
+
+(define-configuration getmail-configuration-file
+  (retriever
+   (getmail-retriever-configuration (getmail-retriever-configuration))
+   "What mail account to retrieve mail from, and how to access that account.")
+  (destination
+   (getmail-destination-configuration (getmail-destination-configuration))
+   "What to do with retrieved messages.")
+  (options
+   (getmail-options-configuration (getmail-options-configuration))
+   "Configure getmail."))
+
+(define (serialize-symbol field-name val) "")
+(define (serialize-getmail-configuration field-name val) "")
+
+(define-configuration getmail-configuration
+  (name
+   (symbol "unset")
+   "A symbol to identify the getmail service.")
+  (package
+   (package getmail)
+   "The getmail package to use.")
+  (user
+   (string "getmail")
+   "The user to run getmail as.")
+  (group
+   (string "getmail")
+   "The group to run getmail as.")
+  (directory
+   (string "/var/lib/getmail/default")
+   "The getmail directory to use.")
+  (rcfile
+   (getmail-configuration-file (getmail-configuration-file))
+   "The getmail configuration file to use.")
+  (idle
+   (list '())
+   "A list of mailboxes that getmail should wait on the server for new mail
+notifications.  This depends on the server supporting the IDLE extension.")
+  (environment-variables
+   (list '())
+   "Environment variables to set for getmail."))
+
+(define (generate-getmail-documentation)
+  (generate-documentation
+   `((getmail-configuration
+      ,getmail-configuration-fields
+      (rcfile getmail-configuration-file))
+     (getmail-configuration-file
+      ,getmail-configuration-file-fields
+      (retriever getmail-retriever-configuration)
+      (destination getmail-destination-configuration)
+      (options getmail-options-configuration))
+     (getmail-retriever-configuration ,getmail-retriever-configuration-fields)
+     (getmail-destination-configuration ,getmail-destination-configuration-fields)
+     (getmail-options-configuration ,getmail-options-configuration-fields))
+   'getmail-configuration))
+
+(define-gexp-compiler (getmail-configuration-file-compiler
+                       (rcfile <getmail-configuration-file>) system target)
+  (gexp->derivation
+   "getmailrc"
+   #~(call-with-output-file #$output
+       (lambda (port)
+         (display #$(serialize-getmail-configuration-file #f rcfile)
+                  port)))
+   #:system system
+   #:target target))
+
+(define (getmail-accounts configs)
+  (let ((users (delete-duplicates
+                (map getmail-configuration-user
+                     configs)))
+        (groups (delete-duplicates
+                 (map getmail-configuration-group
+                      configs))))
+    (append
+     (map (lambda (group)
+            (user-group
+             (name group)
+             (system? #t)))
+          groups)
+     (map (lambda (user)
+            (user-account
+             (name user)
+             (group (getmail-configuration-group
+                     (find (lambda (config)
+                             (and
+                              (string=? user (getmail-configuration-user config))
+                              (getmail-configuration-group config)))
+                           configs)))
+             (system? #t)
+             (comment "Getmail user")
+             (home-directory "/var/empty")
+             (shell (file-append shadow "/sbin/nologin"))))
+          users))))
+
+(define (getmail-activation configs)
+  "Return the activation GEXP for CONFIGS."
+  (with-imported-modules '((guix build utils))
+    #~(begin
+        (use-modules (guix build utils))
+        #$@(map
+            (lambda (config)
+              #~(let* ((pw (getpw #$(getmail-configuration-user config)))
+                       (uid (passwd:uid pw))
+                       (gid (passwd:gid pw))
+                       (getmaildir #$(getmail-configuration-directory config)))
+                  (mkdir-p getmaildir)
+                  (chown getmaildir uid gid)))
+            configs))))
+
+(define (getmail-shepherd-services configs)
+  "Return a list of <shepherd-service> for CONFIGS."
+  (map (match-lambda
+         (($ <getmail-configuration> location name package
+                                     user group directory rcfile idle
+                                     environment-variables)
+          (shepherd-service
+           (documentation "Run getmail.")
+           (provision (list (symbol-append 'getmail- name)))
+           (requirement '(networking))
+           (start #~(make-forkexec-constructor
+                     `(#$(file-append package "/bin/getmail")
+                       ,(string-append "--getmaildir=" #$directory)
+                       #$@(map (lambda (idle)
+                                 (string-append "--idle=" idle))
+                               idle)
+                       ,(string-append "--rcfile=" #$rcfile))
+                     #:user #$user
+                     #:group #$group
+                     #:environment-variables
+                     (list #$@environment-variables)
+                     #:log-file
+                     #$(string-append "/var/log/getmail-"
+                                      (symbol->string name)))))))
+       configs))
+
+(define getmail-service-type
+  (service-type
+   (name 'getmail)
+   (extensions
+    (list (service-extension shepherd-root-service-type
+                             getmail-shepherd-services)
+          (service-extension activation-service-type
+                             getmail-activation)
+          (service-extension account-service-type
+                             getmail-accounts)))
+   (description
+    "Run @command{getmail}, a mail retriever program.")
+   (default-value '())
+   (compose concatenate)
+   (extend append)))
diff --git a/gnu/services/herd.scm b/gnu/services/herd.scm
index 9fe757fb73..0008746fe9 100644
--- a/gnu/services/herd.scm
+++ b/gnu/services/herd.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -76,7 +76,7 @@ return the socket."
       (catch 'system-error
         (lambda ()
           (connect sock address)
-          (setvbuf sock _IOFBF 1024)
+          (setvbuf sock 'block 1024)
           sock)
         (lambda args
           (close-port sock)
diff --git a/gnu/services/nix.scm b/gnu/services/nix.scm
new file mode 100644
index 0000000000..dfe33991d0
--- /dev/null
+++ b/gnu/services/nix.scm
@@ -0,0 +1,113 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2019 Oleg Pykhalov <go.wigust@gmail.com>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu services nix)
+  #:use-module (gnu packages admin)
+  #:use-module (gnu packages package-management)
+  #:use-module (gnu services base)
+  #:use-module (gnu services configuration)
+  #:use-module (gnu services shepherd)
+  #:use-module (gnu services web)
+  #:use-module (gnu services)
+  #:use-module (gnu system shadow)
+  #:use-module (guix gexp)
+  #:use-module (guix packages)
+  #:use-module (guix records)
+  #:use-module (guix store)
+  #:use-module (srfi srfi-1)
+  #:use-module (srfi srfi-26)
+  #:export (nix-service-type))
+
+;;; Commentary:
+;;;
+;;; This module provides a service definition for the Nix daemon.
+;;;
+;;; Code:
+
+
+;;;
+;;; Accounts
+;;;
+
+;; Copied from gnu/services/base.scm
+(define* (nix-build-accounts count #:key
+                             (group "nixbld")
+                             (shadow shadow))
+  "Return a list of COUNT user accounts for Nix build users with the given
+GID."
+  (unfold (cut > <> count)
+          (lambda (n)
+            (user-account
+             (name (format #f "nixbld~2,'0d" n))
+             (system? #t)
+             (group group)
+             (supplementary-groups (list group "kvm"))
+             (comment (format #f "Nix Build User ~2d" n))
+             (home-directory "/var/empty")
+             (shell (file-append shadow "/sbin/nologin"))))
+          1+
+          1))
+(define (nix-accounts _)
+  "Return the user accounts and user groups."
+  (cons (user-group
+         (name "nixbld")
+         (system? #t)
+
+         ;; Use a fixed GID so that we can create the store with the right
+         ;; owner.
+         (id 40000))
+        (nix-build-accounts 10 #:group "nixbld")))
+
+(define (nix-activation _)
+  "Return the activation gexp."
+  (with-imported-modules '((guix build utils))
+    #~(begin
+        (use-modules (guix build utils)
+                     (srfi srfi-26))
+        (for-each (cut mkdir-p <>) '("/nix/store" "/nix/var/log"
+                                     "/nix/var/nix/gcroots/per-user"
+                                     "/nix/var/nix/profiles/per-user"))
+        (chown "/nix/store"
+               (passwd:uid (getpw "root")) (group:gid (getpw "nixbld01")))
+        (chmod "/nix/store" #o775)
+        (for-each (cut chmod <> #o777) '("/nix/var/nix/profiles"
+                                         "/nix/var/nix/profiles/per-user")))))
+
+(define (nix-shepherd-service _)
+  "Return a <shepherd-service> for Nix."
+  (list
+   (shepherd-service
+    (provision '(nix-daemon))
+    (documentation "Run nix-daemon.")
+    (requirement '())
+    (start #~(make-forkexec-constructor
+              (list (string-append #$nix "/bin/nix-daemon"))))
+    (respawn? #f)
+    (stop #~(make-kill-destructor)))))
+
+(define nix-service-type
+  (service-type
+   (name 'nix)
+   (extensions
+    (list (service-extension shepherd-root-service-type nix-shepherd-service)
+          (service-extension account-service-type nix-accounts)
+          (service-extension activation-service-type nix-activation)))
+   (default-value '())
+   (description "Run the Nix daemon.")))
+
+;;; nix.scm ends here
diff --git a/gnu/services/sddm.scm b/gnu/services/sddm.scm
index b433c59e12..b0e6d40260 100644
--- a/gnu/services/sddm.scm
+++ b/gnu/services/sddm.scm
@@ -175,7 +175,7 @@ Relogin="              (if (sddm-configuration-relogin? config)
 (define (sddm-etc-service config)
   (list `("sddm.conf" ,(sddm-configuration-file config))))
 
-(define (sddm-pam-service)
+(define (sddm-pam-service config)
   "Return a PAM service for @command{sddm}."
   (pam-service
    (name "sddm")
@@ -190,7 +190,9 @@ Relogin="              (if (sddm-configuration-relogin? config)
      (pam-entry
       (control "required")
       (module "pam_succeed_if.so")
-      (arguments (list "uid >= 1000" "quiet")))
+      (arguments (list (string-append "uid >= "
+                                      (number->string (sddm-configuration-minimum-uid config)))
+                       "quiet")))
      ;; should be factored out into system-auth
      (pam-entry
       (control "required")
@@ -249,7 +251,7 @@ Relogin="              (if (sddm-configuration-relogin? config)
       (control "required")
       (module "pam_unix.so"))))))
 
-(define (sddm-autologin-pam-service)
+(define (sddm-autologin-pam-service config)
   "Return a PAM service for @command{sddm-autologin}"
   (pam-service
    (name "sddm-autologin")
@@ -261,7 +263,9 @@ Relogin="              (if (sddm-configuration-relogin? config)
      (pam-entry
       (control "required")
       (module "pam_succeed_if.so")
-      (arguments (list "uid >= 1000" "quiet")))
+      (arguments (list (string-append "uid >= "
+                                      (number->string (sddm-configuration-minimum-uid config)))
+                       "quiet")))
      (pam-entry
       (control "required")
       (module "pam_permit.so"))))
@@ -282,9 +286,9 @@ Relogin="              (if (sddm-configuration-relogin? config)
       (module "sddm"))))))
 
 (define (sddm-pam-services config)
-  (list (sddm-pam-service)
+  (list (sddm-pam-service config)
         (sddm-greeter-pam-service)
-        (sddm-autologin-pam-service)))
+        (sddm-autologin-pam-service config)))
 
 (define %sddm-accounts
   (list (user-group (name "sddm") (system? #t))
diff --git a/gnu/services/web.scm b/gnu/services/web.scm
index 84294db53b..35efddb0ae 100644
--- a/gnu/services/web.scm
+++ b/gnu/services/web.scm
@@ -7,7 +7,7 @@
 ;;; Copyright © 2017 nee <nee-git@hidamari.blue>
 ;;; Copyright © 2017, 2018 Clément Lassieur <clement@lassieur.org>
 ;;; Copyright © 2018 Pierre-Antoine Rouby <pierre-antoine.rouby@inria.fr>
-;;; Copyright © 2017 Christopher Baines <mail@cbaines.net>
+;;; Copyright © 2017, 2018, 2019 Christopher Baines <mail@cbaines.net>
 ;;; Copyright © 2018 Marius Bakke <mbakke@fastmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -29,14 +29,23 @@
   #:use-module (gnu services)
   #:use-module (gnu services shepherd)
   #:use-module (gnu services admin)
+  #:use-module (gnu services getmail)
+  #:use-module (gnu services mail)
   #:use-module (gnu system pam)
   #:use-module (gnu system shadow)
   #:use-module (gnu packages admin)
+  #:use-module (gnu packages databases)
   #:use-module (gnu packages web)
+  #:use-module (gnu packages patchutils)
   #:use-module (gnu packages php)
+  #:use-module (gnu packages python)
+  #:use-module (gnu packages gnupg)
+  #:use-module (gnu packages guile)
   #:use-module (gnu packages logging)
+  #:use-module (guix packages)
   #:use-module (guix records)
   #:use-module (guix modules)
+  #:use-module (guix utils)
   #:use-module (guix gexp)
   #:use-module ((guix store) #:select (text-file))
   #:use-module ((guix utils) #:select (version-major))
@@ -210,7 +219,42 @@
             varnish-configuration-parameters
             varnish-configuration-extra-options
 
-            varnish-service-type))
+            varnish-service-type
+
+            <patchwork-database-configuration>
+            patchwork-database-configuration
+            patchwork-database-configuration?
+            patchwork-database-configuration-engine
+            patchwork-database-configuration-name
+            patchwork-database-configuration-user
+            patchwork-database-configuration-password
+            patchwork-database-configuration-host
+            patchwork-database-configuration-port
+
+            <patchwork-settings-module>
+            patchwork-settings-module
+            patchwork-settings-module?
+            patchwork-settings-module-database-configuration
+            patchwork-settings-module-secret-key
+            patchwork-settings-module-allowed-hosts
+            patchwork-settings-module-default-from-email
+            patchwork-settings-module-static-url
+            patchwork-settings-module-admins
+            patchwork-settings-module-debug?
+            patchwork-settings-module-enable-rest-api?
+            patchwork-settings-module-enable-xmlrpc?
+            patchwork-settings-module-force-https-links?
+            patchwork-settings-module-extra-settings
+
+            <patchwork-configuration>
+            patchwork-configuration
+            patchwork-configuration?
+            patchwork-configuration-patchwork
+            patchwork-configuration-settings-module
+            patchwork-configuration-domain
+
+            patchwork-virtualhost
+            patchwork-service-type))
 
 ;;; Commentary:
 ;;;
@@ -1268,3 +1312,323 @@ files.")
                              varnish-shepherd-service)))
    (default-value
      (varnish-configuration))))
+
+
+;;;
+;;; Patchwork
+;;;
+
+(define-record-type* <patchwork-database-configuration>
+  patchwork-database-configuration make-patchwork-database-configuration
+  patchwork-database-configuration?
+  (engine          patchwork-database-configuration-engine
+                   (default "django.db.backends.postgresql_psycopg2"))
+  (name            patchwork-database-configuration-name
+                   (default "patchwork"))
+  (user            patchwork-database-configuration-user
+                   (default "httpd"))
+  (password        patchwork-database-configuration-password
+                   (default ""))
+  (host            patchwork-database-configuration-host
+                   (default ""))
+  (port            patchwork-database-configuration-port
+                   (default "")))
+
+(define-record-type* <patchwork-settings-module>
+  patchwork-settings-module make-patchwork-settings-module
+  patchwork-settings-module?
+  (database-configuration    patchwork-settings-module-database-configuration
+                             (default (patchwork-database-configuration)))
+  (secret-key-file           patchwork-settings-module-secret-key-file
+                             (default "/etc/patchwork/django-secret-key"))
+  (allowed-hosts             patchwork-settings-module-allowed-hosts)
+  (default-from-email        patchwork-settings-module-default-from-email)
+  (static-url                patchwork-settings-module-static-url
+                             (default "/static/"))
+  (admins                    patchwork-settings-module-admins
+                             (default '()))
+  (debug?                    patchwork-settings-module-debug?
+                             (default #f))
+  (enable-rest-api?          patchwork-settings-module-enable-rest-api?
+                             (default #t))
+  (enable-xmlrpc?            patchwork-settings-module-enable-xmlrpc?
+                             (default #t))
+  (force-https-links?        patchwork-settings-module-force-https-links?
+                             (default #t))
+  (extra-settings            patchwork-settings-module-extra-settings
+                             (default "")))
+
+(define-record-type* <patchwork-configuration>
+  patchwork-configuration make-patchwork-configuration
+  patchwork-configuration?
+  (patchwork                patchwork-configuration-patchwork
+                            (default patchwork))
+  (domain                   patchwork-configuration-domain)
+  (settings-module          patchwork-configuration-settings-module)
+  (static-path              patchwork-configuration-static-url
+                            (default "/static/"))
+  (getmail-retriever-config getmail-retriever-config))
+
+;; Django uses a Python module for configuration, so this compiler generates a
+;; Python module from the configuration record.
+(define-gexp-compiler (patchwork-settings-module-compiler
+                       (file <patchwork-settings-module>) system target)
+  (match file
+    (($ <patchwork-settings-module> database-configuration secret-key-file
+                                    allowed-hosts default-from-email
+                                    static-url admins debug? enable-rest-api?
+                                    enable-xmlrpc? force-https-links?
+                                    extra-configuration)
+     (gexp->derivation
+      "patchwork-settings"
+      (with-imported-modules '((guix build utils))
+        #~(let ((output #$output))
+            (define (create-__init__.py filename)
+              (call-with-output-file filename
+                (lambda (port) (display "" port))))
+
+            (use-modules (guix build utils)
+                         (srfi srfi-1))
+
+            (mkdir-p (string-append output "/guix/patchwork"))
+            (create-__init__.py
+             (string-append output "/guix/__init__.py"))
+            (create-__init__.py
+             (string-append output "/guix/patchwork/__init__.py"))
+
+            (call-with-output-file
+                (string-append output "/guix/patchwork/settings.py")
+              (lambda (port)
+                (display
+                 (string-append "from patchwork.settings.base import *
+
+# Configuration from Guix
+with open('" #$secret-key-file "') as f:
+    SECRET_KEY = f.read().strip()
+
+ALLOWED_HOSTS = [
+" #$(string-concatenate
+     (map (lambda (allowed-host)
+            (string-append "  '" allowed-host "'\n"))
+          allowed-hosts))
+"]
+
+ADMINS = [
+" #$(string-concatenate
+     (map (match-lambda
+            ((name email-address)
+             (string-append
+              "('" name "','" email-address "'),")))
+          admins))
+"]
+
+DEBUG = " #$(if debug? "True" "False") "
+
+ENABLE_REST_API = " #$(if enable-xmlrpc? "True" "False") "
+ENABLE_XMLRPC = " #$(if enable-xmlrpc? "True" "False") "
+
+FORCE_HTTPS_LINKS = " #$(if force-https-links? "True" "False") "
+
+DATABASES = {
+    'default': {
+" #$(match database-configuration
+      (($ <patchwork-database-configuration>
+          engine name user password host port)
+       (string-append
+        "        'ENGINE': '" engine "',\n"
+        "        'NAME': '" name "',\n"
+        "        'USER': '" user "',\n"
+        "        'PASSWORD': '" password "',\n"
+        "        'HOST': '" host "',\n"
+        "        'PORT': '" port "',\n"))) "
+    },
+}
+
+" #$(if debug?
+        #~(string-append "STATIC_ROOT = '"
+                         #$(file-append patchwork "/share/patchwork/htdocs")
+                         "'")
+        #~(string-append "STATIC_URL = '" #$static-url "'")) "
+
+STATICFILES_STORAGE = (
+  'django.contrib.staticfiles.storage.StaticFilesStorage'
+)
+
+# Guix Extra Configuration
+" #$extra-configuration "
+") port)))
+            #t))
+      #:local-build? #t))))
+
+(define patchwork-virtualhost
+  (match-lambda
+    (($ <patchwork-configuration> patchwork domain
+                                  settings-module static-path
+                                  getmail-retriever-config)
+     (define wsgi.py
+       (file-append patchwork
+                    (string-append
+                     "/lib/python"
+                     (version-major+minor
+                      (package-version python))
+                     "/site-packages/patchwork/wsgi.py")))
+
+     (httpd-virtualhost
+      "*:8080"
+      `("ServerAdmin admin@example.com`
+ServerName " ,domain "
+
+LogFormat \"%v %h %l %u %t \\\"%r\\\" %>s %b \\\"%{Referer}i\\\" \\\"%{User-Agent}i\\\"\" customformat
+LogLevel info
+CustomLog \"/var/log/httpd/" ,domain "-access_log\" customformat
+
+ErrorLog /var/log/httpd/error.log
+
+WSGIScriptAlias / " ,wsgi.py "
+WSGIDaemonProcess " ,(package-name patchwork) " user=httpd group=httpd processes=1 threads=2 display-name=%{GROUP} lang='en_US.UTF-8' locale='en_US.UTF-8' python-path=" ,settings-module "
+WSGIProcessGroup " ,(package-name patchwork) "
+WSGIPassAuthorization On
+
+<Files " ,wsgi.py ">
+  Require all granted
+</Files>
+
+" ,@(if static-path
+        `("Alias " ,static-path " " ,patchwork "/share/patchwork/htdocs/")
+        '())
+"
+<Directory \"/srv/http/" ,domain "/\">
+    AllowOverride None
+    Options MultiViews Indexes SymlinksIfOwnerMatch IncludesNoExec
+    Require method GET POST OPTIONS
+</Directory>")))))
+
+(define (patchwork-httpd-configuration patchwork-configuration)
+  (list "WSGISocketPrefix /var/run/mod_wsgi"
+        (list "LoadModule wsgi_module "
+              (file-append mod-wsgi "/modules/mod_wsgi.so"))
+        (patchwork-virtualhost patchwork-configuration)))
+
+(define (patchwork-django-admin-gexp patchwork settings-module)
+  #~(lambda command
+      (let ((pid (primitive-fork))
+            (user (getpwnam "httpd")))
+        (if (eq? pid 0)
+            (dynamic-wind
+              (const #t)
+              (lambda ()
+                (setgid (passwd:gid user))
+                (setuid (passwd:uid user))
+
+                (setenv "DJANGO_SETTINGS_MODULE" "guix.patchwork.settings")
+                (setenv "PYTHONPATH" #$settings-module)
+                (primitive-exit
+                 (if (zero?
+                      (apply system*
+                             #$(file-append patchwork "/bin/patchwork-admin")
+                             command))
+                     0
+                     1)))
+              (lambda ()
+                (primitive-exit 1)))
+            (zero? (cdr (waitpid pid)))))))
+
+(define (patchwork-django-admin-action patchwork settings-module)
+  (shepherd-action
+   (name 'django-admin)
+   (documentation
+    "Run a django admin command for patchwork")
+   (procedure (patchwork-django-admin-gexp patchwork settings-module))))
+
+(define patchwork-shepherd-services
+  (match-lambda
+    (($ <patchwork-configuration> patchwork domain
+                                  settings-module static-path
+                                  getmail-retriever-config)
+     (define secret-key-file-creation-gexp
+       (if (patchwork-settings-module? settings-module)
+           (with-extensions (list guile-gcrypt)
+             #~(let ((secret-key-file
+                      #$(patchwork-settings-module-secret-key-file
+                         settings-module)))
+                 (use-modules (guix build utils)
+                              (gcrypt random))
+
+                 (unless (file-exists? secret-key-file)
+                   (mkdir-p (dirname secret-key-file))
+                   (call-with-output-file secret-key-file
+                     (lambda (port)
+                       (display (random-token 30 'very-strong) port)))
+                   (let* ((pw  (getpwnam "httpd"))
+                          (uid (passwd:uid pw))
+                          (gid (passwd:gid pw)))
+                     (chown secret-key-file uid gid)
+                     (chmod secret-key-file #o400)))))
+           #~()))
+
+     (list (shepherd-service
+            (requirement '(postgres))
+            (provision (list (string->symbol
+                              (string-append (package-name patchwork)
+                                             "-setup"))))
+            (start
+               #~(lambda ()
+                   (define run-django-admin-command
+                     #$(patchwork-django-admin-gexp patchwork
+                                                    settings-module))
+
+                   #$secret-key-file-creation-gexp
+
+                   (run-django-admin-command "migrate")))
+            (stop #~(const #f))
+            (actions
+             (list (patchwork-django-admin-action patchwork
+                                                  settings-module)))
+            (respawn? #f)
+            (documentation "Setup Patchwork."))))))
+
+(define patchwork-getmail-configs
+  (match-lambda
+    (($ <patchwork-configuration> patchwork domain
+                                  settings-module static-path
+                                  getmail-retriever-config)
+     (list
+      (getmail-configuration
+       (name (string->symbol (package-name patchwork)))
+       (user "httpd")
+       (directory (string-append
+                   "/var/lib/getmail/" (package-name patchwork)))
+       (rcfile
+        (getmail-configuration-file
+         (retriever getmail-retriever-config)
+         (destination
+          (getmail-destination-configuration
+           (type "MDA_external")
+           (path (file-append patchwork "/bin/patchwork-admin"))
+           (extra-parameters
+            '((arguments . ("parsemail"))))))
+         (options
+          (getmail-options-configuration
+           (read-all #f)
+           (delivered-to #f)
+           (received #f)))))
+       (idle (assq-ref
+              (getmail-retriever-configuration-extra-parameters
+               getmail-retriever-config)
+              'mailboxes))
+       (environment-variables
+        (list "DJANGO_SETTINGS_MODULE=guix.patchwork.settings"
+              #~(string-append "PYTHONPATH=" #$settings-module))))))))
+
+(define patchwork-service-type
+  (service-type
+   (name 'patchwork-setup)
+   (extensions
+    (list (service-extension httpd-service-type
+                             patchwork-httpd-configuration)
+          (service-extension shepherd-root-service-type
+                             patchwork-shepherd-services)
+          (service-extension getmail-service-type
+                             patchwork-getmail-configs)))
+   (description
+    "Patchwork patch tracking system.")))
diff --git a/gnu/services/xorg.scm b/gnu/services/xorg.scm
index 0a38b4013c..06d72b5f60 100644
--- a/gnu/services/xorg.scm
+++ b/gnu/services/xorg.scm
@@ -465,7 +465,7 @@ desktop session from the system or user profile will be used."
 (define %default-slim-theme-name
   ;; This must be the name of the sub-directory in %DEFAULT-SLIM-THEME that
   ;; contains the actual theme files.
-  "0.x")
+  "1.x")
 
