Merge branch 'master' into core-updates

91 files changed, 4373 insertions, 959 deletions

diff --git a/Makefile.am b/Makefile.am
index 324674a60e..af6870cf67 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -86,6 +86,8 @@ MODULES =					\
   guix/derivations.scm				\
   guix/grafts.scm				\
   guix/inferior.scm				\
+  guix/describe.scm				\
+  guix/channels.scm				\
   guix/gnu-maintenance.scm			\
   guix/self.scm					\
   guix/upstream.scm				\
diff --git a/NEWS b/NEWS
index ae8a8cbca0..891eb9e57a 100644
--- a/NEWS
+++ b/NEWS
@@ -3,6 +3,7 @@
 #+STARTUP: content hidestars
 
 Copyright © 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
+Copyright © 2016, 2017, 2018 Ricardo Wurmus <rekado@elephly.net>
 
   Copying and distribution of this file, with or without modification,
   are permitted in any medium without royalty provided the copyright
@@ -10,6 +11,16 @@ Copyright © 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
 
 Please send Guix bug reports to bug-guix@gnu.org.
 
+* Changes since 0.15.0
+
+** Package management
+
+*** ‘guix import pypi’ has a new ‘--recursive’ option
+*** ‘guix import hackage’ has a new ‘--recursive’ option
+*** ‘guix import stackage’ has a new ‘--recursive’ option
+The short option for ‘--lts-version’ is now ‘-l’ (used to be ‘-r’).
+
+
 * Changes in 0.15.0 (since 0.14.0)
 
 ** Package management
diff --git a/build-aux/compile-as-derivation.scm b/build-aux/compile-as-derivation.scm
index 59a84b1415..d945a8c79c 100644
--- a/build-aux/compile-as-derivation.scm
+++ b/build-aux/compile-as-derivation.scm
@@ -20,13 +20,20 @@
 
 (use-modules (srfi srfi-26))
 
-;; Add ~/.config/guix/latest to the search path.
-(add-to-load-path
- (and=> (or (getenv "XDG_CONFIG_HOME")
-            (and=> (getenv "HOME")
-                   (cut string-append <> "/.config")))
-        (cute string-append <> "/guix/current/share/guile/site/"
-              (effective-version))))
+;; Add ~/.config/guix/current to the search path.
+(eval-when (expand load eval)
+  (and=> (or (getenv "XDG_CONFIG_HOME")
+             (and=> (getenv "HOME")
+                    (cut string-append <> "/.config/guix/current")))
+         (lambda (current)
+           (set! %load-path
+             (cons (string-append current "/share/guile/site/"
+                                  (effective-version))
+                   %load-path))
+           (set! %load-compiled-path
+             (cons (string-append current "/lib/guile/" (effective-version)
+                                  "/site-ccache")
+                   %load-compiled-path)))))
 
 (use-modules (guix) (guix ui)
              (guix git-download)
diff --git a/build-aux/update-NEWS.scm b/build-aux/update-NEWS.scm
index 2e8f68c9a8..a9dffef1d2 100644
--- a/build-aux/update-NEWS.scm
+++ b/build-aux/update-NEWS.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2017 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2017, 2018 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -128,11 +128,10 @@ paragraph."
 (define (main . args)
   (match args
     ((news-file data-directory)
-     ;; Don't browse things listed in the user's $GUIX_PACKAGE_PATH.  Here we
-     ;; assume that the last item in (%package-module-path) is the distro
-     ;; directory.
+     ;; Don't browse things listed in the user's $GUIX_PACKAGE_PATH and
+     ;; in external channels.
      (parameterize ((%package-module-path
-                     (list (last (%package-module-path)))))
+                     %default-package-module-path))
        (define (package-file version)
          (string-append data-directory "/packages-"
                         version ".txt"))
diff --git a/doc/guix.texi b/doc/guix.texi
index d2d278df47..307f915dbb 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -146,17 +146,18 @@ Package Management
 * Packages with Multiple Outputs::  Single source package, multiple outputs.
 * Invoking guix gc::            Running the garbage collector.
 * Invoking guix pull::          Fetching the latest Guix and distribution.
+* Channels::                    Customizing the package collection.
 * Invoking guix pack::          Creating software bundles.
 * Invoking guix archive::       Exporting and importing store files.
 
 Substitutes
 
-* Official Substitute Server::      One particular source of substitutes.
-* Substitute Server Authorization:: How to enable or disable substitutes.
-* Substitute Authentication::       How Guix verifies substitutes.
-* Proxy Settings::                  How to get substitutes via proxy.
-* Substitution Failure::            What happens when substitution fails.
-* On Trusting Binaries::            How can you trust that binary blob?
+* Official Substitute Server::  One particular source of substitutes.
+* Substitute Server Authorization::  How to enable or disable substitutes.
+* Substitute Authentication::   How Guix verifies substitutes.
+* Proxy Settings::              How to get substitutes via proxy.
+* Substitution Failure::        What happens when substitution fails.
+* On Trusting Binaries::        How can you trust that binary blob?
 