 (define-record-type* <slim-configuration>
   slim-configuration make-slim-configuration
diff --git a/gnu/system/linux-container.scm b/gnu/system/linux-container.scm
index 16eee7a3cd..c1e963d047 100644
--- a/gnu/system/linux-container.scm
+++ b/gnu/system/linux-container.scm
@@ -109,7 +109,10 @@ containerized OS.  EXTRA-FILE-SYSTEMS is a list of file systems to add to OS."
                         (memq (service-kind service)
                               useless-services))
                       (operating-system-user-services os)))
-    (file-systems (append (map mapping->fs mappings)
+    (file-systems (append (map mapping->fs
+                               (if shared-network?
+                                   (append %network-file-mappings mappings)
+                                   mappings))
                           extra-file-systems
                           user-file-systems
 
@@ -124,32 +127,33 @@ containerized OS.  EXTRA-FILE-SYSTEMS is a list of file systems to add to OS."
   "Return a derivation of a script that runs OS as a Linux container.
 MAPPINGS is a list of <file-system> objects that specify the files/directories
 that will be shared with the host system."
-  (define network-mappings
-    ;; Files to map if network is to be shared with the host
-    (append %network-file-mappings
-            (let ((nscd-run-directory "/var/run/nscd"))
-              (if (file-exists? nscd-run-directory)
-                  (list (file-system-mapping
-                         (source nscd-run-directory)
-                         (target nscd-run-directory)))
-                  '()))))
+  (define nscd-run-directory "/var/run/nscd")
+
+  (define nscd-mapping
+    (file-system-mapping
+     (source nscd-run-directory)
+     (target nscd-run-directory)))
 
   (define (mountable-file-system? file-system)
     ;; Return #t if FILE-SYSTEM should be mounted in the container.
     (and (not (string=? "/" (file-system-mount-point file-system)))
          (file-system-needed-for-boot? file-system)))
 
-  (let* ((os           (containerized-operating-system
-                        os
-                        (cons %store-mapping
-                              (if shared-network?
-                                  (append network-mappings mappings)
-                                  mappings))
-                        #:shared-network? shared-network?
-                        #:extra-file-systems %container-file-systems))
-         (file-systems (filter mountable-file-system?
-                               (operating-system-file-systems os)))
-         (specs        (map file-system->spec file-systems)))
+  (define (os-file-system-specs os)
+    (map file-system->spec
+         (filter mountable-file-system?
+                 (operating-system-file-systems os))))
+
+  (let* ((os (containerized-operating-system
+              os (cons %store-mapping mappings)
+              #:shared-network? shared-network?
+              #:extra-file-systems %container-file-systems))
+         (nscd-os (containerized-operating-system
+                   os (cons* nscd-mapping %store-mapping mappings)
+                   #:shared-network? shared-network?
+                   #:extra-file-systems %container-file-systems))
+         (specs (os-file-system-specs os))
+         (nscd-specs (os-file-system-specs nscd-os)))
 
     (define script
       (with-imported-modules (source-module-closure
@@ -160,7 +164,12 @@ that will be shared with the host system."
                          (gnu system file-systems) ;spec->file-system
                          (guix build utils))
 
-            (call-with-container (map spec->file-system '#$specs)
+            (call-with-container
+                (map spec->file-system
+                     (if (and #$shared-network?
+                              (file-exists? #$nscd-run-directory))
+                         '#$nscd-specs
+                         '#$specs))
               (lambda ()
                 (setenv "HOME" "/root")
                 (setenv "TMPDIR" "/tmp")
diff --git a/gnu/system/locale.scm b/gnu/system/locale.scm
index 533a45e149..8466d5b07d 100644
--- a/gnu/system/locale.scm
+++ b/gnu/system/locale.scm
@@ -85,20 +85,6 @@ or #f on failure."
     (_
      #f)))
 
-(define* (localedef-command locale
-                            #:key (libc (canonical-package glibc)))
-  "Return a gexp that runs 'localedef' from LIBC to build LOCALE."
-  #~(begin
-      (format #t "building locale '~a'...~%"
-              #$(locale-definition-name locale))
-      (zero? (system* (string-append #+libc "/bin/localedef")
-                      "--no-archive" "--prefix" #$output
-                      "-i" #$(locale-definition-source locale)
-                      "-f" #$(locale-definition-charset locale)
-                      (string-append #$output "/" #$(version-major+minor
-                                                     (package-version libc))
-                                     "/" #$(locale-definition-name locale))))))
-
 (define* (single-locale-directory locales
                                   #:key (libc (canonical-package glibc)))
   "Return a directory containing all of LOCALES for LIBC compiled.
@@ -110,17 +96,29 @@ of LIBC."
     (version-major+minor (package-version libc)))
 
   (define build
-    #~(begin
-        (mkdir #$output)
-
-        (mkdir (string-append #$output "/" #$version))
-
-        ;; 'localedef' executes 'gzip' to access compressed locale sources.
-        (setenv "PATH" (string-append #$gzip "/bin"))
-
-        (exit
-         (and #$@(map (cut localedef-command <> #:libc libc)
-                      locales)))))
+    (with-imported-modules (source-module-closure
+                            '((gnu build locale)))
+     #~(begin
+         (use-modules (gnu build locale))
+
+         (mkdir #$output)
+         (mkdir (string-append #$output "/" #$version))
+
+         ;; 'localedef' executes 'gzip' to access compressed locale sources.
+         (setenv "PATH"
+                 (string-append #$gzip "/bin:" #$libc "/bin"))
+
+         (setvbuf (current-output-port) 'line)
+         (setvbuf (current-error-port) 'line)
+         (for-each (lambda (locale codeset name)
+                     (build-locale locale
+                                   #:codeset codeset
+                                   #:name name
+                                   #:directory
+                                   (string-append #$output "/" #$version)))
+                   '#$(map locale-definition-source locales)
+                   '#$(map locale-definition-charset locales)
+                   '#$(map locale-definition-name locales)))))
 
   (computed-file (string-append "locale-" version) build))
 
@@ -216,45 +214,16 @@ pairs such as (\"oc_FR.UTF-8\" . \"UTF-8\").  Each pair corresponds to a
 locale supported by GLIBC."
   (define build
     (with-imported-modules (source-module-closure
-                            '((guix build gnu-build-system)))
+                            '((guix build gnu-build-system)
+                              (gnu build locale)))
       #~(begin
           (use-modules (guix build gnu-build-system)
-                       (srfi srfi-1)
-                       (ice-9 rdelim)
-                       (ice-9 match)
-                       (ice-9 regex)
+                       (gnu build locale)
                        (ice-9 pretty-print))
 
           (define unpack
             (assq-ref %standard-phases 'unpack))
 
-          (define locale-rx
-            ;; Regexp matching a locale line in 'localedata/SUPPORTED'.
-            (make-regexp
-             "^[[:space:]]*([[:graph:]]+)/([[:graph:]]+)[[:space:]]*\\\\$"))
-
-          (define (read-supported-locales port)
-            ;; Read the 'localedata/SUPPORTED' file from PORT.  That file is
-            ;; actually a makefile snippet, with one locale per line, and a
-            ;; header that can be discarded.
-            (let loop ((locales '()))
-              (define line
-                (read-line port))
-
-              (cond ((eof-object? line)
-                     (reverse locales))
-                    ((string-prefix? "#" (string-trim line)) ;comment
-                     (loop locales))
-                    ((string-contains line "=")  ;makefile variable assignment
-                     (loop locales))
-                    (else
-                     (match (regexp-exec locale-rx line)
-                       (#f
-                        (loop locales))
-                       (m
-                        (loop (alist-cons (match:substring m 1)
-                                          (match:substring m 2)
-                                          locales))))))))
 
           (setenv "PATH"
                   (string-append #+(file-append tar "/bin") ":"
diff --git a/gnu/tests/docker.scm b/gnu/tests/docker.scm
index 3cd3a27884..f2674cdbe8 100644
--- a/gnu/tests/docker.scm
+++ b/gnu/tests/docker.scm
@@ -101,7 +101,7 @@ inside %DOCKER-OS."
              marionette))
 
           (test-equal "Load docker image and run it"
-            "hello world"
+            '("hello world" "hi!")
             (marionette-eval
              `(begin
                 (define slurp
@@ -117,12 +117,16 @@ inside %DOCKER-OS."
                        (repository&tag (string-drop raw-line
                                                     (string-length
                                                      "Loaded image: ")))
-                       (response (slurp
-                                  ,(string-append #$docker-cli "/bin/docker")
-                                  "run" "--entrypoint" "bin/Guile"
-                                  repository&tag
-                                  "/aa.scm")))
-                  response))
+                       (response1 (slurp
+                                   ,(string-append #$docker-cli "/bin/docker")
+                                   "run" "--entrypoint" "bin/Guile"
+                                   repository&tag
+                                   "/aa.scm"))
+                       (response2 (slurp          ;default entry point
+                                   ,(string-append #$docker-cli "/bin/docker")
+                                   "run" repository&tag
+                                   "-c" "(display \"hi!\")")))
+                  (list response1 response2)))
              marionette))
 
           (test-end)
@@ -161,6 +165,7 @@ standard output device and then enters a new line.")
        (tarball (docker-image "docker-pack" profile
                               #:symlinks '(("/bin/Guile" -> "bin/guile")
                                            ("aa.scm" -> "a.scm"))
+                              #:entry-point "bin/guile"
                               #:localstatedir? #t)))
     (run-docker-test tarball)))
 
diff --git a/gnu/tests/mail.scm b/gnu/tests/mail.scm
index 33aa4d3437..10e5be71d8 100644
--- a/gnu/tests/mail.scm
+++ b/gnu/tests/mail.scm
@@ -4,6 +4,7 @@
 ;;; Copyright © 2017 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.com>
 ;;; Copyright © 2018 Clément Lassieur <clement@lassieur.org>
+;;; Copyright © 2019 Christopher Baines <mail@cbaines.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -25,6 +26,7 @@
   #:use-module (gnu system)
   #:use-module (gnu system vm)
   #:use-module (gnu services)
+  #:use-module (gnu services getmail)
   #:use-module (gnu services mail)
   #:use-module (gnu services networking)
   #:use-module (guix gexp)
@@ -32,7 +34,8 @@
   #:use-module (ice-9 ftw)
   #:export (%test-opensmtpd
             %test-exim
-            %test-dovecot))
+            %test-dovecot
+            %test-getmail))
 
 (define %opensmtpd-os
   (simple-operating-system
@@ -394,3 +397,176 @@ Subject: Hello Nice to meet you!")
    (name "dovecot")
    (description "Connect to a running Dovecot server.")
    (value (run-dovecot-test))))
+
+(define %getmail-os
+  (simple-operating-system
+   (service dhcp-client-service-type)
+   (service dovecot-service-type
+            (dovecot-configuration
+             (disable-plaintext-auth? #f)
+             (ssl? "no")
+             (auth-mechanisms '("anonymous" "plain"))
+             (auth-anonymous-username "alice")
+             (mail-location
+              (string-append "maildir:~/Maildir"
+                             ":INBOX=~/Maildir/INBOX"
+                             ":LAYOUT=fs"))))
+   (service getmail-service-type
+            (list
+             (getmail-configuration
+              (name 'test)
+              (user "alice")
+              (directory "/var/lib/getmail/alice")
+              (idle '("TESTBOX"))
+              (rcfile
+               (getmail-configuration-file
+                (retriever
+                 (getmail-retriever-configuration
+                  (type "SimpleIMAPRetriever")
+                  (server "localhost")
+                  (username "alice")
+                  (port 143)
+                  (extra-parameters
+                   '((password . "testpass")
+                     (mailboxes . ("TESTBOX"))))))
+                (destination
+                 (getmail-destination-configuration
+                  (type "Maildir")
+                  (path "/home/alice/TestMaildir/")))
+                (options
+                 (getmail-options-configuration
+                  (read-all #f))))))))))
+
+(define (run-getmail-test)
+  "Return a test of an OS running Getmail service."
+  (define vm
+    (virtual-machine
+     (operating-system (marionette-operating-system
+                        %getmail-os
+                        #:imported-modules '((gnu services herd))))
+     (port-forwardings '((8143 . 143)))))
+
+  (define test
+    (with-imported-modules '((gnu build marionette))
+      #~(begin
+          (use-modules (gnu build marionette)
+                       (ice-9 iconv)
+                       (ice-9 rdelim)
+                       (rnrs base)
+                       (rnrs bytevectors)
+                       (srfi srfi-64))
+
+          (define marionette
+            (make-marionette '(#$vm)))
+
+          (define* (message-length message #:key (encoding "iso-8859-1"))
+            (bytevector-length (string->bytevector message encoding)))
+
+          (define message "From: test@example.com\n\
+Subject: Hello Nice to meet you!")
+
+          (mkdir #$output)
+          (chdir #$output)
+
+          (test-begin "getmail")
+
+          ;; Wait for dovecot to be up and running.
+          (test-assert "dovecot running"
+            (marionette-eval
+             '(begin
+                (use-modules (gnu services herd))
+                (start-service 'dovecot))
+             marionette))
+
+          (test-assert "set password for alice"
+            (marionette-eval
+             '(system "echo -e \"testpass\ntestpass\" | passwd alice")
+             marionette))
+
+          ;; Wait for getmail to be up and running.
+          (test-assert "getmail-test running"
+            (marionette-eval
+             '(let* ((pw (getpw "alice"))
+                     (uid (passwd:uid pw))
+                     (gid (passwd:gid pw)))
+                (use-modules (gnu services herd))
+
+                (for-each
+                 (lambda (dir)
+                   (mkdir dir)
+                   (chown dir uid gid))
+                 '("/home/alice/TestMaildir"
+                   "/home/alice/TestMaildir/cur"
+                   "/home/alice/TestMaildir/new"
+                   "/home/alice/TestMaildir/tmp"
+                   "/home/alice/TestMaildir/TESTBOX"
+                   "/home/alice/TestMaildir/TESTBOX/cur"
+                   "/home/alice/TestMaildir/TESTBOX/new"
+                   "/home/alice/TestMaildir/TESTBOX/tmp"))
+
+                (start-service 'getmail-test))
+             marionette))
+
+          ;; Check Dovecot service's PID.
+          (test-assert "service process id"
+            (let ((pid
+                   (number->string (wait-for-file "/var/run/dovecot/master.pid"
+                                                  marionette))))
+              (marionette-eval `(file-exists? (string-append "/proc/" ,pid))
+                               marionette)))
+
+          (test-assert "accept an email"
+            (let ((imap (socket AF_INET SOCK_STREAM 0))
+                  (addr (make-socket-address AF_INET INADDR_LOOPBACK 8143)))
+              (connect imap addr)
+              ;; Be greeted.
+              (read-line imap) ;OK
+              ;; Authenticate
+              (write-line "a AUTHENTICATE ANONYMOUS" imap)
+              (read-line imap) ;+
+              (write-line "c2lyaGM=" imap)
+              (read-line imap) ;OK
+              ;; Create a TESTBOX mailbox
+              (write-line "a CREATE TESTBOX" imap)
+              (read-line imap) ;OK
+              ;; Append a message to a TESTBOX mailbox
+              (write-line (format #f "a APPEND TESTBOX {~a}"
+                                  (number->string (message-length message)))
+                          imap)
+              (read-line imap) ;+
+              (write-line message imap)
+              (read-line imap) ;OK
+              ;; Logout
+              (write-line "a LOGOUT" imap)
+              (close imap)
+              #t))
+
+          (sleep 1)
+
+          (test-assert "mail arrived"
+            (string-contains
+             (marionette-eval
+              '(begin
+                 (use-modules (ice-9 ftw)
+                              (ice-9 match))
+                 (let ((TESTBOX/new "/home/alice/TestMaildir/new/"))
+                   (match (scandir TESTBOX/new)
+                     (("." ".." message-file)
+                      (call-with-input-file
+                          (string-append TESTBOX/new message-file)
+                        get-string-all)))))
+              marionette)
+             message))
+
+          (test-end)
+          (exit (= (test-runner-fail-count (test-runner-current)) 0)))))
+
+  (gexp->derivation "getmail-test" test))
+
+(define %test-getmail
+  (system-test
+   (name "getmail")
+   (description "Connect to a running Getmail server.")
+   (value (run-getmail-test))))
+
+%getmail-os
diff --git a/gnu/tests/singularity.scm b/gnu/tests/singularity.scm
new file mode 100644
index 0000000000..668043a0bc
--- /dev/null
+++ b/gnu/tests/singularity.scm
@@ -0,0 +1,137 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2019 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu tests singularity)
+  #:use-module (gnu tests)
+  #:use-module (gnu system)
+  #:use-module (gnu system vm)
+  #:use-module (gnu system shadow)
+  #:use-module (gnu services)
+  #:use-module (gnu services docker)
+  #:use-module (gnu packages bash)
+  #:use-module (gnu packages guile)
+  #:use-module (gnu packages linux)               ;singularity
+  #:use-module (guix gexp)
+  #:use-module (guix store)
+  #:use-module (guix grafts)
+  #:use-module (guix monads)
+  #:use-module (guix packages)
+  #:use-module (guix profiles)
+  #:use-module (guix scripts pack)
+  #:export (%test-singularity))
+
+(define %singularity-os
+  (simple-operating-system
+   (service singularity-service-type)
+   (simple-service 'guest-account
+                   account-service-type
+                   (list (user-account (name "guest") (uid 1000) (group "guest"))
+                         (user-group (name "guest") (id 1000))))))
+
+(define (run-singularity-test image)
+  "Load IMAGE, a Squashfs image, as a Singularity image and run it inside
+%SINGULARITY-OS."
+  (define os
+    (marionette-operating-system %singularity-os))
+
+  (define singularity-exec
+    #~(begin
+        (use-modules (ice-9 popen) (rnrs io ports))
+
+        (let* ((pipe (open-pipe* OPEN_READ
+                                 #$(file-append singularity
+                                                "/bin/singularity")
+                                 "exec" #$image "/bin/guile"
+                                 "-c" "(display \"hello, world\")"))
+               (str  (get-string-all pipe))
+               (status (close-pipe pipe)))
+          (and (zero? status)
+               (string=? str "hello, world")))))
+
+  (define test
+    (with-imported-modules '((gnu build marionette))
+      #~(begin
+          (use-modules (srfi srfi-11) (srfi srfi-64)
+                       (gnu build marionette))
+
+          (define marionette
+            (make-marionette (list #$(virtual-machine os))))
+
+          (mkdir #$output)
+          (chdir #$output)
+
+          (test-begin "singularity")
+
+          (test-assert "singularity exec /bin/guile (as root)"
+            (marionette-eval '#$singularity-exec
+                             marionette))
+
+          (test-equal "singularity exec /bin/guile (unprivileged)"
+            0
+            (marionette-eval
+             `(begin
+                (use-modules (ice-9 match))
+
+                (match (primitive-fork)
+                  (0
+                   (dynamic-wind
+                     (const #f)
+                     (lambda ()
+                       (setgid 1000)
+                       (setuid 1000)
+                       (execl #$(program-file "singularity-exec-test"
+                                              #~(exit #$singularity-exec))
+                              "test"))
+                     (lambda ()
+                       (primitive-exit 127))))
+                  (pid
+                   (cdr (waitpid pid)))))
+             marionette))
+
+          (test-equal "singularity run"           ;test the entry point
+            42
+            (marionette-eval
+             `(status:exit-val
+               (system* #$(file-append singularity "/bin/singularity")
+                        "run" #$image "-c" "(exit 42)"))
+             marionette))
+
+          (test-end)
+          (exit (= (test-runner-fail-count (test-runner-current)) 0)))))
+
+  (gexp->derivation "singularity-test" test))
+
+(define (build-tarball&run-singularity-test)
+  (mlet* %store-monad
+      ((_        (set-grafting #f))
+       (guile    (set-guile-for-build (default-guile)))
+       ;; 'singularity exec' insists on having /bin/sh in the image.
+       (profile  (profile-derivation (packages->manifest
+                                      (list bash-minimal guile-2.2))
+                                     #:hooks '()
+                                     #:locales? #f))
+       (tarball  (squashfs-image "singularity-pack" profile
+                                 #:entry-point "bin/guile"
+                                 #:symlinks '(("/bin" -> "bin")))))
+    (run-singularity-test tarball)))
+
+(define %test-singularity
+  (system-test
+   (name "singularity")
+   (description "Test Singularity container of Guix.")
+   (value (build-tarball&run-singularity-test))))
diff --git a/gnu/tests/web.scm b/gnu/tests/web.scm
index 319655396a..7c1c0aa511 100644
--- a/gnu/tests/web.scm
+++ b/gnu/tests/web.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2017 Ludovic Courtès <ludo@gnu.org>
-;;; Copyright © 2017 Christopher Baines <mail@cbaines.net>
+;;; Copyright © 2017, 2019 Christopher Baines <mail@cbaines.net>
 ;;; Copyright © 2017, 2018 Clément Lassieur <clement@lassieur.org>
 ;;; Copyright © 2018 Pierre-Antoine Rouby <pierre-antoine.rouby@inria.fr>
 ;;; Copyright © 2018 Marius Bakke <mbakke@fastmail.com>
@@ -28,15 +28,29 @@
   #:use-module (gnu system vm)
   #:use-module (gnu services)
   #:use-module (gnu services web)
+  #:use-module (gnu services databases)
+  #:use-module (gnu services getmail)
   #:use-module (gnu services networking)
+  #:use-module (gnu services shepherd)
+  #:use-module (gnu services mail)
+  #:use-module (gnu packages databases)
+  #:use-module (gnu packages patchutils)
+  #:use-module (gnu packages python)
+  #:use-module (gnu packages web)
+  #:use-module (guix packages)
+  #:use-module (guix modules)
+  #:use-module (guix records)
   #:use-module (guix gexp)
   #:use-module (guix store)
+  #:use-module (guix utils)
+  #:use-module (ice-9 match)
   #:export (%test-httpd
             %test-nginx
             %test-varnish
             %test-php-fpm
             %test-hpcguix-web
-            %test-tailon))
+            %test-tailon
+            %test-patchwork))
 
 (define %index.html-contents
   ;; Contents of the /index.html file.
@@ -498,3 +512,149 @@ HTTP-PORT."
    (name "tailon")
    (description "Connect to a running Tailon server.")
    (value (run-tailon-test))))
+
+
+;;;
+;;; Patchwork
+;;;
+
+(define patchwork-initial-database-setup-service
+  (match-lambda
+    (($ <patchwork-database-configuration>
+        engine name user password host port)
+
+     (define start-gexp
+       #~(lambda ()
+           (let ((pid (primitive-fork))
+                 (postgres (getpwnam "postgres")))
+             (if (eq? pid 0)
+                 (dynamic-wind
+                   (const #t)
+                   (lambda ()
+                     (setgid (passwd:gid postgres))
+                     (setuid (passwd:uid postgres))
+                     (primitive-exit
+                      (if (and
+                           (zero?
+                            (system* #$(file-append postgresql "/bin/createuser")
+                                     #$user))
+                           (zero?
+                            (system* #$(file-append postgresql "/bin/createdb")
+                                     "-O" #$user #$name)))
+                          0
+                          1)))
+                   (lambda ()
+                     (primitive-exit 1)))
+                 (zero? (cdr (waitpid pid)))))))
+
+     (shepherd-service
+      (requirement '(postgres))
+      (provision '(patchwork-postgresql-user-and-database))
+      (start start-gexp)
+      (stop #~(const #f))
+      (respawn? #f)
+      (documentation "Setup patchwork database.")))))
+
+(define (patchwork-os patchwork)
+  (simple-operating-system
+   (service dhcp-client-service-type)
+   (service httpd-service-type
+            (httpd-configuration
+             (config
+              (httpd-config-file
+               (listen '("8080"))))))
+   (service postgresql-service-type)
+   (service patchwork-service-type
+            (patchwork-configuration
+             (patchwork patchwork)
+             (domain "localhost")
+             (settings-module
+              (patchwork-settings-module
+               (allowed-hosts (list domain))
+               (default-from-email "")))
+             (getmail-retriever-config
+              (getmail-retriever-configuration
+               (type "SimpleIMAPSSLRetriever")
+               (server "imap.example.com")
+               (port 993)
+               (username "username")
+               (password "password")
+               (extra-parameters
+                '((mailboxes . ("INBOX"))))))))
+   (simple-service 'patchwork-database-setup
+                   shepherd-root-service-type
+                   (list
+                    (patchwork-initial-database-setup-service
+                     (patchwork-database-configuration))))))
+
+(define (run-patchwork-test patchwork)
+  "Run tests in %NGINX-OS, which has nginx running and listening on
+HTTP-PORT."
+  (define os
+    (marionette-operating-system
+     (patchwork-os patchwork)
+     #:imported-modules '((gnu services herd)
+                          (guix combinators))))
+
+  (define forwarded-port 8080)
+
+  (define vm
+    (virtual-machine
+     (operating-system os)
+     (port-forwardings `((8080 . ,forwarded-port)))))
+
+  (define test
+    (with-imported-modules '((gnu build marionette))
+      #~(begin
+          (use-modules (srfi srfi-11) (srfi srfi-64)
+                       (gnu build marionette)
+                       (web uri)
+                       (web client)
+                       (web response))
+
+          (define marionette
+            (make-marionette (list #$vm)))
+
+          (mkdir #$output)
+          (chdir #$output)
+
+          (test-begin "patchwork")
+
+          (test-assert "patchwork-postgresql-user-and-service started"
+            (marionette-eval
+             '(begin
+                (use-modules (gnu services herd))
+                (match (start-service 'patchwork-postgresql-user-and-database)
+                  (#f #f)
+                  (('service response-parts ...)
+                   (match (assq-ref response-parts 'running)
+                     ((#t) #t)
+                     ((pid) (number? pid))))))
+             marionette))
+
+          (test-assert "httpd running"
+            (marionette-eval
+             '(begin
+                (use-modules (gnu services herd))
+                (start-service 'httpd))
+             marionette))
+
+          (test-equal "http-get"
+            200
+            (let-values
+                (((response text)
+                  (http-get #$(simple-format
+                               #f "http://localhost:~A/" forwarded-port)
+                            #:decode-body? #t)))
+              (response-code response)))
+
+          (test-end)
+          (exit (= (test-runner-fail-count (test-runner-current)) 0)))))
+
+  (gexp->derivation "patchwork-test" test))
+
+(define %test-patchwork
+  (system-test
+   (name "patchwork")
+   (description "Connect to a running Patchwork service.")
+   (value (run-patchwork-test patchwork))))
diff --git a/guix/build-system/cargo.scm b/guix/build-system/cargo.scm
index dc137421e9..fa211d456d 100644
--- a/guix/build-system/cargo.scm
+++ b/guix/build-system/cargo.scm
@@ -29,6 +29,8 @@
   #:use-module (guix build-system)
   #:use-module (guix build-system gnu)
   #:use-module (ice-9 match)
+  #:use-module (ice-9 vlist)
+  #:use-module (srfi srfi-1)
   #:use-module (srfi srfi-26)
   #:export (%cargo-build-system-modules
             %cargo-utils-modules
@@ -118,18 +120,128 @@ to NAME and VERSION."
                                 #:inputs inputs
                                 #:system system
                                 #:modules imported-modules
-                                #:outputs (cons "src" outputs)
+                                #:outputs outputs
                                 #:guile-for-build guile-for-build))
 
+(define (package-cargo-inputs p)
+  (apply
+    (lambda* (#:key (cargo-inputs '()) #:allow-other-keys)
+      cargo-inputs)
+    (package-arguments p)))
+
+(define (package-cargo-development-inputs p)
+  (apply
+    (lambda* (#:key (cargo-development-inputs '()) #:allow-other-keys)
+      cargo-development-inputs)
+    (package-arguments p)))
+
+(define (crate-closure inputs)
+  "Return the closure of INPUTS when considering the 'cargo-inputs' and
+'cargod-dev-deps' edges.  Omit duplicate inputs, except for those
+already present in INPUTS itself.
+
+This is implemented as a breadth-first traversal such that INPUTS is
+preserved, and only duplicate extracted inputs are removed.
+
+Forked from ((guix packages) transitive-inputs) since this extraction
+uses slightly different rules compared to the rest of Guix (i.e. we
+do not extract the conventional inputs)."
+  (define (seen? seen item)
+    ;; FIXME: We're using pointer identity here, which is extremely sensitive
+    ;; to memoization in package-producing procedures; see
+    ;; <https://bugs.gnu.org/30155>.
+    (vhash-assq item seen))
+
+  (let loop ((inputs     inputs)
+             (result     '())
+             (propagated '())
+             (first?     #t)
+             (seen       vlist-null))
+    (match inputs
+      (()
+       (if (null? propagated)
+           (reverse result)
+           (loop (reverse (concatenate propagated)) result '() #f seen)))
+      (((and input (label (? package? package))) rest ...)
+       (if (and (not first?) (seen? seen package))
+           (loop rest result propagated first? seen)
+           (loop rest
+                 (cons input result)
+                 (cons (package-cargo-inputs package)
+                       propagated)
+                 first?
+                 (vhash-consq package package seen))))
+      ((input rest ...)
+       (loop rest (cons input result) propagated first? seen)))))
+
+(define (expand-crate-sources cargo-inputs cargo-development-inputs)
+  "Extract all transitive sources for CARGO-INPUTS and CARGO-DEVELOPMENT-INPUTS
+along their 'cargo-inputs' edges.
+
+Cargo requires all transitive crate dependencies' sources to be available
+in its index, even if they are optional (this is so it can generate
+deterministic Cargo.lock files regardless of the target platform or enabled
+features). Thus we need all transitive crate dependencies for any cargo
+dev-dependencies, but this is only needed when building/testing a crate directly
+(i.e. we will never need transitive dev-dependencies for any dependency crates).
+
+Another complication arises due potential dependency cycles from Guix's
+perspective: Although cargo does not permit cyclic dependencies between crates,
+however, it permits cycles to occur via dev-dependencies. For example, if crate
+X depends on crate Y, crate Y's tests could pull in crate X to to verify
+everything builds properly (this is a rare scenario, but it it happens for
+example with the `proc-macro2` and `quote` crates). This is allowed by cargo
+because tests are built as a pseudo-crate which happens to depend on the
+X and Y crates, forming an acyclic graph.
+
+We can side step this problem by only considering regular cargo dependencies
+since they are guaranteed to not have cycles. We can further resolve any
+potential dev-dependency cycles by extracting package sources (which never have
+any dependencies and thus no cycles can exist).
+
+There are several implications of this decision:
+* Building a package definition does not require actually building/checking
+any dependent crates. This can be a benefits:
+ - For example, sometimes a crate may have an optional dependency on some OS
+ specific package which cannot be built or run on the current system. This
+ approach means that the build will not fail if cargo ends up internally ignoring
+ the dependency.
+ - It avoids waiting for quadratic builds from source: cargo always builds
+ dependencies within the current workspace. This is largely due to Rust not
+ having a stable ABI and other resolutions that cargo applies. This means that
+ if we have a depencency chain of X -> Y -> Z and we build each definition
+ independently the following will happen:
+  * Cargo will build and test crate Z
+  * Cargo will build crate Z in Y's workspace, then build and test Y
+  * Cargo will build crates Y and Z in X's workspace, then build and test X
+* But there are also some downsides with this approach:
+  - If a dependent crate is subtly broken on the system (i.e. it builds but its
+  tests fail) the consuming crates may build and test successfully but
+  actually fail during normal usage (however, the CI will still build all
+  packages which will give visibility in case packages suddenly break).
+  - Because crates aren't declared as regular inputs, other Guix facilities
+  such as tracking package graphs may not work by default (however, this is
+  something that can always be extended or reworked in the future)."
+  (filter-map
+    (match-lambda
+      ((label (? package? p))
+       (list label (package-source p)))
+      ((label input)
+       (list label input)))
+    (crate-closure (append cargo-inputs cargo-development-inputs))))
+
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (rust (default-rust))
+                (cargo-inputs '())
+                (cargo-development-inputs '())
                 #:allow-other-keys
                 #:rest arguments)
   "Return a bag for NAME."
 
   (define private-keywords
-    '(#:source #:target #:rust #:inputs #:native-inputs #:outputs))
+    '(#:source #:target #:rust #:inputs #:native-inputs #:outputs
+      #:cargo-inputs #:cargo-development-inputs))
 
   (and (not target) ;; TODO: support cross-compilation
        (bag
@@ -145,6 +257,7 @@ to NAME and VERSION."
                         ,@(standard-packages)))
          (build-inputs `(("cargo" ,rust "cargo")
                          ("rustc" ,rust)
+                         ,@(expand-crate-sources cargo-inputs cargo-development-inputs)
                          ,@native-inputs))
          (outputs outputs)
          (build cargo-build)
diff --git a/guix/build-system/guile.scm b/guix/build-system/guile.scm
index 77a5f00b01..2c5cc968ce 100644
--- a/guix/build-system/guile.scm
+++ b/guix/build-system/guile.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -75,6 +75,7 @@
                       (search-paths '())
                       (system (%current-system))
                       (source-directory ".")
+                      not-compiled-file-regexp
                       (compile-flags %compile-flags)
                       (imported-modules %guile-build-system-modules)
                       (modules '((guix build guile-build-system)
@@ -92,6 +93,7 @@
                                 (source
                                  source))
                     #:source-directory ,source-directory
+                    #:not-compiled-file-regexp ,not-compiled-file-regexp
                     #:compile-flags ,compile-flags
                     #:phases ,phases
                     #:system ,system
@@ -128,6 +130,7 @@
 
                             (phases '%standard-phases)
                             (source-directory ".")
+                            not-compiled-file-regexp
                             (compile-flags %compile-flags)
                             (imported-modules %guile-build-system-modules)
                             (modules '((guix build guile-build-system)
@@ -168,6 +171,7 @@
                       #:target ,target
                       #:outputs %outputs
                       #:source-directory ,source-directory
+                      #:not-compiled-file-regexp ,not-compiled-file-regexp
                       #:compile-flags ,compile-flags
                       #:inputs %build-target-inputs
                       #:native-inputs %build-host-inputs
diff --git a/guix/build/cargo-build-system.scm b/guix/build/cargo-build-system.scm
index 9f44bd6ee9..1f36304b15 100644
--- a/guix/build/cargo-build-system.scm
+++ b/guix/build/cargo-build-system.scm
@@ -54,6 +54,22 @@
          (bin-dep? (lambda (dep) (find bin? (get-kinds dep)))))
     (find bin-dep? (manifest-targets))))
 
+(define (crate-src? path)
+  "Check if PATH refers to a crate source, namely a gzipped tarball with a
+Cargo.toml file present at its root."
+    (and (gzip-file? path)
+         ;; First we print out all file names within the tarball to see if it
+         ;; looks like the source of a crate. However, the tarball will include
+         ;; an extra path component which we would like to ignore (since we're
+         ;; interested in checking if a Cargo.toml exists at the root of the
+         ;; archive, but not nested anywhere else). We do this by cutting up
+         ;; each output line and only looking at the second component. We then
+         ;; check if it matches Cargo.toml exactly and short circuit if it does.
+         (zero? (apply system* (list "sh" "-c"
+                                     (string-append "tar -tf " path
+                                                    " | cut -d/ -f2"
+                                                    " | grep -q '^Cargo.toml$'"))))))
+
 (define* (configure #:key inputs
                     (vendor-dir "guix-vendor")
                     #:allow-other-keys)
@@ -67,14 +83,21 @@
   (for-each
     (match-lambda
       ((name . path)
-       (let* ((rust-share (string-append path "/share/rust-source"))
-              (basepath (basename path))
-              (link-dir (string-append vendor-dir "/" basepath)))
-         (and (file-exists? rust-share)
+       (let* ((basepath (basename path))
+              (crate-dir (string-append vendor-dir "/" basepath)))
+         (and (crate-src? path)
               ;; Gracefully handle duplicate inputs
-              (not (file-exists? link-dir))
-              (symlink rust-share link-dir)))))
+              (not (file-exists? crate-dir))
+              (mkdir-p crate-dir)
+              ;; Cargo crates are simply gzipped tarballs but with a .crate
+              ;; extension. We expand the source to a directory name we control
+              ;; so that we can generate any cargo checksums.
+              ;; The --strip-components argument is needed to prevent creating
+              ;; an extra directory within `crate-dir`.
+              (invoke "tar" "xvf" path "-C" crate-dir "--strip-components" "1")
+              (generate-checksums crate-dir)))))
     inputs)
+
   ;; Configure cargo to actually use this new directory.
   (mkdir-p ".cargo")
   (let ((port (open-file ".cargo/config" "w" #:encoding "utf-8")))
@@ -117,24 +140,6 @@ directory = '" port)
 (define (touch file-name)
   (call-with-output-file file-name (const #t)))
 
-(define* (install-source #:key inputs outputs #:allow-other-keys)
-  "Install the source for a given Cargo package."
-  (let* ((out (assoc-ref outputs "out"))
-         (src (assoc-ref inputs "source"))
-         (rsrc (string-append (assoc-ref outputs "src")
-                              "/share/rust-source")))
-    (mkdir-p rsrc)
-    ;; Rust doesn't have a stable ABI yet. Because of this
-    ;; Cargo doesn't have a search path for binaries yet.
-    ;; Until this changes we are working around this by
-    ;; vendoring the crates' sources by symlinking them
-    ;; to store paths.
-    (copy-recursively "." rsrc)
-    (touch (string-append rsrc "/.cargo-ok"))
-    (generate-checksums rsrc)
-    (install-file "Cargo.toml" rsrc)
-    #t))
-
 (define* (install #:key inputs outputs skip-build? #:allow-other-keys)
   "Install a given Cargo package."
   (let* ((out (assoc-ref outputs "out")))
@@ -156,7 +161,6 @@ directory = '" port)
 (define %standard-phases
   (modify-phases gnu:%standard-phases
     (delete 'bootstrap)
-    (add-before 'configure 'install-source install-source)
     (replace 'configure configure)
     (replace 'build build)
     (replace 'check check)
diff --git a/guix/build/compile.scm b/guix/build/compile.scm
index 9e31be93ff..794f12379c 100644
--- a/guix/build/compile.scm
+++ b/guix/build/compile.scm
@@ -40,8 +40,12 @@
 
 (define %default-optimizations
   ;; Default optimization options (equivalent to -O2 on Guile 2.2).
-  (append (tree-il-default-optimization-options)
-          (cps-default-optimization-options)))
+  (append (if (defined? 'tree-il-default-optimization-options)
+              (tree-il-default-optimization-options) ;Guile 2.2
+              (tree-il-optimizations))               ;Guile 3
+          (if (defined? 'cps-default-optimization-options)
+              (cps-default-optimization-options)  ;Guile 2.2
+              (cps-optimizations))))              ;Guile 3
 
 (define %lightweight-optimizations
   ;; Lightweight optimizations (like -O0, but with partial evaluation).
diff --git a/guix/build/guile-build-system.scm b/guix/build/guile-build-system.scm
index 31f0d3d6f4..32a431d347 100644
--- a/guix/build/guile-build-system.scm
+++ b/guix/build/guile-build-system.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -19,10 +19,13 @@
 (define-module (guix build guile-build-system)
   #:use-module ((guix build gnu-build-system) #:prefix gnu:)
   #:use-module (guix build utils)
+  #:use-module (srfi srfi-1)
   #:use-module (srfi srfi-26)
   #:use-module (ice-9 match)
   #:use-module (ice-9 popen)
   #:use-module (ice-9 rdelim)
+  #:use-module (ice-9 regex)
+  #:use-module (ice-9 format)
   #:use-module (guix build utils)
   #:export (target-guile-effective-version
             %standard-phases
@@ -74,11 +77,19 @@ Raise an error if one of the processes exit with non-zero."
   (define total
     (length commands))
 
+  (define processes
+    (make-hash-table))
+
   (define (wait-for-one-process)
     (match (waitpid WAIT_ANY)
-      ((_ . status)
-       (unless (zero? (status:exit-val status))
-         (error "process failed" status)))))
+      ((pid . status)
+       (let ((command (hashv-ref processes pid)))
+         (hashv-remove! processes command)
+         (unless (zero? (status:exit-val status))
+           (format (current-error-port)
+                   "process '~{~a ~}' failed with status ~a~%"
+                   command status)
+           (exit 1))))))
 
   (define (fork-and-run-command command)
     (match (primitive-fork)
@@ -90,6 +101,7 @@ Raise an error if one of the processes exit with non-zero."
          (lambda ()
            (primitive-exit 127))))
       (pid
+       (hashv-set! processes pid command)
        #t)))
 
   (let loop ((commands  commands)
@@ -117,17 +129,20 @@ Raise an error if one of the processes exit with non-zero."
 (define* (report-build-progress total completed
                                 #:optional (log-port (current-error-port)))
   "Report that COMPLETED out of TOTAL files have been completed."
-  (format log-port "compiling...\t~5,1f% of ~d files~%" ;FIXME: i18n
-          (* 100. (/ completed total)) total)
+  (format log-port "[~2d/~2d] Compiling...~%"
+          completed total)
   (force-output log-port))
 
 (define* (build #:key outputs inputs native-inputs
                 (source-directory ".")
                 (compile-flags '())
                 (scheme-file-regexp %scheme-file-regexp)
+                (not-compiled-file-regexp #f)
                 target
                 #:allow-other-keys)
-  "Build files in SOURCE-DIRECTORY that match SCHEME-FILE-REGEXP."
+  "Build files in SOURCE-DIRECTORY that match SCHEME-FILE-REGEXP.  Files
+matching NOT-COMPILED-FILE-REGEXP, if true, are not compiled but are
+installed; this is useful for files that are meant to be included."
   (let* ((out        (assoc-ref outputs "out"))
          (guile      (assoc-ref (or native-inputs inputs) "guile"))
          (effective  (target-guile-effective-version guile))
@@ -162,16 +177,19 @@ Raise an error if one of the processes exit with non-zero."
            (with-directory-excursion source-directory
              (find-files "." scheme-file-regexp))))
     (invoke-each
-     (map (lambda (file)
-            (cons* guild
-                   "guild" "compile"
-                   "-L" source-directory
-                   "-o" (string-append go-dir
-                                       (file-sans-extension file)
-                                       ".go")
-                   (string-append source-directory "/" file)
-                   flags))
-          source-files)
+     (filter-map (lambda (file)
+                   (and (or (not not-compiled-file-regexp)
+                            (not (string-match not-compiled-file-regexp
+                                               file)))
+                        (cons* guild
+                               "guild" "compile"
+                               "-L" source-directory
+                               "-o" (string-append go-dir
+                                                   (file-sans-extension file)
+                                                   ".go")
+                               (string-append source-directory "/" file)
+                               flags)))
+                 source-files)
      #:max-processes (parallel-job-count)
      #:report-progress report-build-progress)
 
diff --git a/guix/build/syscalls.scm b/guix/build/syscalls.scm
index 3abe65bc4f..5c2eb3c14d 100644
--- a/guix/build/syscalls.scm
+++ b/guix/build/syscalls.scm
@@ -81,7 +81,11 @@
             fdatasync
             pivot-root
             scandir*
+
             fcntl-flock
+            lock-file
+            unlock-file
+            with-file-lock
 
             set-thread-name
             thread-name
@@ -1067,6 +1071,42 @@ exception if it's already taken."
           ;; Presumably we got EAGAIN or so.
           (throw 'flock-error err))))))
 
+(define (lock-file file)
+  "Wait and acquire an exclusive lock on FILE.  Return an open port."
+  (let ((port (open-file file "w0")))
+    (fcntl-flock port 'write-lock)
+    port))
+
+(define (unlock-file port)
+  "Unlock PORT, a port returned by 'lock-file'."
+  (fcntl-flock port 'unlock)
+  (close-port port)
+  #t)
+
+(define (call-with-file-lock file thunk)
+  (let ((port (catch 'system-error
+                (lambda ()
+                  (lock-file file))
+                (lambda args
+                  ;; When using the statically-linked Guile in the initrd,
+                  ;; 'fcntl-flock' returns ENOSYS unconditionally.  Ignore
+                  ;; that error since we're typically the only process running
+                  ;; at this point.
+                  (if (= ENOSYS (system-error-errno args))
+                      #f
+                      (apply throw args))))))
+    (dynamic-wind
+      (lambda ()
+        #t)
+      thunk
+      (lambda ()
+        (when port
+          (unlock-file port))))))
+
+(define-syntax-rule (with-file-lock file exp ...)
+  "Wait to acquire a lock on FILE and evaluate EXP in that context."
+  (call-with-file-lock file (lambda () exp ...)))
+
 
 ;;;
 ;;; Miscellaneous, aka. 'prctl'.
diff --git a/guix/channels.scm b/guix/channels.scm
index e93879e1b4..e7278c6060 100644
--- a/guix/channels.scm
+++ b/guix/channels.scm
@@ -27,7 +27,7 @@
   #:use-module (guix profiles)
   #:use-module (guix derivations)
   #:use-module (guix combinators)
-  #:use-module (guix deprecation)
+  #:use-module (guix diagnostics)
   #:use-module (guix store)
   #:use-module (guix i18n)
   #:use-module ((guix utils)
@@ -280,7 +280,7 @@ package modules under SOURCE using CORE, an instance of Guix."
                       ;; Disable deprecation warnings; it's OK for SCRIPT to
                       ;; use deprecated APIs and the user doesn't have to know
                       ;; about it.
-                      (parameterize ((deprecation-warning-port
+                      (parameterize ((guix-warning-port
                                       (%make-void-port "w")))
                         (primitive-load script))))))
         ;; BUILD must be a monadic procedure of at least one argument: the
diff --git a/guix/deprecation.scm b/guix/deprecation.scm
index 2f7c058940..468b2e9b7b 100644
--- a/guix/deprecation.scm
+++ b/guix/deprecation.scm
@@ -18,39 +18,26 @@
 
 (define-module (guix deprecation)
   #:use-module (guix i18n)
-  #:use-module (ice-9 format)
+  #:use-module (guix diagnostics)
+  #:autoload   (guix utils) (source-properties->location)
   #:export (define-deprecated
             define-deprecated/alias
-            deprecation-warning-port))
+            warn-about-deprecation))
 
 ;;; Commentary:
 ;;;
 ;;; Provide a mechanism to mark bindings as deprecated.
 ;;;
-;;; We don't reuse (guix ui) mostly to avoid pulling in too many things.
-;;;
 ;;; Code:
 
-(define deprecation-warning-port
-  ;; Port where deprecation warnings go.
-  (make-parameter (current-error-port)))
-
-(define (source-properties->location-string properties)
-  "Return a human-friendly, GNU-standard representation of PROPERTIES, a
-source property alist."
-  (let ((file   (assq-ref properties 'filename))
-        (line   (assq-ref properties 'line))
-        (column (assq-ref properties 'column)))
-    (if (and file line column)
-        (format #f "~a:~a:~a" file (+ 1 line) column)
-        (G_ "<unknown location>"))))
-
 (define* (warn-about-deprecation variable properties
                                  #:key replacement)
-  (format (deprecation-warning-port)
-          (G_ "~a: warning: '~a' is deprecated~@[, use '~a' instead~]~%")
-          (source-properties->location-string properties)
-          variable replacement))
+  (let ((location (and properties (source-properties->location properties))))
+    (if replacement
+        (warning location (G_ "'~a' is deprecated, use '~a' instead~%")
+                 variable replacement)
+        (warning location (G_ "'~a' is deprecated~%")
+                 variable))))
 
 (define-syntax define-deprecated
   (lambda (s)
@@ -59,7 +46,7 @@ source property alist."
   (define-deprecated foo bar 42)
   (define-deprecated (baz x y) qux (qux y x))
 
-This will write a deprecation warning to DEPRECATION-WARNING-PORT."
+This will write a deprecation warning to GUIX-WARNING-PORT."
     (syntax-case s ()
       ((_ (proc formals ...) replacement body ...)
        #'(define-deprecated proc replacement
@@ -96,7 +83,7 @@ these lines:
 
 where 'nix-server?' is the deprecated name for 'store-connection?'.
 
-This will write a deprecation warning to DEPRECATION-WARNING-PORT."
+This will write a deprecation warning to GUIX-WARNING-PORT."
   (define-syntax deprecated
     (lambda (s)
       (warn-about-deprecation 'deprecated (syntax-source s)
diff --git a/guix/derivations.scm b/guix/derivations.scm
index 7a5c3bca94..cad77bdb06 100644
--- a/guix/derivations.scm
+++ b/guix/derivations.scm
@@ -982,12 +982,17 @@ recursively."
 
 (define* (build-derivations store derivations
                             #:optional (mode (build-mode normal)))
-  "Build DERIVATIONS, a list of <derivation> objects or .drv file names, using
-the specified MODE."
+  "Build DERIVATIONS, a list of <derivation> objects, .drv file names, or
+derivation/output pairs, using the specified MODE."
   (build-things store (map (match-lambda
+                            ((? derivation? drv)
+                             (derivation-file-name drv))
                             ((? string? file) file)
-                            ((and drv ($ <derivation>))
-                             (derivation-file-name drv)))
+                            (((? derivation? drv) . output)
+                             (cons (derivation-file-name drv)
+                                   output))
+                            (((? string? file) . output)
+                             (cons file output)))
                            derivations)
                 mode))
 
diff --git a/guix/diagnostics.scm b/guix/diagnostics.scm
new file mode 100644
index 0000000000..380cfbb613
--- /dev/null
+++ b/guix/diagnostics.scm
@@ -0,0 +1,173 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix diagnostics)
+  #:use-module (guix colors)
+  #:use-module (guix i18n)
+  #:autoload   (guix utils) (<location>)
+  #:use-module (srfi srfi-26)
+  #:use-module (ice-9 format)
+  #:use-module (ice-9 match)
+  #:export (warning
+            info
+            report-error
+            leave
+
+            location->string
+
+            guix-warning-port
+            program-name))
+
+;;; Commentary:
+;;;
+;;; This module provides the tools to report diagnostics to the user in a
+;;; consistent way: errors, warnings, and notes.
+;;;
+;;; Code:
+
+(define-syntax highlight-argument
+  (lambda (s)
+    "Given FMT and ARG, expand ARG to a call that highlights it, provided FMT
+is a trivial format string."
+    (define (trivial-format-string? fmt)
+      (define len
+        (string-length fmt))
+
+      (let loop ((start 0))
+        (or (>= (+ 1 start) len)
+            (let ((tilde (string-index fmt #\~ start)))
+              (or (not tilde)
+                  (case (string-ref fmt (+ tilde 1))
+                    ((#\a #\A #\%) (loop (+ tilde 2)))
+                    (else          #f)))))))
+
+    ;; Be conservative: limit format argument highlighting to cases where the
+    ;; format string contains nothing but ~a escapes.  If it contained ~s
+    ;; escapes, this strategy wouldn't work.
+    (syntax-case s ()
+      ((_ "~a~%" arg)                          ;don't highlight whole messages
+       #'arg)
+      ((_ fmt arg)
+       (trivial-format-string? (syntax->datum #'fmt))
+       #'(%highlight-argument arg))
+      ((_ fmt arg)
+       #'arg))))
+
+(define* (%highlight-argument arg #:optional (port (guix-warning-port)))
+  "Highlight ARG, a format string argument, if PORT supports colors."
+  (cond ((string? arg)
+         (highlight arg port))
+        ((symbol? arg)
+         (highlight (symbol->string arg) port))
+        (else arg)))
+
+(define-syntax define-diagnostic
+  (syntax-rules ()
+    "Create a diagnostic macro (i.e., NAME), which will prepend PREFIX to all
+messages."
+    ((_ name (G_ prefix) colors)
+     (define-syntax name
+       (lambda (x)
+         (syntax-case x ()
+           ((name location (underscore fmt) args (... ...))
+            (and (string? (syntax->datum #'fmt))
+                 (free-identifier=? #'underscore #'G_))
+            #'(begin
+                (print-diagnostic-prefix prefix location
+                                         #:colors colors)
+                (format (guix-warning-port) (gettext fmt %gettext-domain)
+                        (highlight-argument fmt args) (... ...))))
+           ((name location (N-underscore singular plural n)
+                  args (... ...))
+            (and (string? (syntax->datum #'singular))
+                 (string? (syntax->datum #'plural))
+                 (free-identifier=? #'N-underscore #'N_))
+            #'(begin
+                (print-diagnostic-prefix prefix location
+                                         #:colors colors)
+                (format (guix-warning-port)
+                        (ngettext singular plural n %gettext-domain)
+                        (highlight-argument singular args) (... ...))))
+           ((name (underscore fmt) args (... ...))
+            (free-identifier=? #'underscore #'G_)
+            #'(name #f (underscore fmt) args (... ...)))
+           ((name (N-underscore singular plural n)
+                  args (... ...))
+            (free-identifier=? #'N-underscore #'N_)
+            #'(name #f (N-underscore singular plural n)
+                    args (... ...)))))))))
+
+;; XXX: This doesn't work well for right-to-left languages.
+;; TRANSLATORS: The goal is to emit "warning:" followed by a short phrase;
+;; "~a" is a placeholder for that phrase.
+(define-diagnostic warning (G_ "warning: ") %warning-color) ;emit a warning
+(define-diagnostic info (G_ "") %info-color)
+(define-diagnostic report-error (G_ "error: ") %error-color)
+
+(define-syntax-rule (leave args ...)
+  "Emit an error message and exit."
+  (begin
+    (report-error args ...)
+    (exit 1)))
+
+(define %warning-color (color BOLD MAGENTA))
+(define %info-color (color BOLD))
+(define %error-color (color BOLD RED))
+
+(define* (print-diagnostic-prefix prefix #:optional location
+                                  #:key (colors (color)))
+  "Print PREFIX as a diagnostic line prefix."
+  (define color?
+    (color-output? (guix-warning-port)))
+
+  (define location-color
+    (if color?
+        (cut colorize-string <> (color BOLD))
+        identity))
+
+  (define prefix-color
+    (if color?
+        (lambda (prefix)
+          (colorize-string prefix colors))
+        identity))
+
+  (let ((prefix (if (string-null? prefix)
+                    prefix
+                    (gettext prefix %gettext-domain))))
+    (if location
+        (format (guix-warning-port) "~a: ~a"
+                (location-color (location->string location))
+                (prefix-color prefix))
+        (format (guix-warning-port) "~:[~*~;guix ~a: ~]~a"
+                (program-name) (program-name)
+                (prefix-color prefix)))))
+
+(define (location->string loc)
+  "Return a human-friendly, GNU-standard representation of LOC."
+  (match loc
+    (#f (G_ "<unknown location>"))
+    (($ <location> file line column)
+     (format #f "~a:~a:~a" file line column))))
+
+
+(define guix-warning-port
+  (make-parameter (current-warning-port)))
+
+(define program-name
+  ;; Name of the command-line program currently executing, or #f.
+  (make-parameter #f))
diff --git a/guix/discovery.scm b/guix/discovery.scm
index ef5ae73973..5bb494941b 100644
--- a/guix/discovery.scm
+++ b/guix/discovery.scm
@@ -145,8 +145,8 @@ Call (PROC MODULE RESULT) for each module that is found."
   "Return the list of package modules found in PATH, a list of directories to
 search.  Entries in PATH can be directory names (strings) or (DIRECTORY
 . SUB-DIRECTORY) pairs, in which case modules are searched for beneath
-SUB-DIRECTORY."
-  (fold-modules cons '() path #:warn warn))
+SUB-DIRECTORY. Modules are listed in the order they appear on the path."
+  (reverse (fold-modules cons '() path #:warn warn)))
 
 (define (fold-module-public-variables* proc init modules)
   "Call (PROC MODULE SYMBOL VARIABLE) for each variable exported by one of MODULES,
diff --git a/guix/download.scm b/guix/download.scm
index 11984cf671..cd5d61cd13 100644
--- a/guix/download.scm
+++ b/guix/download.scm
@@ -393,8 +393,8 @@
      (module-autoload! (current-module)
                        '(guix base16) '(bytevector->base16-string))
 
-     (list (guix-publish "mirror.hydra.gnu.org")
-           (guix-publish "berlin.guixsd.org")
+     (list (guix-publish "ci.guix.gnu.org")
+           (guix-publish "mirror.hydra.gnu.org")
            (lambda (file algo hash)
              ;; 'tarballs.nixos.org' supports several algorithms.
              (string-append "https://tarballs.nixos.org/"
diff --git a/guix/git-download.scm b/guix/git-download.scm
index 6cf267d6c8..f904d11c25 100644
--- a/guix/git-download.scm
+++ b/guix/git-download.scm
@@ -185,9 +185,7 @@ are relative to DIRECTORY, which is not necessarily the root of the checkout."
          (directory  (string-append (canonicalize-path directory) "/"))
          (dot-git    (repository-discover directory))
          (repository (repository-open dot-git))
-         ;; XXX: This procedure is mistakenly private in Guile-Git 0.1.0.
-         (workdir    ((@@ (git repository) repository-working-directory)
-                      repository))
+         (workdir    (repository-working-directory repository))
          (head       (repository-head repository))
          (oid        (reference-target head))
          (commit     (commit-lookup repository oid))
diff --git a/guix/gnu-maintenance.scm b/guix/gnu-maintenance.scm
index a434a39f2d..d63d44f629 100644
--- a/guix/gnu-maintenance.scm
+++ b/guix/gnu-maintenance.scm
@@ -621,9 +621,9 @@ releases are on gnu.org."
     (false-if-ftp-error
      (latest-ftp-release
       (package-upstream-name package)
-      #:server "mirrors.mit.edu"
-      #:directory
-      (string-append "/kde" (dirname (dirname (uri-path uri))))))))
+      #:server "ftp.mirrorservice.org"
+      #:directory (string-append "/sites/ftp.kde.org/pub/kde/"
+                                 (dirname (dirname (uri-path uri))))))))
 
 (define (latest-xorg-release package)
   "Return the latest release of PACKAGE, the name of an X.org package."
diff --git a/guix/import/cabal.scm b/guix/import/cabal.scm
index 13c2f3f48c..1a87be0b00 100644
--- a/guix/import/cabal.scm
+++ b/guix/import/cabal.scm
@@ -270,6 +270,10 @@ following lines with indentation larger than MIN-INDENT."
                 (peek-next-line-indent port)))
         val)))
 
+(define* (read-braced-value port)
+  "Read up to a closing brace."
+  (string-trim-both (read-delimited "}" port 'trim)))
+
 (define (lex-white-space port bol)
   "Consume white spaces and comment lines on PORT.  If a new line is started return #t,
 otherwise return BOL (beginning-of-line)."
@@ -343,8 +347,11 @@ matching a string against the created regexp."
                 (make-regexp pat))))
     (cut regexp-exec rx <>)))
 
-(define is-property (make-rx-matcher "([a-z0-9-]+)[ \t]*:[ \t]*(\\w?.*)$"
-                                     regexp/icase))
+(define is-layout-property (make-rx-matcher "([a-z0-9-]+)[ \t]*:[ \t]*(\\w?[^{}]*)$"
+                                            regexp/icase))
+
+(define is-braced-property (make-rx-matcher "([a-z0-9-]+)[ \t]*:[ \t]*\\{[ \t]*$"
+                                            regexp/icase))
 
 (define is-flag (make-rx-matcher "^flag +([a-z0-9_-]+)"
                                  regexp/icase))
@@ -435,13 +442,19 @@ string with the read characters."
                  (begin (unread-char c) (list->string res)))))
           (else (list->string res)))))
 
-(define (lex-property k-v-rx-res loc port)
+(define (lex-layout-property k-v-rx-res loc port)
   (let ((key (string-downcase (match:substring k-v-rx-res 1)))
         (value (match:substring k-v-rx-res 2)))
     (make-lexical-token
      'PROPERTY loc
      (list key `(,(read-value port value (current-indentation)))))))
 
+(define (lex-braced-property k-rx-res loc port)
+  (let ((key (string-downcase (match:substring k-rx-res 1))))
+    (make-lexical-token
+     'PROPERTY loc
+     (list key `(,(read-braced-value port))))))
+
 (define (lex-rx-res rx-res token loc)
   (let ((name (string-downcase (match:substring rx-res 1))))
     (make-lexical-token token loc name)))
@@ -552,7 +565,6 @@ LOC is the current port location."
 the current port location."
   (let* ((s (read-delimited "\n{}" port 'peek)))
     (cond
-     ((is-property s) => (cut lex-property <> loc port))
      ((is-flag s) => (cut lex-flag <> loc))
      ((is-src-repo s) => (cut lex-src-repo <> loc))
      ((is-exec s) => (cut lex-exec <> loc))
@@ -561,13 +573,22 @@ the current port location."
      ((is-benchmark s) => (cut lex-benchmark <> loc))
      ((is-lib s) (lex-lib loc))
      ((is-else s) (lex-else loc))
-     (else
-      #f))))
+     (else (unread-string s port) #f))))
+
+(define (lex-property port loc)
+  (let* ((s (read-delimited "\n" port 'peek)))
+    (cond
+      ((is-braced-property s) => (cut lex-braced-property <> loc port))
+      ((is-layout-property s) => (cut lex-layout-property <> loc port))
+      (else #f))))
 
 (define (lex-token port)
   (let* ((loc (make-source-location (cabal-file-name) (port-line port)
                                     (port-column port) -1 -1)))
-    (or (lex-single-char port loc) (lex-word port loc) (lex-line port loc))))
+    (or (lex-single-char port loc)
+        (lex-word port loc)
+        (lex-line port loc)
+        (lex-property port loc))))
 
 ;; Lexer- and error-function generators
 
diff --git a/guix/import/cran.scm b/guix/import/cran.scm
index 4763fccd36..3240094444 100644
--- a/guix/import/cran.scm
+++ b/guix/import/cran.scm
@@ -313,7 +313,9 @@ from the alist META, which was derived from the R package's DESCRIPTION file."
          (tarball    (download source-url))
          (sysdepends (append
                       (if (needs-zlib? tarball) '("zlib") '())
-                      (map string-downcase (listify meta "SystemRequirements"))))
+                      (filter (lambda (name)
+                                (not (member name invalid-packages)))
+                              (map string-downcase (listify meta "SystemRequirements")))))
          (propagate  (filter (lambda (name)
                                (not (member name (append default-r-packages
                                                          invalid-packages))))
diff --git a/guix/import/crate.scm b/guix/import/crate.scm
index e0b400d054..9a73d9fe16 100644
--- a/guix/import/crate.scm
+++ b/guix/import/crate.scm
@@ -65,29 +65,53 @@
              (path (string-append "/" version "/dependencies"))
              (deps-json (json-fetch-alist (string-append crate-url name path)))
              (deps (assoc-ref deps-json "dependencies"))
-             (input-crates (filter (crate-kind-predicate "normal") deps))
-             (native-input-crates
+             (dep-crates (filter (crate-kind-predicate "normal") deps))
+             (dev-dep-crates
               (filter (lambda (dep)
                         (not ((crate-kind-predicate "normal") dep))) deps))
-             (inputs (crates->inputs input-crates))
-             (native-inputs (crates->inputs native-input-crates))
+             (cargo-inputs (crates->inputs dep-crates))
+             (cargo-development-inputs (crates->inputs dev-dep-crates))
              (home-page (match homepage
                           (() repository)
                           (_ homepage))))
     (callback #:name name #:version version
-              #:inputs inputs #:native-inputs native-inputs
+              #:cargo-inputs cargo-inputs
+              #:cargo-development-inputs cargo-development-inputs
               #:home-page home-page #:synopsis synopsis
               #:description description #:license license)))
 
-(define* (make-crate-sexp #:key name version inputs native-inputs
+(define (maybe-cargo-inputs package-names)
+  (match (package-names->package-inputs package-names)
+    (()
+     '())
+    ((package-inputs ...)
+     `((#:cargo-inputs ,package-inputs)))))
+
+(define (maybe-cargo-development-inputs package-names)
+  (match (package-names->package-inputs package-names)
+    (()
+     '())
+    ((package-inputs ...)
+     `((#:cargo-development-inputs ,package-inputs)))))
+
+(define (maybe-arguments arguments)
+  (match arguments
+    (()
+     '())
+    ((args ...)
+     `((arguments (,'quasiquote ,args))))))
+
+(define* (make-crate-sexp #:key name version cargo-inputs cargo-development-inputs
                           home-page synopsis description license
                           #:allow-other-keys)
   "Return the `package' s-expression for a rust package with the given NAME,
-VERSION, INPUTS, NATIVE-INPUTS, HOME-PAGE, SYNOPSIS, DESCRIPTION, and LICENSE."
+VERSION, CARGO-INPUTS, CARGO-DEVELOPMENT-INPUTS, HOME-PAGE, SYNOPSIS, DESCRIPTION,
+and LICENSE."
   (let* ((port (http-fetch (crate-uri name version)))
          (guix-name (crate-name->package-name name))
-         (inputs (map crate-name->package-name inputs))
-         (native-inputs (map crate-name->package-name native-inputs))
+         (cargo-inputs (map crate-name->package-name cargo-inputs))
+         (cargo-development-inputs (map crate-name->package-name
+                                        cargo-development-inputs))
          (pkg `(package
                    (name ,guix-name)
                    (version ,version)
@@ -99,8 +123,9 @@ VERSION, INPUTS, NATIVE-INPUTS, HOME-PAGE, SYNOPSIS, DESCRIPTION, and LICENSE."
                               (base32
                                ,(bytevector->nix-base32-string (port-sha256 port))))))
                    (build-system cargo-build-system)
-                   ,@(maybe-native-inputs native-inputs "src")
-                   ,@(maybe-inputs inputs "src")
+                   ,@(maybe-arguments (append (maybe-cargo-inputs cargo-inputs)
+                                              (maybe-cargo-development-inputs
+                                                cargo-development-inputs)))
                    (home-page ,(match home-page
                                  (() "")
                                  (_ home-page)))
diff --git a/guix/import/hackage.scm b/guix/import/hackage.scm
index 2a51420d14..366256b40d 100644
--- a/guix/import/hackage.scm
+++ b/guix/import/hackage.scm
@@ -51,34 +51,35 @@
             hackage-package?))
 
 (define ghc-standard-libraries
-  ;; List of libraries distributed with ghc (7.10.2). We include GHC itself as
-  ;; some packages list it.
-  '("array"
+  ;; List of libraries distributed with ghc (8.4.3).
+  ;; https://downloads.haskell.org/~ghc/8.4.3/docs/html/users_guide/8.4.3-notes.html
+  '("ghc"
+    "cabal" ;; in the output of `ghc-pkg list` Cabal is uppercased, but
+            ;; hackage-name->package-name takes this into account.
+    "win32" ;; similarly uppercased
+    "array"
     "base"
-    "bin-package-db"
     "binary"
     "bytestring"
-    "cabal" ;; in the output of `ghc-pkg list` Cabal is uppercased, but
-            ;; hackage-name->package-name takes this into account.
     "containers"
     "deepseq"
     "directory"
     "filepath"
-    "ghc"
+    "ghc-boot"
+    "ghc-compact"
     "ghc-prim"
+    "ghci"
     "haskeline"
-    "hoopl"
     "hpc"
     "integer-gmp"
-    "pretty"
+    "mtl"
+    "parsec"
     "process"
-    "rts"
     "template-haskell"
-    "terminfo"
+    "text"
     "time"
     "transformers"
     "unix"
-    "win32"
     "xhtml"))
 
 (define package-name-prefix "ghc-")
@@ -145,10 +146,12 @@ version."
    ("LGPL" "'lgpl??")
    ("BSD2" 'bsd-2)
    ("BSD3" 'bsd-3)
+   ("BSD-3-Clause" 'bsd-3)
    ("MIT" 'expat)
    ("ISC" 'isc)
    ("MPL" 'mpl2.0)
    ("Apache-2.0" 'asl2.0)
+   ("PublicDomain" 'public-domain)
    ((x) (string->license x))
    ((lst ...) `(list ,@(map string->license lst)))
    (_ #f)))
@@ -277,13 +280,11 @@ representation of a Cabal file as produced by 'read-cabal'."
         (license ,(string->license (cabal-package-license cabal))))
      (append hackage-dependencies hackage-native-dependencies))))
 
-(define hackage->guix-package
-  (memoize
-   (lambda* (package-name #:key
-                          (include-test-dependencies? #t)
-                          (port #f)
-                          (cabal-environment '()))
-     "Fetch the Cabal file for PACKAGE-NAME from hackage.haskell.org, or, if the
+(define* (hackage->guix-package package-name #:key
+                                (include-test-dependencies? #t)
+                                (port #f)
+                                (cabal-environment '()))
+  "Fetch the Cabal file for PACKAGE-NAME from hackage.haskell.org, or, if the
 called with keyword parameter PORT, from PORT.  Return the `package'
 S-expression corresponding to that package, or #f on failure.
 CABAL-ENVIRONMENT is an alist defining the environment in which the Cabal
@@ -293,18 +294,22 @@ symbol 'true' or 'false'.  The value associated with other keys has to conform
 to the Cabal file format definition.  The default value associated with the
 keys \"os\", \"arch\" and \"impl\" is \"linux\", \"x86_64\" and \"ghc\"
 respectively."
-     (let ((cabal-meta (if port
-                           (read-cabal (canonical-newline-port port))
-                           (hackage-fetch package-name))))
-       (and=> cabal-meta (compose (cut hackage-module->sexp <>
-                                       #:include-test-dependencies?
-                                       include-test-dependencies?)
-                                  (cut eval-cabal <> cabal-environment)))))))
+  (let ((cabal-meta (if port
+                        (read-cabal (canonical-newline-port port))
+                        (hackage-fetch package-name))))
+    (and=> cabal-meta (compose (cut hackage-module->sexp <>
+                                    #:include-test-dependencies?
+                                    include-test-dependencies?)
+                               (cut eval-cabal <> cabal-environment)))))
+
+(define hackage->guix-package/m                   ;memoized variant
+  (memoize hackage->guix-package))
 
 (define* (hackage-recursive-import package-name . args)
   (recursive-import package-name #f
                     #:repo->guix-package (lambda (name repo)
-                                           (apply hackage->guix-package (cons name args)))
+                                           (apply hackage->guix-package/m
+                                                  (cons name args)))
                     #:guix-name hackage-name->package-name))
 
 (define (hackage-package? package)
diff --git a/guix/import/print.scm b/guix/import/print.scm
index 0bec32c8dc..4c2a91fa4f 100644
--- a/guix/import/print.scm
+++ b/guix/import/print.scm
@@ -94,12 +94,13 @@ when evaluated."
           (map (match-lambda
                  ((label pkg . out)
                   (let ((mod (package-module-name pkg)))
-                    (list label
-                          ;; FIXME: using '@ certainly isn't pretty, but it
-                          ;; avoids having to import the individual package
-                          ;; modules.
-                          (list 'unquote
-                                (list '@ mod (variable-name pkg mod)))))))
+                    (cons* label
+                           ;; FIXME: using '@ certainly isn't pretty, but it
+                           ;; avoids having to import the individual package
+                           ;; modules.
+                           (list 'unquote
+                                 (list '@ mod (variable-name pkg mod)))
+                           out))))
                lsts)))
 
   (let ((name                (package-name package))
diff --git a/guix/import/utils.scm b/guix/import/utils.scm
index 516c0cfaa2..84503ab907 100644
--- a/guix/import/utils.scm
+++ b/guix/import/utils.scm
@@ -1,9 +1,10 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016 Jelle Licht <jlicht@fsfe.org>
 ;;; Copyright © 2016 David Craven <david@craven.ch>
 ;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.com>
+;;; Copyright © 2019 Robert Vollmert <rob@vllmrt.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -51,6 +52,7 @@
             url-fetch
             guix-hash-url
 
+            package-names->package-inputs
             maybe-inputs
             maybe-native-inputs
             package->definition
@@ -235,6 +237,9 @@ into a proper sentence and by using two spaces between sentences."
                               cleaned 'pre ".  " 'post)))
 
 (define* (package-names->package-inputs names #:optional (output #f))
+  "Given a list of PACKAGE-NAMES, and an optional OUTPUT, tries to generate a
+quoted list of inputs, as suitable to use in an 'inputs' field of a package
+definition."
   (map (lambda (input)
          (cons* input (list 'unquote (string->symbol input))
                             (or (and output (list output))
@@ -286,7 +291,7 @@ package value."
   (map (lambda (spec)
          (let-values (((pkg out) (specification->package+output spec)))
            (match out
-             (("out") (list (package-name pkg) pkg))
+             ("out" (list (package-name pkg) pkg))
              (_ (list (package-name pkg) pkg out)))))
        specs))
 
@@ -378,57 +383,35 @@ separated by PRED."
                            #:allow-other-keys)
   "Generate a stream of package expressions for PACKAGE-NAME and all its
 dependencies."
-  (receive (package . dependencies)
-      (repo->guix-package package-name repo)
-    (if (not package)
-        stream-null
-
-        ;; Generate a lazy stream of package expressions for all unknown
-        ;; dependencies in the graph.
-        (let* ((make-state (lambda (queue done)
-                             (cons queue done)))
-               (next       (match-lambda
-                             (((next . rest) . done) next)))
-               (imported   (match-lambda
-                             ((queue . done) done)))
-               (done?      (match-lambda
-                             ((queue . done)
-                              (zero? (length queue)))))
-               (unknown?   (lambda* (dependency #:optional (done '()))
-                             (and (not (member dependency
-                                               done))
-                                  (null? (find-packages-by-name
-                                          (guix-name dependency))))))
-               (update     (lambda (state new-queue)
-                             (match state
-                               (((head . tail) . done)
-                                (make-state (lset-difference
-                                             equal?
-                                             (lset-union equal? new-queue tail)
-                                             done)
-                                            (cons head done)))))))
-          (stream-cons
-           package
-           (stream-unfold
-            ;; map: produce a stream element
-            (lambda (state)
-              (repo->guix-package (next state) repo))
-
-            ;; predicate
-            (negate done?)
-
-            ;; generator: update the queue
-            (lambda (state)
-              (receive (package . dependencies)
-                  (repo->guix-package (next state) repo)
-                (if package
-                    (update state (filter (cut unknown? <>
-                                               (cons (next state)
-                                                     (imported state)))
-                                          (car dependencies)))
-                    ;; TODO: Try the other archives before giving up
-                    (update state (imported state)))))
-
-            ;; initial state
-            (make-state (filter unknown? (car dependencies))
-                        (list package-name))))))))
+  (define (exists? dependency)
+    (not (null? (find-packages-by-name (guix-name dependency)))))
+  (define initial-state (list #f (list package-name) (list)))
+  (define (step state)
+    (match state
+      ((prev (next . rest) done)
+       (define (handle? dep)
+         (and
+           (not (equal? dep next))
+           (not (member dep done))
+           (not (exists? dep))))
+       (receive (package . dependencies) (repo->guix-package next repo)
+         (list
+           (if package package '()) ;; default #f on failure would interrupt
+           (if package
+             (lset-union equal? rest (filter handle? (car dependencies)))
+             rest)
+           (cons next done))))
+      ((prev '() done)
+       (list #f '() done))))
+
+  ;; Generate a lazy stream of package expressions for all unknown
+  ;; dependencies in the graph.
+  (stream-unfold
+    ;; map: produce a stream element
+    (match-lambda ((latest queue done) latest))
+    ;; predicate
+    (match-lambda ((latest queue done) latest))
+    ;; generator: update the queue
+    step
+    ;; initial state
+    (step initial-state)))
diff --git a/guix/lzlib.scm b/guix/lzlib.scm
index a6dac46049..24c7b4b448 100644
--- a/guix/lzlib.scm
+++ b/guix/lzlib.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2019 Pierre Neidhardt <mail@ambrevar.xyz>
+;;; Copyright © 2019 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -23,9 +24,11 @@
   #:use-module (ice-9 match)
   #:use-module (system foreign)
   #:use-module (guix config)
+  #:use-module (srfi srfi-11)
   #:export (lzlib-available?
             make-lzip-input-port
             make-lzip-output-port
+            make-lzip-input-port/compressed
             call-with-lzip-input-port
             call-with-lzip-output-port
             %default-member-length-limit
@@ -168,7 +171,7 @@ so use it only when needed. "
   (let ((proc (lzlib-procedure int "LZ_compress_read" (list '* '* int))))
     (lambda* (encoder lzfile-bv #:optional (start 0) (count (bytevector-length lzfile-bv)))
       "Read up to COUNT bytes from the encoder stream, storing the results in LZFILE-BV.
-Return the number of uncompressed bytes written, a strictly positive integer."
+Return the number of uncompressed bytes written, a positive integer."
       (let ((ret (proc (lz-encoder->pointer encoder)
                        (bytevector->pointer lzfile-bv start)
                        count)))
@@ -491,29 +494,50 @@ perhaps not yet read."
 
 
 ;; High level functions.
-(define* (lzread! decoder file-port bv
+
+(define* (lzread! decoder port bv
                   #:optional (start 0) (count (bytevector-length bv)))
-  "Read up to COUNT bytes from FILE-PORT into BV at offset START.  Return the
+  "Read up to COUNT bytes from PORT into BV at offset START.  Return the
 number of uncompressed bytes actually read; it is zero if COUNT is zero or if
 the end-of-stream has been reached."
-  ;; WARNING: Because we don't alternate between lz-reads and lz-writes, we can't
-  ;; process more than lz-decompress-write-size from the file-port.
-  (when (> count (lz-decompress-write-size decoder))
-    (set! count (lz-decompress-write-size decoder)))
-  (let ((file-bv (get-bytevector-n file-port count)))
-    (unless (eof-object? file-bv)
-      (lz-decompress-write decoder file-bv 0 (bytevector-length file-bv))))
-  (let ((read 0))
-    (let loop ((rd 0))
-      (if (< start (bytevector-length bv))
-          (begin
-            (set! rd (lz-decompress-read decoder bv start (- (bytevector-length bv) start)))
-            (set! start (+ start rd))
-            (set! read (+ read rd)))
-          (set! rd 0))
-      (unless (= rd 0)
-        (loop rd)))
-    read))
+  (define (feed-decoder! decoder)
+    ;; Feed DECODER with data read from PORT.
+    (match (get-bytevector-n port (lz-decompress-write-size decoder))
+      ((? eof-object? eof) eof)
+      (bv (lz-decompress-write decoder bv))))
+
+  (let loop ((read 0)
+             (start start))
+    (cond ((< read count)
+           (match (lz-decompress-read decoder bv start (- count read))
+             (0 (cond ((lz-decompress-finished? decoder)
+                       read)
+                      ((eof-object? (feed-decoder! decoder))
+                       (lz-decompress-finish decoder)
+                       (loop read start))
+                      (else                       ;read again
+                       (loop read start))))
+             (n (loop (+ read n) (+ start n)))))
+          (else
+           read))))
+
+(define (lzwrite! encoder source source-offset source-count
+                  target target-offset target-count)
+  "Write up to SOURCE-COUNT bytes from SOURCE to ENCODER, and read up to
+TARGET-COUNT bytes into TARGET at TARGET-OFFSET.  Return two values: the
+number of bytes read from SOURCE, and the number of bytes written to TARGET,
+possibly zero."
+  (define read
+    (if (> (lz-compress-write-size encoder) 0)
+        (match (lz-compress-write encoder source source-offset source-count)
+          (0 (lz-compress-finish encoder) 0)
+          (n n))
+        0))
+
+  (define written
+    (lz-compress-read encoder target target-offset target-count))
+
+  (values read written))
 
 (define* (lzwrite encoder bv lz-port
                   #:optional (start 0) (count (bytevector-length bv)))
@@ -597,6 +621,56 @@ port is closed."
                                     (lz-compress-close encoder)
                                     (close-port port))))
 
+(define* (make-lzip-input-port/compressed port
+                                          #:key
+                                          (level %default-compression-level))
+  "Return an input port that compresses data read from PORT, with the given LEVEL.
+PORT is automatically closed when the resulting port is closed."
+  (define encoder (apply lz-compress-open
+                         (car (assoc-ref %compression-levels level))))
+
+  (define input-buffer (make-bytevector 8192))
+  (define input-len 0)
+  (define input-offset 0)
+
+  (define input-eof? #f)
+
+  (define (read! bv start count)
+    (cond
+     (input-eof?
+      (match (lz-compress-read encoder bv start count)
+        (0 (if (lz-compress-finished? encoder)
+               0
+               (read! bv start count)))
+        (n n)))
+     ((= input-offset input-len)
+      (match (get-bytevector-n! port input-buffer 0
+                                (bytevector-length input-buffer))
+        ((? eof-object?)
+         (set! input-eof? #t)
+         (lz-compress-finish encoder))
+        (count
+         (set! input-offset 0)
+         (set! input-len count)))
+      (read! bv start count))
+     (else
+      (let-values (((read written)
+                    (lzwrite! encoder
+                              input-buffer input-offset
+                              (- input-len input-offset)
+                              bv start count)))
+        (set! input-offset (+ input-offset read))
+
+        ;; Make sure we don't return zero except on EOF.
+        (if (= 0 written)
+            (read! bv start count)
+            written)))))
+
+  (make-custom-binary-input-port "lzip-input/compressed"
+                                 read! #f #f
+                                 (lambda ()
+                                   (close-port port))))
+
 (define* (call-with-lzip-input-port port proc)
   "Call PROC with a port that wraps PORT and decompresses data read from it.
 PORT is closed upon completion."
diff --git a/guix/nar.scm b/guix/nar.scm
index 8894f10d2b..29636aa0f8 100644
--- a/guix/nar.scm
+++ b/guix/nar.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014 Mark H Weaver <mhw@netris.org>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -76,16 +76,6 @@
 ;; most of the daemon is in Scheme :-)).  But note that we do use a couple of
 ;; RPCs for functionality not available otherwise, like 'valid-path?'.
 
-(define (lock-store-file file)
-  "Acquire exclusive access to FILE, a store file."
-  (call-with-output-file (string-append file ".lock")
-    (cut fcntl-flock <> 'write-lock)))
-
-(define (unlock-store-file file)
-  "Release access to FILE."
-  (call-with-input-file (string-append file ".lock")
-    (cut fcntl-flock <> 'unlock)))
-
 (define* (finalize-store-file source target
                               #:key (references '()) deriver (lock? #t))
   "Rename SOURCE to TARGET and register TARGET as a valid store item, with
@@ -94,25 +84,25 @@ before attempting to register it; otherwise, assume TARGET's locks are already
 held."
   (with-database %default-database-file db
     (unless (path-id db target)
-      (when lock?
-        (lock-store-file target))
+      (let ((lock (and lock?
+                       (lock-file (string-append target ".lock")))))
 
-      (unless (path-id db target)
-        ;; If FILE already exists, delete it (it's invalid anyway.)
-        (when (file-exists? target)
-          (delete-file-recursively target))
+        (unless (path-id db target)
+          ;; If FILE already exists, delete it (it's invalid anyway.)
+          (when (file-exists? target)
+            (delete-file-recursively target))
 
-        ;; Install the new TARGET.
-        (rename-file source target)
+          ;; Install the new TARGET.
+          (rename-file source target)
 
-        ;; Register TARGET.  As a side effect, it resets the timestamps of all
-        ;; its files, recursively, and runs a deduplication pass.
-        (register-path target
-                       #:references references
-                       #:deriver deriver))
+          ;; Register TARGET.  As a side effect, it resets the timestamps of all
+          ;; its files, recursively, and runs a deduplication pass.
+          (register-path target
+                         #:references references
+                         #:deriver deriver))
 
-      (when lock?
-        (unlock-store-file target)))))
+        (when lock?
+          (unlock-file lock))))))
 
 (define (temporary-store-file)
   "Return the file name of a temporary file created in the store."
diff --git a/guix/progress.scm b/guix/progress.scm
index 65080bcf24..f150b081d6 100644
--- a/guix/progress.scm
+++ b/guix/progress.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2017 Sou Bunnbu <iyzsong@gmail.com>
 ;;; Copyright © 2015 Steve Sprang <scs@stevesprang.com>
-;;; Copyright © 2017, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2018 Clément Lassieur <clement@lassieur.org>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -229,7 +229,7 @@ throughput."
 
 (define %progress-interval
   ;; Default interval between subsequent outputs for rate-limited displays.
-  (make-time time-monotonic 200000000 0))
+  (make-time time-duration 200000000 0))
 
 (define* (progress-reporter/file file size
                                  #:optional (log-port (current-output-port))
diff --git a/guix/scripts/challenge.scm b/guix/scripts/challenge.scm
index 65de42053d..17e87f0291 100644
--- a/guix/scripts/challenge.scm
+++ b/guix/scripts/challenge.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2016, 2017, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -192,7 +192,7 @@ inconclusive reports."
         (report (G_ "  no local build for '~a'~%") item))
     (for-each (lambda (narinfo)
                 (report (G_ "  ~50a: ~a~%")
-                        (uri->string (narinfo-uri narinfo))
+                        (uri->string (first (narinfo-uris narinfo)))
                         (hash->string
                          (narinfo-hash->sha256 (narinfo-hash narinfo)))))
               narinfos))
diff --git a/guix/scripts/offload.scm b/guix/scripts/offload.scm
index eb02672dbf..0c0dd9d516 100644
--- a/guix/scripts/offload.scm
+++ b/guix/scripts/offload.scm
@@ -236,30 +236,6 @@ instead of '~a' of type '~a'~%")
 ;;; Synchronization.
 ;;;
 
-(define (lock-file file)
-  "Wait and acquire an exclusive lock on FILE.  Return an open port."
-  (mkdir-p (dirname file))
-  (let ((port (open-file file "w0")))
-    (fcntl-flock port 'write-lock)
-    port))
-
-(define (unlock-file lock)
-  "Unlock LOCK."
-  (fcntl-flock lock 'unlock)
-  (close-port lock)
-  #t)
-
-(define-syntax-rule (with-file-lock file exp ...)
-  "Wait to acquire a lock on FILE and evaluate EXP in that context."
-  (let ((port (lock-file file)))
-    (dynamic-wind
-      (lambda ()
-        #t)
-      (lambda ()
-        exp ...)
-      (lambda ()
-        (unlock-file port)))))
-
 (define (machine-slot-file machine slot)
   "Return the file name of MACHINE's file for SLOT."
   ;; For each machine we have a bunch of files representing each build slot.
@@ -829,7 +805,6 @@ This tool is meant to be used internally by 'guix-daemon'.\n"))
      (leave (G_ "invalid arguments: ~{~s ~}~%") x))))
 
 ;;; Local Variables:
-;;; eval: (put 'with-file-lock 'scheme-indent-function 1)
 ;;; eval: (put 'with-error-to-port 'scheme-indent-function 1)
 ;;; eval: (put 'with-timeout 'scheme-indent-function 2)
 ;;; End:
diff --git a/guix/scripts/pack.scm b/guix/scripts/pack.scm
index 802b26c64c..c8cb7b959d 100644
--- a/guix/scripts/pack.scm
+++ b/guix/scripts/pack.scm
@@ -152,6 +152,7 @@ dependencies are registered."
                                  #:key target
                                  (profile-name "guix-profile")
                                  deduplicate?
+                                 entry-point
                                  (compressor (first %compressors))
                                  localstatedir?
                                  (symlinks '())
@@ -275,6 +276,10 @@ added to the pack."
                                           (_ #f))
                                         directives)))))))))
 
+  (when entry-point
+    (warning (G_ "entry point not supported in the '~a' format~%")
+             'tarball))
+
   (gexp->derivation (string-append name ".tar"
                                    (compressor-extension compressor))
                     build
@@ -284,6 +289,7 @@ added to the pack."
                          #:key target
                          (profile-name "guix-profile")
                          (compressor (first %compressors))
+                         entry-point
                          localstatedir?
                          (symlinks '())
                          (archiver squashfs-tools-next))
@@ -315,6 +321,7 @@ added to the pack."
                        (ice-9 match))
 
           (define database #+database)
+          (define entry-point #$entry-point)
 
           (setenv "PATH" (string-append #$archiver "/bin"))
 
@@ -371,6 +378,28 @@ added to the pack."
                                                             target)))))))
                       '#$symlinks)
 
+                   ;; Create /.singularity.d/actions, and optionally the 'run'
+                   ;; script, used by 'singularity run'.
+                   "-p" "/.singularity.d d 555 0 0"
+                   "-p" "/.singularity.d/actions d 555 0 0"
+                   ,@(if entry-point
+                         `(;; This one if for Singularity 2.x.
+                           "-p"
+                           ,(string-append
+                             "/.singularity.d/actions/run s 777 0 0 "
+                             (relative-file-name "/.singularity.d/actions"
+                                                 (string-append #$profile "/"
+                                                                entry-point)))
+
+                           ;; This one is for Singularity 3.x.
+                           "-p"
+                           ,(string-append
+                             "/.singularity.d/runscript s 777 0 0 "
+                             (relative-file-name "/.singularity.d"
+                                                 (string-append #$profile "/"
+                                                                entry-point))))
+                         '())
+
                    ;; Create empty mount points.
                    "-p" "/proc d 555 0 0"
                    "-p" "/sys d 555 0 0"
@@ -392,6 +421,7 @@ added to the pack."
                        #:key target
                        (profile-name "guix-profile")
                        (compressor (first %compressors))
+                       entry-point
                        localstatedir?
                        (symlinks '())
                        (archiver tar))
@@ -425,6 +455,9 @@ the image."
                                 #$profile
                                 #:database #+database
                                 #:system (or #$target (utsname:machine (uname)))
+                                #:entry-point #$(and entry-point
+                                                     #~(string-append #$profile "/"
+                                                                      #$entry-point))
                                 #:symlinks '#$symlinks
                                 #:compressor '#$(compressor-command compressor)
                                 #:creation-time (make-time time-utc 0 1))))))
@@ -689,6 +722,9 @@ please email '~a'~%")
                  (lambda (opt name arg result)
                    (alist-cons 'system arg
                                (alist-delete 'system result eq?))))
+         (option '("entry-point") #t #f
+                 (lambda (opt name arg result)
+                   (alist-cons 'entry-point arg result)))
          (option '("target") #t #f
                  (lambda (opt name arg result)
                    (alist-cons 'target arg
@@ -766,6 +802,9 @@ Create a bundle of PACKAGE.\n"))
   (display (G_ "
   -m, --manifest=FILE    create a pack with the manifest from FILE"))
   (display (G_ "
+      --entry-point=PROGRAM
+                         use PROGRAM as the entry point of the pack"))
+  (display (G_ "
       --save-provenance  save provenance information"))
   (display (G_ "
       --localstatedir    include /var/guix in the resulting pack"))
@@ -889,6 +928,7 @@ Create a bundle of PACKAGE.\n"))
                                  (leave (G_ "~a: unknown pack format~%")
                                         pack-format))))
                  (localstatedir? (assoc-ref opts 'localstatedir?))
+                 (entry-point    (assoc-ref opts 'entry-point))
                  (profile-name   (assoc-ref opts 'profile-name))
                  (gc-root        (assoc-ref opts 'gc-root)))
             (when (null? (manifest-entries manifest))
@@ -919,6 +959,8 @@ Create a bundle of PACKAGE.\n"))
                                                      symlinks
                                                      #:localstatedir?
                                                      localstatedir?
+                                                     #:entry-point
+                                                     entry-point
                                                      #:profile-name
                                                      profile-name
                                                      #:archiver
diff --git a/guix/scripts/package.scm b/guix/scripts/package.scm
index 06e4cf5b9c..5751123525 100644
--- a/guix/scripts/package.scm
+++ b/guix/scripts/package.scm
@@ -57,7 +57,6 @@
   #:export (build-and-use-profile
             delete-generations
             delete-matching-generations
-            display-search-paths
             guix-package
 
             (%options . %package-options)
@@ -169,8 +168,7 @@ hooks\" run when building the profile."
                               "~a packages in profile~%"
                               count)
                        count)
-               (display-search-paths entries (list profile)
-                                     #:kind 'prefix)))
+               (display-search-path-hint entries profile)))
 
         (warn-about-disk-space profile))))))
 
@@ -289,17 +287,23 @@ symlinks like 'canonicalize-path' would do."
       file
       (string-append (getcwd) "/" file)))
 
-(define* (display-search-paths entries profiles
-                               #:key (kind 'exact))
-  "Display the search path environment variables that may need to be set for
-ENTRIES, a list of manifest entries, in the context of PROFILE."
-  (let* ((profiles (map (compose user-friendly-profile absolutize)
-                        profiles))
-         (settings (search-path-environment-variables entries profiles
-                                                      #:kind kind)))
+(define (display-search-path-hint entries profile)
+  "Display a hint on how to set environment variables to use ENTRIES, a list
+of manifest entries, in the context of PROFILE."
+  (let* ((profile  (user-friendly-profile (absolutize profile)))
+         (settings (search-path-environment-variables entries (list profile)
+                                                      #:kind 'prefix)))
     (unless (null? settings)
-      (format #t (G_ "The following environment variable definitions may be needed:~%"))
-      (format #t "~{   ~a~%~}" settings))))
+      (display-hint (format #f (G_ "Consider setting the necessary environment
+variables by running:
+
+@example
+GUIX_PROFILE=\"~a\"
+. \"$GUIX_PROFILE/etc/profile\"
+@end example
+
+Alternately, see @command{guix package --search-paths -p ~s}.")
+                            profile profile)))))
 
 
 ;;;
diff --git a/guix/scripts/publish.scm b/guix/scripts/publish.scm
index a236f3e45c..b4334b3f16 100644
--- a/guix/scripts/publish.scm
+++ b/guix/scripts/publish.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2015 David Thompson <davet@gnu.org>
-;;; Copyright © 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -51,6 +51,7 @@
   #:use-module (guix store)
   #:use-module ((guix serialization) #:select (write-file))
   #:use-module (guix zlib)
+  #:autoload   (guix lzlib) (lzlib-available?)
   #:use-module (guix cache)
   #:use-module (guix ui)
   #:use-module (guix scripts)
@@ -74,8 +75,8 @@ Publish ~a over HTTP.\n") %store-directory)
   (display (G_ "
   -u, --user=USER        change privileges to USER as soon as possible"))
   (display (G_ "
-  -C, --compression[=LEVEL]
-                         compress archives at LEVEL"))
+  -C, --compression[=METHOD:LEVEL]
+                         compress archives with METHOD at LEVEL"))
   (display (G_ "
   -c, --cache=DIRECTORY  cache published items to DIRECTORY"))
   (display (G_ "
@@ -121,11 +122,14 @@ Publish ~a over HTTP.\n") %store-directory)
   ;; Since we compress on the fly, default to fast compression.
   (compression 'gzip 3))
 
-(define (actual-compression item requested)
-  "Return the actual compression used for ITEM, which may be %NO-COMPRESSION
+(define (default-compression type)
+  (compression type 3))
+
+(define (actual-compressions item requested)
+  "Return the actual compressions used for ITEM, which may be %NO-COMPRESSION
 if ITEM is already compressed."
   (if (compressed-file? item)
-      %no-compression
+      (list %no-compression)
       requested))
 
 (define %options
@@ -153,18 +157,28 @@ if ITEM is already compressed."
                             name)))))
         (option '(#\C "compression") #f #t
                 (lambda (opt name arg result)
-                  (match (if arg (string->number* arg) 3)
-                    (0
-                     (alist-cons 'compression %no-compression result))
-                    (level
-                     (if (zlib-available?)
-                         (alist-cons 'compression
-                                     (compression 'gzip level)
-                                     result)
-                         (begin
-                           (warning (G_ "zlib support is missing; \
-compression disabled~%"))
-                           result))))))
+                  (let* ((colon (string-index arg #\:))
+                         (type  (cond
+                                 (colon (string-take arg colon))
+                                 ((string->number arg) "gzip")
+                                 (else arg)))
+                         (level (if colon
+                                    (string->number*
+                                     (string-drop arg (+ 1 colon)))
+                                    (or (string->number arg) 3))))
+                    (match level
+                      (0
+                       (alist-cons 'compression %no-compression result))
+                      (level
+                       (match (string->compression-type type)
+                         ((? symbol? type)
+                          (alist-cons 'compression
+                                      (compression type level)
+                                      result))
+                         (_
+                          (warning (G_ "~a: unsupported compression type~%")
+                                   type)
+                          result)))))))
         (option '(#\c "cache") #t #f
                 (lambda (opt name arg result)
                   (alist-cons 'cache arg result)))
@@ -203,11 +217,6 @@ compression disabled~%"))
     (public-key-file . ,%public-key-file)
     (private-key-file . ,%private-key-file)
 
-    ;; Default to fast & low compression.
-    (compression . ,(if (zlib-available?)
-                        %default-gzip-compression
-                        %no-compression))
-
     ;; Default number of workers when caching is enabled.
     (workers . ,(current-processor-count))
 
@@ -235,29 +244,40 @@ compression disabled~%"))
 (define base64-encode-string
   (compose base64-encode string->utf8))
 
+(define* (store-item->recutils store-item
+                               #:key
+                               (nar-path "nar")
+                               (compression %no-compression)
+                               file-size)
+  "Return the 'Compression' and 'URL' fields of the narinfo for STORE-ITEM,
+with COMPRESSION, starting at NAR-PATH."
+  (let ((url (encode-and-join-uri-path
+              `(,@(split-and-decode-uri-path nar-path)
+                ,@(match compression
+                    (($ <compression> 'none)
+                     '())
+                    (($ <compression> type)
+                     (list (symbol->string type))))
+                ,(basename store-item)))))
+    (format #f "URL: ~a~%Compression: ~a~%~@[FileSize: ~a~%~]"
+            url (compression-type compression) file-size)))
+
 (define* (narinfo-string store store-path key
-                         #:key (compression %no-compression)
-                         (nar-path "nar") file-size)
+                         #:key (compressions (list %no-compression))
+                         (nar-path "nar") (file-sizes '()))
   "Generate a narinfo key/value string for STORE-PATH; an exception is raised
 if STORE-PATH is invalid.  Produce a URL that corresponds to COMPRESSION.  The
 narinfo is signed with KEY.  NAR-PATH specifies the prefix for nar URLs.
-Optionally, FILE-SIZE can specify the size in bytes of the compressed NAR; it
-informs the client of how much needs to be downloaded."
+
+Optionally, FILE-SIZES is a list of compression/integer pairs, where the
+integer is size in bytes of the compressed NAR; it informs the client of how
+much needs to be downloaded."
   (let* ((path-info  (query-path-info store store-path))
-         (compression (actual-compression store-path compression))
-         (url        (encode-and-join-uri-path
-                      `(,@(split-and-decode-uri-path nar-path)
-                        ,@(match compression
-                            (($ <compression> 'none)
-                             '())
-                            (($ <compression> type)
-                             (list (symbol->string type))))
-                        ,(basename store-path))))
+         (compressions (actual-compressions store-path compressions))
          (hash       (bytevector->nix-base32-string
                       (path-info-hash path-info)))
          (size       (path-info-nar-size path-info))
-         (file-size  (or file-size
-                         (and (eq? compression %no-compression) size)))
+         (file-sizes `((,%no-compression . ,size) ,@file-sizes))
          (references (string-join
                       (map basename (path-info-references path-info))
                       " "))
@@ -265,17 +285,21 @@ informs the client of how much needs to be downloaded."
          (base-info  (format #f
                              "\
 StorePath: ~a
-URL: ~a
-Compression: ~a
+~{~a~}\
 NarHash: sha256:~a
 NarSize: ~d
-References: ~a~%~a"
-                             store-path url
-                             (compression-type compression)
-                             hash size references
-                             (if file-size
-                                 (format #f "FileSize: ~a~%" file-size)
-                                 "")))
+References: ~a~%"
+                             store-path
+                             (map (lambda (compression)
+                                    (let ((size (assoc-ref file-sizes
+                                                           compression)))
+                                      (store-item->recutils store-path
+                                                            #:file-size size
+                                                            #:nar-path nar-path
+                                                            #:compression
+                                                            compression)))
+                                  compressions)
+                             hash size references))
          ;; Do not render a "Deriver" or "System" line if we are rendering
          ;; info for a derivation.
          (info       (if (not deriver)
@@ -318,7 +342,7 @@ References: ~a~%~a"
                       %nix-cache-info))))
 
 (define* (render-narinfo store request hash
-                         #:key ttl (compression %no-compression)
+                         #:key ttl (compressions (list %no-compression))
                          (nar-path "nar"))
   "Render metadata for the store path corresponding to HASH.  If TTL is true,
 advertise it as the maximum validity period (in seconds) via the
@@ -334,7 +358,7 @@ appropriate duration.  NAR-PATH specifies the prefix for nar URLs."
                 (cut display
                   (narinfo-string store store-path (%private-key)
                                   #:nar-path nar-path
-                                  #:compression compression)
+                                  #:compressions compressions)
                   <>)))))
 
 (define* (nar-cache-file directory item
@@ -350,6 +374,9 @@ appropriate duration.  NAR-PATH specifies the prefix for nar URLs."
                  "/" (basename item)
                  ".narinfo"))
 
+(define (hash-part-mapping-cache-file directory hash)
+  (string-append directory "/hashes/" hash))
+
 (define run-single-baker
   (let ((baking (make-weak-value-hash-table))
         (mutex  (make-mutex)))
@@ -403,8 +430,29 @@ items.  Failing that, we could eventually have to recompute them and return
             +inf.0
             (expiration-time file))))))
 
+(define (hash-part->path* store hash cache)
+  "Like 'hash-part->path' but cached results under CACHE.  This ensures we can
+still map HASH to the corresponding store file name, even if said store item
+vanished from the store in the meantime."
+  (let ((cached (hash-part-mapping-cache-file cache hash)))
+    (catch 'system-error
+      (lambda ()
+        (call-with-input-file cached read-string))
+      (lambda args
+        (if (= ENOENT (system-error-errno args))
+            (match (hash-part->path store hash)
+              ("" "")
+              (result
+               (mkdir-p (dirname cached))
+               (call-with-output-file (string-append cached ".tmp")
+                 (lambda (port)
+                   (display result port)))
+               (rename-file (string-append cached ".tmp") cached)
+               result))
+            (apply throw args))))))
+
 (define* (render-narinfo/cached store request hash
-                                #:key ttl (compression %no-compression)
+                                #:key ttl (compressions (list %no-compression))
                                 (nar-path "nar")
                                 cache pool)
   "Respond to the narinfo request for REQUEST.  If the narinfo is available in
@@ -412,17 +460,22 @@ CACHE, then send it; otherwise, return 404 and \"bake\" that nar and narinfo
 requested using POOL."
   (define (delete-entry narinfo)
     ;; Delete NARINFO and the corresponding nar from CACHE.
-    (let ((nar (string-append (string-drop-right narinfo
-                                                 (string-length ".narinfo"))
-                              ".nar")))
+    (let* ((nar     (string-append (string-drop-right narinfo
+                                                      (string-length ".narinfo"))
+                                   ".nar"))
+           (base    (basename narinfo ".narinfo"))
+           (hash    (string-take base (string-index base #\-)))
+           (mapping (hash-part-mapping-cache-file cache hash)))
       (delete-file* narinfo)
-      (delete-file* nar)))
-
-  (let* ((item        (hash-part->path store hash))
-         (compression (actual-compression item compression))
-         (cached      (and (not (string-null? item))
-                           (narinfo-cache-file cache item
-                                               #:compression compression))))
+      (delete-file* nar)
+      (delete-file* mapping)))
+
+  (let* ((item         (hash-part->path* store hash cache))
+         (compressions (actual-compressions item compressions))
+         (cached       (and (not (string-null? item))
+                            (narinfo-cache-file cache item
+                                                #:compression
+                                                (first compressions)))))
     (cond ((string-null? item)
            (not-found request))
           ((file-exists? cached)
@@ -446,7 +499,7 @@ requested using POOL."
                  ;; (format #t "baking ~s~%" item)
                  (bake-narinfo+nar cache item
                                    #:ttl ttl
-                                   #:compression compression
+                                   #:compressions compressions
                                    #:nar-path nar-path)))
 
              (when ttl
@@ -463,47 +516,75 @@ requested using POOL."
           (else
            (not-found request #:phrase "")))))
 
+(define (compress-nar cache item compression)
+  "Save in directory CACHE the nar for ITEM compressed with COMPRESSION."
+  (define nar
+    (nar-cache-file cache item #:compression compression))
+
+  (mkdir-p (dirname nar))
+  (match (compression-type compression)
+    ('gzip
+     ;; Note: the file port gets closed along with the gzip port.
+     (call-with-gzip-output-port (open-output-file (string-append nar ".tmp"))
+       (lambda (port)
+         (write-file item port))
+       #:level (compression-level compression)
+       #:buffer-size (* 128 1024))
+     (rename-file (string-append nar ".tmp") nar))
+    ('lzip
+     ;; Note: the file port gets closed along with the lzip port.
+     (call-with-lzip-output-port (open-output-file (string-append nar ".tmp"))
+       (lambda (port)
+         (write-file item port))
+       #:level (compression-level compression))
+     (rename-file (string-append nar ".tmp") nar))
+    ('none
+     ;; Cache nars even when compression is disabled so that we can
+     ;; guarantee the TTL (see <https://bugs.gnu.org/28664>.)
+     (with-atomic-file-output nar
+       (lambda (port)
+         (write-file item port))))))
+
 (define* (bake-narinfo+nar cache item
-                           #:key ttl (compression %no-compression)
+                           #:key ttl (compressions (list %no-compression))
                            (nar-path "/nar"))
   "Write the narinfo and nar for ITEM to CACHE."
-  (let* ((compression (actual-compression item compression))
-         (nar         (nar-cache-file cache item
-                                      #:compression compression))
-         (narinfo     (narinfo-cache-file cache item
-                                          #:compression compression)))
-
-    (mkdir-p (dirname nar))
-    (match (compression-type compression)
-      ('gzip
-       ;; Note: the file port gets closed along with the gzip port.
-       (call-with-gzip-output-port (open-output-file (string-append nar ".tmp"))
-         (lambda (port)
-           (write-file item port))
-         #:level (compression-level compression)
-         #:buffer-size (* 128 1024))
-       (rename-file (string-append nar ".tmp") nar))
-      ('none
-       ;; Cache nars even when compression is disabled so that we can
-       ;; guarantee the TTL (see <https://bugs.gnu.org/28664>.)
-       (with-atomic-file-output nar
-         (lambda (port)
-           (write-file item port)))))
-
-    (mkdir-p (dirname narinfo))
-    (with-atomic-file-output narinfo
-      (lambda (port)
-        ;; Open a new connection to the store.  We cannot reuse the main
-        ;; thread's connection to the store since we would end up sending
-        ;; stuff concurrently on the same channel.
-        (with-store store
-          (display (narinfo-string store item
-                                   (%private-key)
-                                   #:nar-path nar-path
-                                   #:compression compression
-                                   #:file-size (and=> (stat nar #f)
-                                                      stat:size))
-                   port))))))
+  (define (compressed-nar-size compression)
+    (let* ((nar  (nar-cache-file cache item #:compression compression))
+           (stat (stat nar #f)))
+      (and stat
+           (cons compression (stat:size stat)))))
+
+  (let ((compression (actual-compressions item compressions)))
+
+    (for-each (cut compress-nar cache item <>) compressions)
+
+    (match compressions
+      ((main others ...)
+       (let ((narinfo (narinfo-cache-file cache item
+                                          #:compression main)))
+         (with-atomic-file-output narinfo
+           (lambda (port)
+             ;; Open a new connection to the store.  We cannot reuse the main
+             ;; thread's connection to the store since we would end up sending
+             ;; stuff concurrently on the same channel.
+             (with-store store
+               (let ((sizes (filter-map compressed-nar-size compression)))
+                 (display (narinfo-string store item
+                                          (%private-key)
+                                          #:nar-path nar-path
+                                          #:compressions compressions
+                                          #:file-sizes sizes)
+                          port)))))
+
+         ;; Make narinfo files for OTHERS hard links to NARINFO such that the
+         ;; atime-based cache eviction considers either all the nars or none
+         ;; of them as candidates.
+         (for-each (lambda (other)
+                     (let ((other (narinfo-cache-file cache item
+                                                      #:compression other)))
+                       (link narinfo other)))
+                   others))))))
 
 ;; XXX: Declare the 'X-Nar-Compression' HTTP header, which is in fact for
 ;; internal consumption: it allows us to pass the compression info to
@@ -687,6 +768,9 @@ example: \"/foo/bar\" yields '(\"foo\" \"bar\")."
      (make-gzip-output-port (response-port response)
                             #:level level
                             #:buffer-size (* 64 1024)))
+    (($ <compression> 'lzip level)
+     (make-lzip-output-port (response-port response)
+                            #:level level))
     (($ <compression> 'none)
      (response-port response))
     (#f
@@ -761,12 +845,33 @@ blocking."
   http-write
   (@@ (web server http) http-close))
 
+(define (string->compression-type string)
+  "Return a symbol denoting the compression method expressed by STRING; return
+#f if STRING doesn't match any supported method."
+  (match string
+    ("gzip" (and (zlib-available?) 'gzip))
+    ("lzip" (and (lzlib-available?) 'lzip))
+    (_      #f)))
+
+(define (effective-compression requested-type compressions)
+  "Given the REQUESTED-TYPE for compression and the set of chosen COMPRESSION
+methods, return the applicable compression."
+  (or (find (match-lambda
+              (($ <compression> type)
+               (and (eq? type requested-type)
+                    compression)))
+            compressions)
+      (default-compression requested-type)))
+
 (define* (make-request-handler store
                                #:key
                                cache pool
                                narinfo-ttl
                                (nar-path "nar")
-                               (compression %no-compression))
+                               (compressions (list %no-compression)))
+  (define compression-type?
+    string->compression-type)
+
   (define nar-path?
     (let ((expected (split-and-decode-uri-path nar-path)))
       (cut equal? expected <>)))
@@ -785,19 +890,17 @@ blocking."
            (render-home-page request))
           ;; /<hash>.narinfo
           (((= extract-narinfo-hash (? string? hash)))
-           ;; TODO: Register roots for HASH that will somehow remain for
-           ;; NARINFO-TTL.
            (if cache
                (render-narinfo/cached store request hash
                                       #:cache cache
                                       #:pool pool
                                       #:ttl narinfo-ttl
                                       #:nar-path nar-path
-                                      #:compression compression)
+                                      #:compressions compressions)
                (render-narinfo store request hash
                                #:ttl narinfo-ttl
                                #:nar-path nar-path
-                               #:compression compression)))
+                               #:compressions compressions)))
           ;; /nar/file/NAME/sha256/HASH
           (("file" name "sha256" hash)
            (guard (c ((invalid-base32-character? c)
@@ -815,13 +918,11 @@ blocking."
           ;; is restarted with different compression parameters.
 
           ;; /nar/gzip/<store-item>
-          ((components ... "gzip" store-item)
-           (if (and (nar-path? components) (zlib-available?))
-               (let ((compression (match compression
-                                    (($ <compression> 'gzip)
-                                     compression)
-                                    (_
-                                     %default-gzip-compression))))
+          ((components ... (? compression-type? type) store-item)
+           (if (nar-path? components)
+               (let* ((compression-type (string->compression-type type))
+                      (compression (effective-compression compression-type
+                                                          compressions)))
                  (if cache
                      (render-nar/cached store cache request store-item
                                         #:ttl narinfo-ttl
@@ -845,7 +946,8 @@ blocking."
         (not-found request))))
 
 (define* (run-publish-server socket store
-                             #:key (compression %no-compression)
+                             #:key
+                             (compressions (list %no-compression))
                              (nar-path "nar") narinfo-ttl
                              cache pool)
   (run-server (make-request-handler store
@@ -853,7 +955,7 @@ blocking."
                                     #:pool pool
                                     #:nar-path nar-path
                                     #:narinfo-ttl narinfo-ttl
-                                    #:compression compression)
+                                    #:compressions compressions)
               concurrent-http-server
               `(#:socket ,socket)))
 
@@ -892,7 +994,17 @@ blocking."
            (user    (assoc-ref opts 'user))
            (port    (assoc-ref opts 'port))
            (ttl     (assoc-ref opts 'narinfo-ttl))
-           (compression (assoc-ref opts 'compression))
+           (compressions (match (filter-map (match-lambda
+                                              (('compression . compression)
+                                               compression)
+                                              (_ #f))
+                                            opts)
+                           (()
+                            ;; Default to fast & low compression.
+                            (list (if (zlib-available?)
+                                      %default-gzip-compression
+                                      %no-compression)))
+                           (lst (reverse lst))))
            (address (let ((addr (assoc-ref opts 'address)))
                       (make-socket-address (sockaddr:fam addr)
                                            (sockaddr:addr addr)
@@ -919,10 +1031,17 @@ consider using the '--user' option!~%")))
 
       (parameterize ((%public-key public-key)
                      (%private-key private-key))
-        (format #t (G_ "publishing ~a on ~a, port ~d~%")
-                %store-directory
-                (inet-ntop (sockaddr:fam address) (sockaddr:addr address))
-                (sockaddr:port address))
+        (info (G_ "publishing ~a on ~a, port ~d~%")
+              %store-directory
+              (inet-ntop (sockaddr:fam address) (sockaddr:addr address))
+              (sockaddr:port address))
+
+        (for-each (lambda (compression)
+                    (info (G_ "using '~a' compression method, level ~a~%")
+                          (compression-type compression)
+                          (compression-level compression)))
+                  compressions)
+
         (when repl-port
           (repl:spawn-server (repl:make-tcp-server-socket #:port repl-port)))
 
@@ -936,7 +1055,7 @@ consider using the '--user' option!~%")))
                                                            #:thread-name
                                                            "publish worker"))
                               #:nar-path nar-path
-                              #:compression compression
+                              #:compressions compressions
                               #:narinfo-ttl ttl))))))
 
 ;;; Local Variables:
diff --git a/guix/scripts/substitute.scm b/guix/scripts/substitute.scm
index 135398ba48..dba08edf50 100755
--- a/guix/scripts/substitute.scm
+++ b/guix/scripts/substitute.scm
@@ -42,6 +42,7 @@
   #:use-module (guix progress)
   #:use-module ((guix build syscalls)
                 #:select (set-thread-name))
+  #:autoload   (guix lzlib) (lzlib-available?)
   #:use-module (ice-9 rdelim)
   #:use-module (ice-9 regex)
   #:use-module (ice-9 match)
@@ -66,11 +67,11 @@
 
             narinfo?
             narinfo-path
-            narinfo-uri
+            narinfo-uris
             narinfo-uri-base
-            narinfo-compression
-            narinfo-file-hash
-            narinfo-file-size
+            narinfo-compressions
+            narinfo-file-hashes
+            narinfo-file-sizes
             narinfo-hash
             narinfo-size
             narinfo-references
@@ -280,15 +281,16 @@ failure, return #f and #f."
 
 
 (define-record-type <narinfo>
-  (%make-narinfo path uri uri-base compression file-hash file-size nar-hash nar-size
-                 references deriver system signature contents)
+  (%make-narinfo path uri-base uris compressions file-sizes file-hashes
+                 nar-hash nar-size references deriver system
+                 signature contents)
   narinfo?
   (path         narinfo-path)
-  (uri          narinfo-uri)
-  (uri-base     narinfo-uri-base)        ; URI of the cache it originates from
-  (compression  narinfo-compression)
-  (file-hash    narinfo-file-hash)
-  (file-size    narinfo-file-size)
+  (uri-base     narinfo-uri-base)        ;URI of the cache it originates from
+  (uris         narinfo-uris)            ;list of strings
+  (compressions narinfo-compressions)    ;list of strings
+  (file-sizes   narinfo-file-sizes)      ;list of (integers | #f)
+  (file-hashes  narinfo-file-hashes)
   (nar-hash     narinfo-hash)
   (nar-size     narinfo-size)
   (references   narinfo-references)
@@ -334,17 +336,25 @@ s-expression: ~s~%")
 (define (narinfo-maker str cache-url)
   "Return a narinfo constructor for narinfos originating from CACHE-URL.  STR
 must contain the original contents of a narinfo file."
-  (lambda (path url compression file-hash file-size nar-hash nar-size
-                references deriver system signature)
+  (lambda (path urls compressions file-hashes file-sizes
+                nar-hash nar-size references deriver system
+                signature)
     "Return a new <narinfo> object."
-    (%make-narinfo path
+    (define len (length urls))
+    (%make-narinfo path cache-url
                    ;; Handle the case where URL is a relative URL.
-                   (or (string->uri url)
-                       (string->uri (string-append cache-url "/" url)))
-                   cache-url
-
-                   compression file-hash
-                   (and=> file-size string->number)
+                   (map (lambda (url)
+                          (or (string->uri url)
+                              (string->uri
+                               (string-append cache-url "/" url))))
+                        urls)
+                   compressions
+                   (match file-sizes
+                     (()        (make-list len #f))
+                     ((lst ...) (map string->number lst)))
+                   (match file-hashes
+                     (()        (make-list len #f))
+                     ((lst ...) (map string->number lst)))
                    nar-hash
                    (and=> nar-size string->number)
                    (string-tokenize references)
@@ -360,7 +370,7 @@ must contain the original contents of a narinfo file."
                                  #:optional (acl (current-acl)))
   "Bail out if SIGNATURE, a canonical sexp representing the signature of
 NARINFO, doesn't match HASH, a bytevector containing the hash of NARINFO."
-  (let ((uri (uri->string (narinfo-uri narinfo))))
+  (let ((uri (uri->string (first (narinfo-uris narinfo)))))
     (signature-case (signature hash acl)
       (valid-signature #t)
       (invalid-signature
@@ -387,7 +397,8 @@ No authentication and authorization checks are performed here!"
                    '("StorePath" "URL" "Compression"
                      "FileHash" "FileSize" "NarHash" "NarSize"
                      "References" "Deriver" "System"
-                     "Signature"))))
+                     "Signature")
+                   '("URL" "Compression" "FileSize" "FileHash"))))
 
 (define (narinfo-sha256 narinfo)
   "Return the sha256 hash of NARINFO as a bytevector, or #f if NARINFO lacks a
@@ -414,7 +425,7 @@ No authentication and authorization checks are performed here!"
   (or %allow-unauthenticated-substitutes?
       (let ((hash      (narinfo-sha256 narinfo))
             (signature (narinfo-signature narinfo))
-            (uri       (uri->string (narinfo-uri narinfo))))
+            (uri       (uri->string (first (narinfo-uris narinfo)))))
         (and hash signature
              (signature-case (signature hash acl)
                (valid-signature #t)
@@ -919,9 +930,11 @@ expected by the daemon."
           (length (narinfo-references narinfo)))
   (for-each (cute format #t "~a/~a~%" (%store-prefix) <>)
             (narinfo-references narinfo))
-  (format #t "~a\n~a\n"
-          (or (narinfo-file-size narinfo) 0)
-          (or (narinfo-size narinfo) 0)))
+
+  (let-values (((uri compression file-size) (select-uri narinfo)))
+    (format #t "~a\n~a\n"
+            (or file-size 0)
+            (or (narinfo-size narinfo) 0))))
 
 (define* (process-query command
                         #:key cache-urls acl)
@@ -947,17 +960,73 @@ authorized substitutes."
     (wtf
      (error "unknown `--query' command" wtf))))
 
+(define %compression-methods
+  ;; Known compression methods and a thunk to determine whether they're
+  ;; supported.  See 'decompressed-port' in (guix utils).
+  `(("gzip"  . ,(const #t))
+    ("lzip"  . ,lzlib-available?)
+    ("xz"    . ,(const #t))
+    ("bzip2" . ,(const #t))
+    ("none"  . ,(const #t))))
+
+(define (supported-compression? compression)
+  "Return true if COMPRESSION, a string, denotes a supported compression
+method."
+  (match (assoc-ref %compression-methods compression)
+    (#f         #f)
+    (supported? (supported?))))
+
+(define (compresses-better? compression1 compression2)
+  "Return true if COMPRESSION1 generally compresses better than COMPRESSION2;
+this is a rough approximation."
+  (match compression1
+    ("none" #f)
+    ("gzip" (string=? compression2 "none"))
+    (_      (or (string=? compression2 "none")
+                (string=? compression2 "gzip")))))
+
+(define (select-uri narinfo)
+  "Select the \"best\" URI to download NARINFO's nar, and return three values:
+the URI, its compression method (a string), and the compressed file size."
+  (define choices
+    (filter (match-lambda
+              ((uri compression file-size)
+               (supported-compression? compression)))
+            (zip (narinfo-uris narinfo)
+                 (narinfo-compressions narinfo)
+                 (narinfo-file-sizes narinfo))))
+
+  (define (file-size<? c1 c2)
+    (match c1
+      ((uri1 compression1 (? integer? file-size1))
+       (match c2
+         ((uri2 compression2 (? integer? file-size2))
+          (< file-size1 file-size2))
+         (_ #t)))
+      ((uri compression1 #f)
+       (match c2
+         ((uri2 compression2 _)
+          (compresses-better? compression1 compression2))))
+      (_ #f)))                                    ;we can't tell
+
+  (match (sort choices file-size<?)
+    (((uri compression file-size) _ ...)
+     (values uri compression file-size))))
+
 (define* (process-substitution store-item destination
                                #:key cache-urls acl print-build-trace?)
   "Substitute STORE-ITEM (a store file name) from CACHE-URLS, and write it to
 DESTINATION as a nar file.  Verify the substitute against ACL."
-  (let* ((narinfo (lookup-narinfo cache-urls store-item
-                                  (cut valid-narinfo? <> acl)))
-         (uri     (and=> narinfo narinfo-uri)))
-    (unless uri
-      (leave (G_ "no valid substitute for '~a'~%")
-             store-item))
+  (define narinfo
+    (lookup-narinfo cache-urls store-item
+                    (cut valid-narinfo? <> acl)))
+
+  (unless narinfo
+    (leave (G_ "no valid substitute for '~a'~%")
+           store-item))
 
+  (let-values (((uri compression file-size)
+                (select-uri narinfo)))
     ;; Tell the daemon what the expected hash of the Nar itself is.
     (format #t "~a~%" (narinfo-hash narinfo))
 
@@ -971,9 +1040,8 @@ DESTINATION as a nar file.  Verify the substitute against ACL."
                    ;; DOWNLOAD-SIZE is #f in practice.
                    (fetch uri #:buffered? #f #:timeout? #f))
                   ((progress)
-                   (let* ((comp     (narinfo-compression narinfo))
-                          (dl-size  (or download-size
-                                        (and (equal? comp "none")
+                   (let* ((dl-size  (or download-size
+                                        (and (equal? compression "none")
                                              (narinfo-size narinfo))))
                           (reporter (if print-build-trace?
                                         (progress-reporter/trace
@@ -989,8 +1057,7 @@ DESTINATION as a nar file.  Verify the substitute against ACL."
                    ;; NOTE: This 'progress' port of current process will be
                    ;; closed here, while the child process doing the
                    ;; reporting will close it upon exit.
-                   (decompressed-port (and=> (narinfo-compression narinfo)
-                                             string->symbol)
+                   (decompressed-port (string->symbol compression)
                                       progress)))
       ;; Unpack the Nar at INPUT into DESTINATION.
       (restore-file input destination)
diff --git a/guix/scripts/weather.scm b/guix/scripts/weather.scm
index 78b8674e0c..1701772bc1 100644
--- a/guix/scripts/weather.scm
+++ b/guix/scripts/weather.scm
@@ -175,7 +175,10 @@ about the derivations queued, as is the case with Hydra."
           (requested (length items))
           (missing   (lset-difference string=?
                                       items (map narinfo-path narinfos)))
-          (sizes     (filter-map narinfo-file-size narinfos))
+          (sizes     (append-map (lambda (narinfo)
+                                   (filter integer?
+                                           (narinfo-file-sizes narinfo)))
+                                 narinfos))
           (time      (+ (time-second time)
                         (/ (time-nanosecond time) 1e9))))
       (format #t (G_ "  ~2,1f% substitutes available (~h out of ~h)~%")
diff --git a/guix/self.scm b/guix/self.scm
index 6d7569ec19..69e2381a8c 100644
--- a/guix/self.scm
+++ b/guix/self.scm
@@ -57,6 +57,7 @@
       ("guile-gcrypt"  (ref '(gnu packages gnupg) 'guile-gcrypt))
       ("gnutls"     (ref '(gnu packages tls) 'gnutls))
       ("zlib"       (ref '(gnu packages compression) 'zlib))
+      ("lzlib"      (ref '(gnu packages compression) 'lzlib))
       ("gzip"       (ref '(gnu packages compression) 'gzip))
       ("bzip2"      (ref '(gnu packages compression) 'bzip2))
       ("xz"         (ref '(gnu packages compression) 'xz))
@@ -603,7 +604,21 @@ Info manual."
   (define (wrap daemon)
     (program-file "guix-daemon"
                   #~(begin
+                      ;; Refer to the right 'guix' command for 'guix
+                      ;; substitute' & co.
                       (setenv "GUIX" #$command)
+
+                      ;; Honor the user's settings rather than those hardcoded
+                      ;; in the 'guix-daemon' package.
+                      (unless (getenv "GUIX_STATE_DIRECTORY")
+                        (setenv "GUIX_STATE_DIRECTORY"
+                                #$(string-append %localstatedir "/guix")))
+                      (unless (getenv "GUIX_CONFIGURATION_DIRECTORY")
+                        (setenv "GUIX_CONFIGURATION_DIRECTORY"
+                                #$(string-append %sysconfdir "/guix")))
+                      (unless (getenv "NIX_STORE_DIR")
+                        (setenv "NIX_STORE_DIR" #$%storedir))
+
                       (apply execl #$(file-append daemon "/bin/guix-daemon")
                              "guix-daemon" (cdr (command-line))))))
 
@@ -646,6 +661,7 @@ Info manual."
                         (guile-version (effective-version))
                         (guile-for-build (default-guile))
                         (zlib (specification->package "zlib"))
+                        (lzlib (specification->package "lzlib"))
                         (gzip (specification->package "gzip"))
                         (bzip2 (specification->package "bzip2"))
                         (xz (specification->package "xz"))
@@ -800,6 +816,7 @@ Info manual."
                  #:extra-modules
                  `(((guix config)
                     => ,(make-config.scm #:zlib zlib
+                                         #:lzlib lzlib
                                          #:gzip gzip
                                          #:bzip2 bzip2
                                          #:xz xz
@@ -897,7 +914,7 @@ Info manual."
                                       (variables rest ...))))))
     (variables %localstatedir %storedir %sysconfdir)))
 
-(define* (make-config.scm #:key zlib gzip xz bzip2
+(define* (make-config.scm #:key zlib lzlib gzip xz bzip2
                           (package-name "GNU Guix")
                           (package-version "0")
                           (bug-report-address "bug-guix@gnu.org")
@@ -919,7 +936,7 @@ Info manual."
                                %store-database-directory
                                %config-directory
                                %libz
-                               ;; TODO: %liblz
+                               %liblz
                                %gzip
                                %bzip2
                                %xz))
@@ -966,7 +983,11 @@ Info manual."
 
                    (define %libz
                      #+(and zlib
-                            (file-append zlib "/lib/libz"))))
+                            (file-append zlib "/lib/libz")))
+
+                   (define %liblz
+                     #+(and lzlib
+                            (file-append lzlib "/lib/liblz"))))
 
                ;; Guile 2.0 *requires* the 'define-module' to be at the
                ;; top-level or the 'toplevel-ref' in the resulting .go file are
diff --git a/guix/ssh.scm b/guix/ssh.scm
index 2b286a67b2..9b9baf54ea 100644
--- a/guix/ssh.scm
+++ b/guix/ssh.scm
@@ -33,6 +33,7 @@
   #:use-module (srfi srfi-34)
   #:use-module (srfi srfi-35)
   #:use-module (ice-9 match)
+  #:use-module (ice-9 format)
   #:use-module (ice-9 binary-ports)
   #:export (open-ssh-session
             remote-inferior
diff --git a/guix/store.scm b/guix/store.scm
index 5c6e4e0ca6..8fa16499f8 100644
--- a/guix/store.scm
+++ b/guix/store.scm
@@ -980,7 +980,7 @@ store directory (/gnu/store)."
                     store-path)))
    (lambda (server hash-part)
      "Return the store path whose hash part is HASH-PART (a nix-base32
-string).  Raise an error if no such path exists."
+string).  Return the empty string if no such path exists."
      ;; This RPC is primarily used by Hydra to reply to HTTP GETs of
      ;; /HASH.narinfo.
      (query-path-from-hash-part server hash-part))))
@@ -1211,16 +1211,22 @@ an arbitrary directory layout in the store without creating a derivation."
       "Build THINGS, a list of store items which may be either '.drv' files or
 outputs, and return when the worker is done building them.  Elements of THINGS
 that are not derivations can only be substituted and not built locally.
-Return #t on success."
-      (parameterize ((current-store-protocol-version
-                      (store-connection-version store)))
-        (if (>= (store-connection-minor-version store) 15)
-            (build store things mode)
-            (if (= mode (build-mode normal))
-                (build/old store things)
-                (raise (condition (&store-protocol-error
-                                   (message "unsupported build mode")
-                                   (status  1))))))))))
+Alternately, an element of THING can be a derivation/output name pair, in
+which case the daemon will attempt to substitute just the requested output of
+the derivation.  Return #t on success."
+      (let ((things (map (match-lambda
+                           ((drv . output) (string-append drv "!" output))
+                           (thing thing))
+                         things)))
+        (parameterize ((current-store-protocol-version
+                        (store-connection-version store)))
+          (if (>= (store-connection-minor-version store) 15)
+              (build store things mode)
+              (if (= mode (build-mode normal))
+                  (build/old store things)
+                  (raise (condition (&store-protocol-error
+                                     (message "unsupported build mode")
+                                     (status  1)))))))))))
 
 (define-operation (add-temp-root (store-path path))
   "Make PATH a temporary root for the duration of the current session.
diff --git a/guix/tests.scm b/guix/tests.scm
index 35ebf8464d..66d60e964e 100644
--- a/guix/tests.scm
+++ b/guix/tests.scm
@@ -33,6 +33,7 @@
   #:use-module (web uri)
   #:export (open-connection-for-tests
             with-external-store
+            %seed
             random-text
             random-bytevector
             file=?
diff --git a/guix/ui.scm b/guix/ui.scm
index 529401eea8..0b4fe144b6 100644
--- a/guix/ui.scm
+++ b/guix/ui.scm
@@ -32,6 +32,7 @@
 (define-module (guix ui)
   #:use-module (guix i18n)
   #:use-module (guix colors)
+  #:use-module (guix diagnostics)
   #:use-module (guix gexp)
   #:use-module (guix sets)
   #:use-module (guix utils)
@@ -70,10 +71,14 @@
   #:use-module (texinfo)
   #:use-module (texinfo plain-text)
   #:use-module (texinfo string-utils)
-  #:re-export (G_ N_ P_)                          ;backward compatibility
-  #:export (report-error
-            display-hint
-            leave
+
+  ;; Re-exports for backward compatibility.
+  #:re-export (G_ N_ P_                           ;now in (guix i18n)
+
+               warning info report-error leave    ;now in (guix diagnostics)
+               location->string
+               guix-warning-port program-name)
+  #:export (display-hint
             make-user-module
             load*
             warn-about-load-error
@@ -93,7 +98,6 @@
             read/eval
             read/eval-package-expression
             check-available-space
-            location->string
             fill-paragraph
             %text-width
             texi->plain-text
@@ -115,10 +119,6 @@
             delete-generation*
             run-guix-command
             run-guix
-            program-name
-            guix-warning-port
-            warning
-            info
             guix-main))
 
 ;;; Commentary:
@@ -127,124 +127,6 @@
 ;;;
 ;;; Code:
 
-(define-syntax highlight-argument
-  (lambda (s)
-    "Given FMT and ARG, expand ARG to a call that highlights it, provided FMT
-is a trivial format string."
-    (define (trivial-format-string? fmt)
-      (define len
-        (string-length fmt))
-
-      (let loop ((start 0))
-        (or (>= (+ 1 start) len)
-            (let ((tilde (string-index fmt #\~ start)))
-              (or (not tilde)
-                  (case (string-ref fmt (+ tilde 1))
-                    ((#\a #\A #\%) (loop (+ tilde 2)))
-                    (else          #f)))))))
-
-    ;; Be conservative: limit format argument highlighting to cases where the
-    ;; format string contains nothing but ~a escapes.  If it contained ~s
-    ;; escapes, this strategy wouldn't work.
-    (syntax-case s ()
-      ((_ "~a~%" arg)                          ;don't highlight whole messages
-       #'arg)
-      ((_ fmt arg)
-       (trivial-format-string? (syntax->datum #'fmt))
-       #'(%highlight-argument arg))
-      ((_ fmt arg)
-       #'arg))))
-
-(define* (%highlight-argument arg #:optional (port (guix-warning-port)))
-  "Highlight ARG, a format string argument, if PORT supports colors."
-  (cond ((string? arg)
-         (highlight arg port))
-        ((symbol? arg)
-         (highlight (symbol->string arg) port))
-        (else arg)))
-
-(define-syntax define-diagnostic
-  (syntax-rules ()
-    "Create a diagnostic macro (i.e., NAME), which will prepend PREFIX to all
-messages."
-    ((_ name (G_ prefix) colors)
-     (define-syntax name
-       (lambda (x)
-         (syntax-case x ()
-           ((name location (underscore fmt) args (... ...))
-            (and (string? (syntax->datum #'fmt))
-                 (free-identifier=? #'underscore #'G_))
-            #'(begin
-                (print-diagnostic-prefix prefix location
-                                         #:colors colors)
-                (format (guix-warning-port) (gettext fmt %gettext-domain)
-                        (highlight-argument fmt args) (... ...))))
-           ((name location (N-underscore singular plural n)
-                  args (... ...))
-            (and (string? (syntax->datum #'singular))
-                 (string? (syntax->datum #'plural))
-                 (free-identifier=? #'N-underscore #'N_))
-            #'(begin
-                (print-diagnostic-prefix prefix location
-                                         #:colors colors)
-                (format (guix-warning-port)
-                        (ngettext singular plural n %gettext-domain)
-                        (highlight-argument singular args) (... ...))))
-           ((name (underscore fmt) args (... ...))
-            (free-identifier=? #'underscore #'G_)
-            #'(name #f (underscore fmt) args (... ...)))
-           ((name (N-underscore singular plural n)
-                  args (... ...))
-            (free-identifier=? #'N-underscore #'N_)
-            #'(name #f (N-underscore singular plural n)
-                    args (... ...)))))))))
-
-;; XXX: This doesn't work well for right-to-left languages.
-;; TRANSLATORS: The goal is to emit "warning:" followed by a short phrase;
-;; "~a" is a placeholder for that phrase.
-(define-diagnostic warning (G_ "warning: ") %warning-color) ;emit a warning
-(define-diagnostic info (G_ "") %info-color)
-(define-diagnostic report-error (G_ "error: ") %error-color)
-
-(define-syntax-rule (leave args ...)
-  "Emit an error message and exit."
-  (begin
-    (report-error args ...)
-    (exit 1)))
-
-(define %warning-color (color BOLD MAGENTA))
-(define %info-color (color BOLD))
-(define %error-color (color BOLD RED))
-(define %hint-color (color BOLD CYAN))
-
-(define* (print-diagnostic-prefix prefix #:optional location
-                                  #:key (colors (color)))
-  "Print PREFIX as a diagnostic line prefix."
-  (define color?
-    (color-output? (guix-warning-port)))
-
-  (define location-color
-    (if color?
-        (cut colorize-string <> (color BOLD))
-        identity))
-
-  (define prefix-color
-    (if color?
-        (lambda (prefix)
-          (colorize-string prefix colors))
-        identity))
-
-  (let ((prefix (if (string-null? prefix)
-                    prefix
-                    (gettext prefix %gettext-domain))))
-    (if location
-        (format (guix-warning-port) "~a: ~a"
-                (location-color (location->string location))
-                (prefix-color prefix))
-        (format (guix-warning-port) "~:[~*~;guix ~a: ~]~a"
-                (program-name) (program-name)
-                (prefix-color prefix)))))
-
 (define (print-unbound-variable-error port key args default-printer)
   ;; Print unbound variable errors more nicely, and in the right language.
   (match args
@@ -393,6 +275,8 @@ VARIABLE and return it, or #f if none was found."
                   (('gnu _ ...) head)             ;must be that one
                   (_ (loop next (cons head suggestions) visited)))))))))))
 
+(define %hint-color (color BOLD CYAN))
+
 (define* (display-hint message #:optional (port (current-error-port)))
   "Display MESSAGE, a l10n message possibly containing Texinfo markup, to
 PORT."
@@ -1192,13 +1076,6 @@ replacement if PORT is not Unicode-capable."
       (lambda ()
         body ...)))))
 
-(define (location->string loc)
-  "Return a human-friendly, GNU-standard representation of LOC."
-  (match loc
-    (#f (G_ "<unknown location>"))
-    (($ <location> file line column)
-     (format #f "~a:~a:~a" file line column))))
-
 (define* (fill-paragraph str width #:optional (column 0))
   "Fill STR such that each line contains at most WIDTH characters, assuming
 that the first character is at COLUMN.
@@ -1720,10 +1597,6 @@ Run COMMAND with ARGS.\n"))
                                  string<?))
   (show-bug-report-information))
 
-(define program-name
-  ;; Name of the command-line program currently executing, or #f.
-  (make-parameter #f))
-
 (define (run-guix-command command . args)
   "Run COMMAND with the given ARGS.  Report an error when COMMAND is not
 found."
@@ -1783,9 +1656,6 @@ and signal handling has already been set up."
             (string->symbol command)
             args))))
 
-(define guix-warning-port
-  (make-parameter (current-warning-port)))
-
 (define (guix-main arg0 . args)
   (initialize-guix)
   (apply run-guix args))
diff --git a/guix/utils.scm b/guix/utils.scm
index ed1a418cca..709cdf9353 100644
--- a/guix/utils.scm
+++ b/guix/utils.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013, 2014, 2015 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2014 Ian Denhardt <ian@zenhack.net>
@@ -169,6 +169,17 @@ buffered data is lost."
               (close-port out)
               (loop in (cons child pids)))))))))
 
+(define (lzip-port proc port . args)
+  "Return the lzip port produced by calling PROC (a symbol) on PORT and ARGS.
+Raise an error if lzlib support is missing."
+  (let* ((lzlib       (false-if-exception (resolve-interface '(guix lzlib))))
+         (supported?  (and lzlib
+                           ((module-ref lzlib 'lzlib-available?)))))
+    (if supported?
+        (let ((make-port (module-ref lzlib proc)))
+          (values (make-port port) '()))
+        (error "lzip compression not supported" lzlib))))
+
 (define (decompressed-port compression input)
   "Return an input port where INPUT is decompressed according to COMPRESSION,
 a symbol such as 'xz."
@@ -177,17 +188,21 @@ a symbol such as 'xz."
     ('bzip2        (filtered-port `(,%bzip2 "-dc") input))
     ('xz           (filtered-port `(,%xz "-dc") input))
     ('gzip         (filtered-port `(,%gzip "-dc") input))
-    (else          (error "unsupported compression scheme" compression))))
+    ('lzip         (values (lzip-port 'make-lzip-input-port input)
+                           '()))
+    (_             (error "unsupported compression scheme" compression))))
 
 (define (compressed-port compression input)
-  "Return an input port where INPUT is decompressed according to COMPRESSION,
+  "Return an input port where INPUT is compressed according to COMPRESSION,
 a symbol such as 'xz."
   (match compression
     ((or #f 'none) (values input '()))
     ('bzip2        (filtered-port `(,%bzip2 "-c") input))
     ('xz           (filtered-port `(,%xz "-c") input))
     ('gzip         (filtered-port `(,%gzip "-c") input))
-    (else          (error "unsupported compression scheme" compression))))
+    ('lzip         (values (lzip-port 'make-lzip-input-port/compressed input)
+                           '()))
+    (_             (error "unsupported compression scheme" compression))))
 
 (define (call-with-decompressed-port compression port proc)
   "Call PROC with a wrapper around PORT, a file port, that decompresses data
@@ -244,7 +259,9 @@ program--e.g., '(\"--fast\")."
     ('bzip2        (filtered-output-port `(,%bzip2 "-c" ,@options) output))
     ('xz           (filtered-output-port `(,%xz "-c" ,@options) output))
     ('gzip         (filtered-output-port `(,%gzip "-c" ,@options) output))
-    (else          (error "unsupported compression scheme" compression))))
+    ('lzip         (values (lzip-port 'make-lzip-output-port output)
+                           '()))
+    (_             (error "unsupported compression scheme" compression))))
 
 (define* (call-with-compressed-output-port compression port proc
                                            #:key (options '()))
diff --git a/nix/libstore/build.cc b/nix/libstore/build.cc
index 06bc7601b9..fe7bf79069 100644
--- a/nix/libstore/build.cc
+++ b/nix/libstore/build.cc
@@ -2348,7 +2348,7 @@ PathSet parseReferenceSpecifiers(const Derivation & drv, string attr)
         else if (drv.outputs.find(*i) != drv.outputs.end())
             result.insert(drv.outputs.find(*i)->second.path);
         else throw BuildError(
-            format("derivation contains an illegal reference specifier `%1%'")
+            format("derivation contains an invalid reference specifier `%1%'")
             % *i);
     }
     return result;
diff --git a/nix/libstore/globals.cc b/nix/libstore/globals.cc
index 69f6d06563..6df20e7a52 100644
--- a/nix/libstore/globals.cc
+++ b/nix/libstore/globals.cc
@@ -196,7 +196,7 @@ string Settings::pack()
         if (i->first.find('\n') != string::npos ||
             i->first.find('=') != string::npos ||
             i->second.find('\n') != string::npos)
-            throw Error("illegal option name/value");
+            throw Error("invalid option name/value");
         s += i->first; s += '='; s += i->second; s += '\n';
     }
     return s;
diff --git a/nix/libstore/store-api.cc b/nix/libstore/store-api.cc
index 709d17ea21..0de0b6b298 100644
--- a/nix/libstore/store-api.cc
+++ b/nix/libstore/store-api.cc
@@ -61,7 +61,7 @@ void checkStoreName(const string & name)
     /* Disallow names starting with a dot for possible security
        reasons (e.g., "." and ".."). */
     if (string(name, 0, 1) == ".")
-        throw Error(format("illegal name: `%1%'") % name);
+        throw Error(format("invalid name: `%1%'") % name);
     foreach (string::const_iterator, i, name)
         if (!((*i >= 'A' && *i <= 'Z') ||
               (*i >= 'a' && *i <= 'z') ||
diff --git a/tests/crate.scm b/tests/crate.scm
index a1dcfd5e52..a4a328d507 100644
--- a/tests/crate.scm
+++ b/tests/crate.scm
@@ -89,9 +89,9 @@
                      ('base32
                       (? string? hash)))))
          ('build-system 'cargo-build-system)
-         ('inputs
+         ('arguments
           ('quasiquote
-           (("rust-bar" ('unquote 'rust-bar) "src"))))
+           (('#:cargo-inputs (("rust-bar" ('unquote rust-bar)))))))
          ('home-page "http://example.com")
          ('synopsis "summary")
          ('description "summary")
diff --git a/tests/derivations.scm b/tests/derivations.scm
index dbb5b584eb..c421d094a4 100644
--- a/tests/derivations.scm
+++ b/tests/derivations.scm
@@ -787,6 +787,28 @@
       (build-derivations store (list drv))
       #f)))
 
+(test-assert "build-derivations with specific output"
+  (with-store store
+    (let* ((content (random-text))                ;contents of the output
+           (drv     (build-expression->derivation
+                     store "substitute-me"
+                     `(begin ,content (exit 1))   ;would fail
+                     #:outputs '("out" "one" "two")
+                     #:guile-for-build
+                     (package-derivation store %bootstrap-guile)))
+           (out     (derivation->output-path drv)))
+      (with-derivation-substitute drv content
+        (set-build-options store #:use-substitutes? #t
+                           #:substitute-urls (%test-substitute-urls))
+        (and (has-substitutes? store out)
+
+             ;; Ask for nothing but the "out" output of DRV.
+             (build-derivations store `((,drv . "out")))
+
+             (valid-path? store out)
+             (equal? (pk 'x content) (pk 'y (call-with-input-file out get-string-all)))
+             )))))
+
 (test-assert "build-expression->derivation and derivation-prerequisites-to-build"
   (let ((drv (build-expression->derivation %store "fail" #f)))
     ;; The only direct dependency is (%guile-for-build) and it's already
diff --git a/tests/guix-package.sh b/tests/guix-package.sh
index 767c3f8a66..79d6ec65e4 100644
--- a/tests/guix-package.sh
+++ b/tests/guix-package.sh
@@ -280,6 +280,20 @@ export GUIX_PACKAGE_PATH
 guix package -A emacs-foo-bar | grep 42
 guix package -i emacs-foo-bar@42 -n
 
+# Make sure GUIX_PACKAGE_PATH/'-L' takes precedence in case of duplicate packages.
+cat > "$module_dir/bar.scm"<<EOF
+(define-module (bar)
+  #:use-module (guix packages))
+
+(define-public hello
+  (package (inherit (@@ (gnu packages base) hello))
+    (synopsis "an overridden version of GNU hello")))
+EOF
+
+guix package -i hello -n 2>&1 | grep choosing.*bar.scm
+( unset GUIX_PACKAGE_PATH; \
+  guix package -i hello -n -L "$module_dir" 2>&1 | grep choosing.*bar.scm )
+
 # Make sure patches that live under $GUIX_PACKAGE_PATH are found.
 cat > "$module_dir/emacs.patch"<<EOF
 This is a fake patch.
diff --git a/tests/hackage.scm b/tests/hackage.scm
index e17851a213..38a5825af7 100644
--- a/tests/hackage.scm
+++ b/tests/hackage.scm
@@ -155,78 +155,142 @@ library
 
 (test-begin "hackage")
 
-(define* (eval-test-with-cabal test-cabal #:key (cabal-environment '()))
-  (mock
-   ((guix import hackage) hackage-fetch
-    (lambda (name-version)
-      (call-with-input-string test-cabal
-        read-cabal)))
-   (match (hackage->guix-package "foo" #:cabal-environment cabal-environment)
-     (('package
-        ('name "ghc-foo")
-        ('version "1.0.0")
-        ('source
-         ('origin
-           ('method 'url-fetch)
-           ('uri ('string-append
-                  "https://hackage.haskell.org/package/foo/foo-"
-                  'version
-                  ".tar.gz"))
-           ('sha256
-            ('base32
-             (? string? hash)))))
-        ('build-system 'haskell-build-system)
-        ('inputs
-         ('quasiquote
-          (("ghc-http" ('unquote 'ghc-http))
-           ("ghc-mtl" ('unquote 'ghc-mtl)))))
-        ('home-page "http://test.org")
-        ('synopsis (? string?))
-        ('description (? string?))
-        ('license 'bsd-3))
-      #t)
-     (x
-      (pk 'fail x #f)))))
+(define-syntax-rule (define-package-matcher name pattern)
+  (define* (name obj)
+    (match obj
+      (pattern #t)
+      (x       (pk 'fail x #f)))))
+
+(define-package-matcher match-ghc-foo
+  ('package
+    ('name "ghc-foo")
+    ('version "1.0.0")
+    ('source
+     ('origin
+       ('method 'url-fetch)
+       ('uri ('string-append
+              "https://hackage.haskell.org/package/foo/foo-"
+              'version
+              ".tar.gz"))
+       ('sha256
+        ('base32
+         (? string? hash)))))
+    ('build-system 'haskell-build-system)
+    ('inputs
+     ('quasiquote
+      (("ghc-http" ('unquote 'ghc-http)))))
+    ('home-page "http://test.org")
+    ('synopsis (? string?))
+    ('description (? string?))
+    ('license 'bsd-3)))
+
+(define* (eval-test-with-cabal test-cabal matcher #:key (cabal-environment '()))
+  (define port (open-input-string test-cabal))
+  (matcher (hackage->guix-package "foo" #:port port #:cabal-environment cabal-environment)))
 
 (test-assert "hackage->guix-package test 1"
-  (eval-test-with-cabal test-cabal-1))
+  (eval-test-with-cabal test-cabal-1 match-ghc-foo))
 
 (test-assert "hackage->guix-package test 2"
-  (eval-test-with-cabal test-cabal-2))
+  (eval-test-with-cabal test-cabal-2 match-ghc-foo))
 
 (test-assert "hackage->guix-package test 3"
-  (eval-test-with-cabal test-cabal-3
+  (eval-test-with-cabal test-cabal-3 match-ghc-foo
                         #:cabal-environment '(("impl" . "ghc-7.8"))))
 
 (test-assert "hackage->guix-package test 4"
-  (eval-test-with-cabal test-cabal-4
+  (eval-test-with-cabal test-cabal-4 match-ghc-foo
                         #:cabal-environment '(("impl" . "ghc-7.8"))))
 
 (test-assert "hackage->guix-package test 5"
-  (eval-test-with-cabal test-cabal-5
+  (eval-test-with-cabal test-cabal-5 match-ghc-foo
                         #:cabal-environment '(("impl" . "ghc-7.8"))))
 
+(define-package-matcher match-ghc-foo-6
+  ('package
+    ('name "ghc-foo")
+    ('version "1.0.0")
+    ('source
+     ('origin
+       ('method 'url-fetch)
+       ('uri ('string-append
+              "https://hackage.haskell.org/package/foo/foo-"
+              'version
+              ".tar.gz"))
+       ('sha256
+        ('base32
+         (? string? hash)))))
+    ('build-system 'haskell-build-system)
+    ('inputs
+     ('quasiquote
+      (("ghc-b" ('unquote 'ghc-b))
+       ("ghc-http" ('unquote 'ghc-http)))))
+    ('native-inputs
+     ('quasiquote
+      (("ghc-haskell-gi" ('unquote 'ghc-haskell-gi)))))
+    ('home-page "http://test.org")
+    ('synopsis (? string?))
+    ('description (? string?))
+    ('license 'bsd-3)))
+
 (test-assert "hackage->guix-package test 6"
-  (eval-test-with-cabal test-cabal-6
-                        #:cabal-environment '(("impl" . "ghc-7.8"))))
+  (eval-test-with-cabal test-cabal-6 match-ghc-foo-6))
+
+;; Check multi-line layouted description
+(define test-cabal-multiline-layout
+  "name: foo
+version: 1.0.0
+homepage: http://test.org
+synopsis: synopsis
+description:   first line
+               second line
+license: BSD3
+executable cabal
+  build-depends:
+    HTTP       >= 4000.2.5 && < 4000.3,
+    mtl        >= 2.0      && < 3
+")
+
+(test-assert "hackage->guix-package test multiline desc (layout)"
+  (eval-test-with-cabal test-cabal-multiline-layout match-ghc-foo))
+
+;; Check multi-line braced description
+(define test-cabal-multiline-braced
+  "name: foo
+version: 1.0.0
+homepage: http://test.org
+synopsis: synopsis
+description: {
+first line
+second line
+}
+license: BSD3
+executable cabal
+  build-depends:
+    HTTP       >= 4000.2.5 && < 4000.3,
+    mtl        >= 2.0      && < 3
+")
+
+(test-assert "hackage->guix-package test multiline desc (braced)"
+  (eval-test-with-cabal test-cabal-multiline-braced match-ghc-foo))
 
 (test-assert "read-cabal test 1"
   (match (call-with-input-string test-read-cabal-1 read-cabal)
     ((("name" ("test-me"))
       ('section 'library
-               (('if ('flag "base4point8")
-                    (("build-depends" ("base >= 4.8 && < 5")))
-                    (('if ('flag "base4")
-                         (("build-depends" ("base >= 4 && < 4.8")))
-                         (('if ('flag "base3")
-                              (("build-depends" ("base >= 3 && < 4")))
-                              (("build-depends" ("base < 3"))))))))
-                ('if ('or ('flag "base4point8")
-                          ('and ('flag "base4") ('flag "base3")))
-                    (("build-depends" ("random")))
-                    ())
-                ("build-depends" ("containers"))
-                ("exposed-modules" ("Test.QuickCheck.Exception")))))
+                (('if ('flag "base4point8")
+                      (("build-depends" ("base >= 4.8 && < 5")))
+                      (('if ('flag "base4")
+                            (("build-depends" ("base >= 4 && < 4.8")))
+                            (('if ('flag "base3")
+                                  (("build-depends" ("base >= 3 && < 4")))
+                                  (("build-depends" ("base < 3"))))))))
+                 ('if ('or ('flag "base4point8")
+                           ('and ('flag "base4") ('flag "base3")))
+                      (("build-depends" ("random")))
+                      ())
+                 ("build-depends" ("containers"))
+                 ("exposed-modules" ("Test.QuickCheck.Exception")))))
      #t)
     (x (pk 'fail x #f))))
 
diff --git a/tests/lzlib.scm b/tests/lzlib.scm
index cf53a9417d..543622bb45 100644
--- a/tests/lzlib.scm
+++ b/tests/lzlib.scm
@@ -108,4 +108,14 @@
 (test-assert* "Bytevector of size relative to Lzip internal buffers (1MiB+1)"
   (compress-and-decompress (random-bytevector (1+ (* 1024 1024)))))
 
+(test-assert "make-lzip-input-port/compressed"
+  (let* ((len        (pk 'len (+ 10 (random 4000 %seed))))
+         (data       (random-bytevector len))
+         (compressed (make-lzip-input-port/compressed
+                      (open-bytevector-input-port data)))
+         (result     (call-with-lzip-input-port compressed
+                                                get-bytevector-all)))
+    (pk (bytevector-length result) (bytevector-length data))
+    (bytevector=? result data)))
+
 (test-end)
diff --git a/tests/print.scm b/tests/print.scm
index 305807c1d1..d4b2cca93f 100644
--- a/tests/print.scm
+++ b/tests/print.scm
@@ -24,9 +24,31 @@
   #:use-module (guix licenses)
   #:use-module (srfi srfi-64))
 
+(define-syntax-rule (define-with-source object source expr)
+  (begin
+    (define object expr)
+    (define source 'expr)))
+
 (test-begin "print")
 
-(define pkg
+(define-with-source pkg pkg-source
+  (package
+    (name "test")
+    (version "1.2.3")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "file:///tmp/test-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "070pwb7brdcn1mfvplkd56vjc7lbz4iznzkqvfsakvgbv68k71ah"))))
+    (build-system gnu-build-system)
+    (home-page "http://gnu.org")
+    (synopsis "Dummy")
+    (description "This is a dummy package.")
+    (license gpl3+)))
+
+(define-with-source pkg-with-inputs pkg-with-inputs-source
   (package
     (name "test")
     (version "1.2.3")
@@ -38,27 +60,19 @@
                (base32
                 "070pwb7brdcn1mfvplkd56vjc7lbz4iznzkqvfsakvgbv68k71ah"))))
     (build-system gnu-build-system)
+    (inputs `(("coreutils" ,(@ (gnu packages base) coreutils))
+              ("glibc" ,(@ (gnu packages base) glibc) "debug")))
     (home-page "http://gnu.org")
     (synopsis "Dummy")
     (description "This is a dummy package.")
     (license gpl3+)))
 
 (test-equal "simple package"
-  (package->code pkg)
-  '(package
-     (name "test")
-     (version "1.2.3")
-     (source (origin
-               (method url-fetch)
-               (uri (string-append "file:///tmp/test-"
-                                   version ".tar.gz"))
-               (sha256
-                (base32
-                 "070pwb7brdcn1mfvplkd56vjc7lbz4iznzkqvfsakvgbv68k71ah"))))
-     (build-system gnu-build-system)
-     (home-page "http://gnu.org")
-     (synopsis "Dummy")
-     (description "This is a dummy package.")
-     (license gpl3+)))
+  pkg-source
+  (package->code pkg))
+
+(test-equal "package with inputs"
+  pkg-with-inputs-source
+  (package->code pkg-with-inputs))
 
 (test-end "print")
diff --git a/tests/publish.scm b/tests/publish.scm
index 097ac036e0..64a8ff3cae 100644
--- a/tests/publish.scm
+++ b/tests/publish.scm
@@ -36,6 +36,7 @@
   #:use-module (gcrypt pk-crypto)
   #:use-module ((guix pki) #:select (%public-key-file %private-key-file))
   #:use-module (guix zlib)
+  #:use-module (guix lzlib)
   #:use-module (web uri)
   #:use-module (web client)
   #:use-module (web response)
@@ -137,17 +138,17 @@
                   "StorePath: ~a
 URL: nar/~a
 Compression: none
+FileSize: ~a
 NarHash: sha256:~a
 NarSize: ~d
-References: ~a
-FileSize: ~a~%"
+References: ~a~%"
                   %item
                   (basename %item)
+                  (path-info-nar-size info)
                   (bytevector->nix-base32-string
                    (path-info-hash info))
                   (path-info-nar-size info)
-                  (basename (first (path-info-references info)))
-                  (path-info-nar-size info)))
+                  (basename (first (path-info-references info)))))
          (signature (base64-encode
                      (string->utf8
                       (canonical-sexp->string
@@ -169,15 +170,15 @@ FileSize: ~a~%"
                   "StorePath: ~a
 URL: nar/~a
 Compression: none
+FileSize: ~a
 NarHash: sha256:~a
 NarSize: ~d
-References: ~%\
-FileSize: ~a~%"
+References: ~%"
                   item
                   (uri-encode (basename item))
+                  (path-info-nar-size info)
                   (bytevector->nix-base32-string
                    (path-info-hash info))
-                  (path-info-nar-size info)
                   (path-info-nar-size info)))
          (signature (base64-encode
                      (string->utf8
@@ -229,6 +230,19 @@ FileSize: ~a~%"
                (string-append "/nar/gzip/" (basename %item))))))
     (get-bytevector-n nar (bytevector-length %gzip-magic-bytes))))
 
+(unless (lzlib-available?)
+  (test-skip 1))
+(test-equal "/nar/lzip/*"
+  "bar"
+  (call-with-temporary-output-file
+   (lambda (temp port)
+     (let ((nar (http-get-port
+                 (publish-uri
+                  (string-append "/nar/lzip/" (basename %item))))))
+       (call-with-lzip-input-port nar
+         (cut restore-file <> temp)))
+     (call-with-input-file temp read-string))))
+
 (unless (zlib-available?)
   (test-skip 1))
 (test-equal "/*.narinfo with compression"
@@ -251,6 +265,28 @@ FileSize: ~a~%"
                   (_ #f)))
               (recutils->alist body)))))
 
+(unless (lzlib-available?)
+  (test-skip 1))
+(test-equal "/*.narinfo with lzip compression"
+  `(("StorePath" . ,%item)
+    ("URL" . ,(string-append "nar/lzip/" (basename %item)))
+    ("Compression" . "lzip"))
+  (let ((thread (with-separate-output-ports
+                 (call-with-new-thread
+                  (lambda ()
+                    (guix-publish "--port=6790" "-Clzip"))))))
+    (wait-until-ready 6790)
+    (let* ((url  (string-append "http://localhost:6790/"
+                                (store-path-hash-part %item) ".narinfo"))
+           (body (http-get-port url)))
+      (filter (lambda (item)
+                (match item
+                  (("Compression" . _) #t)
+                  (("StorePath" . _)  #t)
+                  (("URL" . _) #t)
+                  (_ #f)))
+              (recutils->alist body)))))
+
 (unless (zlib-available?)
   (test-skip 1))
 (test-equal "/*.narinfo for a compressed file"
@@ -265,6 +301,35 @@ FileSize: ~a~%"
     (list (assoc-ref info "Compression")
           (dirname (assoc-ref info "URL")))))
 
+(unless (and (zlib-available?) (lzlib-available?))
+  (test-skip 1))
+(test-equal "/*.narinfo with lzip + gzip"
+  `((("StorePath" . ,%item)
+     ("URL" . ,(string-append "nar/gzip/" (basename %item)))
+     ("Compression" . "gzip")
+     ("URL" . ,(string-append "nar/lzip/" (basename %item)))
+     ("Compression" . "lzip"))
+    200
+    200)
+  (call-with-temporary-directory
+   (lambda (cache)
+     (let ((thread (with-separate-output-ports
+                    (call-with-new-thread
+                     (lambda ()
+                       (guix-publish "--port=6793" "-Cgzip:2" "-Clzip:2"))))))
+       (wait-until-ready 6793)
+       (let* ((base "http://localhost:6793/")
+              (part (store-path-hash-part %item))
+              (url  (string-append base part ".narinfo"))
+              (body (http-get-port url)))
+         (list (take (recutils->alist body) 5)
+               (response-code
+                (http-get (string-append base "nar/gzip/"
+                                         (basename %item))))
+               (response-code
+                (http-get (string-append base "nar/lzip/"
+                                         (basename %item))))))))))
+
 (test-equal "custom nar path"
   ;; Serve nars at /foo/bar/chbouib instead of /nar.
   (list `(("StorePath" . ,%item)
@@ -405,6 +470,52 @@ FileSize: ~a~%"
                          (stat:size (stat nar)))
                       (response-code uncompressed)))))))))
 
+(unless (and (zlib-available?) (lzlib-available?))
+  (test-skip 1))
+(test-equal "with cache, lzip + gzip"
+  '(200 200 404)
+  (call-with-temporary-directory
+   (lambda (cache)
+     (let ((thread (with-separate-output-ports
+                    (call-with-new-thread
+                     (lambda ()
+                       (guix-publish "--port=6794" "-Cgzip:2" "-Clzip:2"
+                                     (string-append "--cache=" cache)))))))
+       (wait-until-ready 6794)
+       (let* ((base     "http://localhost:6794/")
+              (part     (store-path-hash-part %item))
+              (url      (string-append base part ".narinfo"))
+              (nar-url  (cute string-append "nar/" <> "/"
+                              (basename %item)))
+              (cached   (cute string-append cache "/" <> "/"
+                              (basename %item) ".narinfo"))
+              (nar      (cute string-append cache "/" <> "/"
+                              (basename %item) ".nar"))
+              (response (http-get url)))
+         (wait-for-file (cached "gzip"))
+         (let* ((body         (http-get-port url))
+                (narinfo      (recutils->alist body))
+                (uncompressed (string-append base "nar/"
+                                             (basename %item))))
+           (and (file-exists? (nar "gzip"))
+                (file-exists? (nar "lzip"))
+                (equal? (take (pk 'narinfo/gzip+lzip narinfo) 7)
+                        `(("StorePath" . ,%item)
+                          ("URL" . ,(nar-url "gzip"))
+                          ("Compression" . "gzip")
+                          ("FileSize" . ,(number->string
+                                          (stat:size (stat (nar "gzip")))))
+                          ("URL" . ,(nar-url "lzip"))
+                          ("Compression" . "lzip")
+                          ("FileSize" . ,(number->string
+                                          (stat:size (stat (nar "lzip")))))))
+                (list (response-code
+                       (http-get (string-append base (nar-url "gzip"))))
+                      (response-code
+                       (http-get (string-append base (nar-url "lzip"))))
+                      (response-code
+                       (http-get uncompressed))))))))))
+
 (unless (zlib-available?)
   (test-skip 1))
 (let ((item (add-text-to-store %store "fake-compressed-thing.tar.gz"
@@ -469,6 +580,35 @@ FileSize: ~a~%"
                          (assoc-ref narinfo "FileSize"))
                         (response-code compressed))))))))))
 
+(test-equal "with cache, vanishing item"         ;<https://bugs.gnu.org/33897>
+  200
+  (call-with-temporary-directory
+   (lambda (cache)
+     (let ((thread (with-separate-output-ports
+                    (call-with-new-thread
+                     (lambda ()
+                       (guix-publish "--port=6795"
+                                     (string-append "--cache=" cache)))))))
+       (wait-until-ready 6795)
+
+       ;; Make sure that, even if ITEM disappears, we're still able to fetch
+       ;; it.
+       (let* ((base     "http://localhost:6795/")
+              (item     (add-text-to-store %store "random" (random-text)))
+              (part     (store-path-hash-part item))
+              (url      (string-append base part ".narinfo"))
+              (cached   (string-append cache
+                                       (if (zlib-available?)
+                                           "/gzip/" "/none/")
+                                       (basename item)
+                                       ".narinfo"))
+              (response (http-get url)))
+         (and (= 404 (response-code response))
+              (wait-for-file cached)
+              (begin
+                (delete-paths %store (list item))
+                (response-code (pk 'response (http-get url))))))))))
+
 (test-equal "/log/NAME"
   `(200 #t application/x-bzip2)
   (let ((drv (run-with-store %store
diff --git a/tests/store.scm b/tests/store.scm
index df66feaebb..518750d26a 100644
--- a/tests/store.scm
+++ b/tests/store.scm
@@ -599,6 +599,26 @@
              (valid-path? s o)
              (equal? c (call-with-input-file o get-string-all)))))))
 
+(test-assert "substitute + build-things with specific output"
+  (with-store s
+    (let* ((c   (random-text))                    ;contents of the output
+           (d   (build-expression->derivation
+                 s "substitute-me" `(begin ,c (exit 1)) ;would fail
+                 #:outputs '("out" "one" "two")
+                 #:guile-for-build
+                 (package-derivation s %bootstrap-guile (%current-system))))
+           (o   (derivation->output-path d)))
+      (with-derivation-substitute d c
+        (set-build-options s #:use-substitutes? #t
+                           #:substitute-urls (%test-substitute-urls))
+        (and (has-substitutes? s o)
+
+             ;; Ask for nothing but the "out" output of D.
+             (build-things s `((,(derivation-file-name d) . "out")))
+
+             (valid-path? s o)
+             (equal? c (call-with-input-file o get-string-all)))))))
+
 (test-assert "substitute, corrupt output hash"
   ;; Tweak the substituter into installing a substitute whose hash doesn't
   ;; match the one announced in the narinfo.  The daemon must notice this and
diff --git a/tests/substitute.scm b/tests/substitute.scm
index f4f2e9512d..ff2be662be 100644
--- a/tests/substitute.scm
+++ b/tests/substitute.scm
@@ -28,8 +28,10 @@
   #:use-module (guix base32)
   #:use-module ((guix store) #:select (%store-prefix))
   #:use-module ((guix ui) #:select (guix-warning-port))
+  #:use-module ((guix utils) #:select (call-with-compressed-output-port))
+  #:use-module ((guix lzlib) #:select (lzlib-available?))
   #:use-module ((guix build utils)
-                #:select (mkdir-p delete-file-recursively))
+                #:select (mkdir-p delete-file-recursively dump-port))
   #:use-module (guix tests http)
   #:use-module (rnrs bytevectors)
   #:use-module (rnrs io ports)
@@ -475,6 +477,53 @@ System: mips64el-linux\n")
                                       "/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-foo")
                        "substitute-retrieved"))))
 
+(test-equal "substitute, narinfo with several URLs"
+  "Substitutable data."
+  (let ((narinfo (string-append "StorePath: " (%store-prefix)
+                                "/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-foo
+URL: example.nar.gz
+Compression: gzip
+URL: example.nar.lz
+Compression: lzip
+URL: example.nar
+Compression: none
+NarHash: sha256:" (bytevector->nix-base32-string
+                   (sha256 (string->utf8 "Substitutable data."))) "
+NarSize: 42
+References: bar baz
+Deriver: " (%store-prefix) "/foo.drv
+System: mips64el-linux\n")))
+    (with-narinfo (string-append narinfo "Signature: "
+                                 (signature-field narinfo))
+      (dynamic-wind
+        (const #t)
+        (lambda ()
+          (define (compress input output compression)
+            (call-with-output-file output
+              (lambda (port)
+                (call-with-compressed-output-port compression port
+                  (lambda (port)
+                    (call-with-input-file input
+                      (lambda (input)
+                        (dump-port input port))))))))
+
+          (let ((nar (string-append %main-substitute-directory
+                                    "/example.nar")))
+            (compress nar (string-append nar ".gz") 'gzip)
+            (when (lzlib-available?)
+              (compress nar (string-append nar ".lz") 'lzip)))
+
+          (parameterize ((substitute-urls
+                          (list (string-append "file://"
+                                               %main-substitute-directory))))
+            (guix-substitute "--substitute"
+                             (string-append (%store-prefix)
+                                            "/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-foo")
+                             "substitute-retrieved"))
+          (call-with-input-file "substitute-retrieved" get-string-all))
+        (lambda ()
+          (false-if-exception (delete-file "substitute-retrieved")))))))
+
 (test-end "substitute")
 
 ;;; Local Variables:
diff --git a/tests/utils.scm b/tests/utils.scm
index 3015b21b23..44861384ab 100644
--- a/tests/utils.scm
+++ b/tests/utils.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2016 Mathieu Lirzin <mthl@gnu.org>
 ;;;
@@ -23,6 +23,7 @@
   #:use-module (guix utils)
   #:use-module ((guix store) #:select (%store-prefix store-path-package-name))
   #:use-module ((guix search-paths) #:select (string-tokenize*))
+  #:use-module ((guix lzlib) #:select (lzlib-available?))
   #:use-module (srfi srfi-1)
   #:use-module (srfi srfi-11)
   #:use-module (srfi srfi-64)
@@ -174,30 +175,47 @@
       (any (compose (negate zero?) cdr waitpid)
            pids))))
 
-(test-assert "compressed-port, decompressed-port, non-file"
-  (let ((data (call-with-input-file (search-path %load-path "guix.scm")
-                get-bytevector-all)))
-    (let*-values (((compressed pids1)
-                   (compressed-port 'xz (open-bytevector-input-port data)))
-                  ((decompressed pids2)
-                   (decompressed-port 'xz compressed)))
-      (and (every (compose zero? cdr waitpid)
-                  (append pids1 pids2))
-           (equal? (get-bytevector-all decompressed) data)))))
-
-(false-if-exception (delete-file temp-file))
-(test-assert "compressed-output-port + decompressed-port"
-  (let* ((file (search-path %load-path "guix/derivations.scm"))
-         (data (call-with-input-file file get-bytevector-all))
-         (port (open-file temp-file "w0b")))
-    (call-with-compressed-output-port 'xz port
-      (lambda (compressed)
-        (put-bytevector compressed data)))
-    (close-port port)
-
-    (bytevector=? data
-                  (call-with-decompressed-port 'xz (open-file temp-file "r0b")
-                    get-bytevector-all))))
+(define (test-compression/decompression method run?)
+  "Test METHOD, a symbol such as 'gzip.  Call RUN? to determine whether to
+skip these tests."
+  (unless (run?) (test-skip 1))
+  (test-assert (format #f "compressed-port, decompressed-port, non-file [~a]"
+                       method)
+    (let ((data (call-with-input-file (search-path %load-path "guix.scm")
+                  get-bytevector-all)))
+      (let*-values (((compressed pids1)
+                     (compressed-port method (open-bytevector-input-port data)))
+                    ((decompressed pids2)
+                     (decompressed-port method compressed)))
+        (and (every (compose zero? cdr waitpid)
+                    (pk 'pids method (append pids1 pids2)))
+             (let ((result (get-bytevector-all decompressed)))
+               (pk 'len method
+                   (if (bytevector? result)
+                       (bytevector-length result)
+                       result)
+                   (bytevector-length data))
+               (equal? result data))))))
+
+  (false-if-exception (delete-file temp-file))
+  (unless (run?) (test-skip 1))
+  (test-assert (format #f "compressed-output-port + decompressed-port [~a]"
+                       method)
+    (let* ((file (search-path %load-path "guix/derivations.scm"))
+           (data (call-with-input-file file get-bytevector-all))
+           (port (open-file temp-file "w0b")))
+      (call-with-compressed-output-port method port
+        (lambda (compressed)
+          (put-bytevector compressed data)))
+      (close-port port)
+
+      (bytevector=? data
+                    (call-with-decompressed-port method (open-file temp-file "r0b")
+                      get-bytevector-all)))))
+
+(for-each test-compression/decompression
+          '(gzip xz lzip)
+          (list (const #t) (const #t) lzlib-available?))
 
 ;; This is actually in (guix store).
 (test-equal "store-path-package-name"