 Programming Interface
 
@@ -202,7 +203,7 @@ GNU Distribution
 
 * System Installation::         Installing the whole operating system.
 * System Configuration::        Configuring the operating system.
-* Documentation::                Browsing software user manuals.
+* Documentation::               Browsing software user manuals.
 * Installing Debugging Files::  Feeding the debugger.
 * Security Updates::            Deploying security fixes quickly.
 * Package Modules::             Packages from the programmer's viewpoint.
@@ -264,7 +265,7 @@ Services
 * Audio Services::              The MPD.
 * Virtualization Services::     Virtualization services.
 * Version Control Services::    Providing remote access to Git repositories.
-* Game Services::                Game servers.
+* Game Services::               Game servers.
 * Miscellaneous Services::      Other services.
 
 Defining Services
@@ -1694,6 +1695,7 @@ guix package -i emacs-guix
 * Packages with Multiple Outputs::  Single source package, multiple outputs.
 * Invoking guix gc::            Running the garbage collector.
 * Invoking guix pull::          Fetching the latest Guix and distribution.
+* Channels::                    Customizing the package collection.
 * Invoking guix pack::          Creating software bundles.
 * Invoking guix archive::       Exporting and importing store files.
 @end menu
@@ -2276,12 +2278,12 @@ pre-built package binaries, but source tarballs, for instance, which
 also result from derivation builds, can be available as substitutes.
 
 @menu
-* Official Substitute Server::      One particular source of substitutes.
-* Substitute Server Authorization:: How to enable or disable substitutes.
-* Substitute Authentication::       How Guix verifies substitutes.
-* Proxy Settings::                  How to get substitutes via proxy.
-* Substitution Failure::            What happens when substitution fails.
-* On Trusting Binaries::            How can you trust that binary blob?
+* Official Substitute Server::  One particular source of substitutes.
+* Substitute Server Authorization::  How to enable or disable substitutes.
+* Substitute Authentication::   How Guix verifies substitutes.
+* Proxy Settings::              How to get substitutes via proxy.
+* Substitution Failure::        What happens when substitution fails.
+* On Trusting Binaries::        How can you trust that binary blob?
 @end menu
 
 @node Official Substitute Server
@@ -2746,7 +2748,8 @@ the distribution currently available on your local machine.  To update
 that distribution, along with the Guix tools, you must run @command{guix
 pull}: the command downloads the latest Guix source code and package
 descriptions, and deploys it.  Source code is downloaded from a
-@uref{https://git-scm.com, Git} repository.
+@uref{https://git-scm.com, Git} repository, by default the official
+GNU@tie{}Guix repository, though this can be customized.
 
 On completion, @command{guix package} will use packages and package
 versions from this just-retrieved copy of Guix.  Not only that, but all
@@ -2821,20 +2824,23 @@ but it supports the following options:
 Produce verbose output, writing build logs to the standard error output.
 
 @item --url=@var{url}
-Download Guix from the Git repository at @var{url}.
-
-@vindex GUIX_PULL_URL
-By default, the source is taken from its canonical Git repository at
-@code{gnu.org}, for the stable branch of Guix.  To use a different source,
-set the @code{GUIX_PULL_URL} environment variable.
-
-@item --commit=@var{commit}
-Deploy @var{commit}, a valid Git commit ID represented as a hexadecimal
-string.
-
-@item --branch=@var{branch}
-Deploy the tip of @var{branch}, the name of a Git branch available on
-the repository at @var{url}.
+@itemx --commit=@var{commit}
+@itemx --branch=@var{branch}
+Download code from the specified @var{url}, at the given @var{commit} (a valid
+Git commit ID represented as a hexadecimal string), or @var{branch}.
+
+@cindex @file{channels.scm}, configuration file
+@cindex configuration file for channels
+These options are provided for convenience, but you can also specify your
+configuration in the @file{~/.config/guix/channels.scm} file or using the
+@option{--channels} option (see below).
+
+@item --channels=@var{file}
+@itemx -C @var{file}
+Read the list of channels from @var{file} instead of
+@file{~/.config/guix/channels.scm}.  @var{file} must contain Scheme code that
+evaluates to a list of channel objects.  @xref{Channels}, for more
+information.
 
 @item --list-generations[=@var{pattern}]
 @itemx -l [@var{pattern}]
@@ -2848,9 +2854,180 @@ Use the bootstrap Guile to build the latest Guix.  This option is only
 useful to Guix developers.
 @end table
 
+The @dfn{channel} mechanism allows you to instruct @command{guix pull} which
+repository and branch to pull from, as well as @emph{additional} repositories
+containing package modules that should be deployed.  @xref{Channels}, for more
+information.
+
 In addition, @command{guix pull} supports all the common build options
 (@pxref{Common Build Options}).
 
+@node Channels
+@section Channels
+
+@cindex channels
+@cindex @file{channels.scm}, configuration file
+@cindex configuration file for channels
+@cindex @command{guix pull}, configuration file
+@cindex configuration of @command{guix pull}
+Guix and its package collection are updated by running @command{guix pull}
+(@pxref{Invoking guix pull}).  By default @command{guix pull} downloads and
+deploys Guix itself from the official GNU@tie{}Guix repository.  This can be
+customized by defining @dfn{channels} in the
+@file{~/.config/guix/channels.scm} file.  A channel specifies a URL and branch
+of a Git repository to be deployed, and @command{guix pull} can be instructed
+to pull from one or more channels.  In other words, channels can be used to
+@emph{customize} and to @emph{extend} Guix, as we will see below.
+
+@subsection Using a Custom Guix Channel
+
+The channel called @code{guix} specifies where Guix itself---its command-line
+tools as well as its package collection---should be downloaded.  For instance,
+suppose you want to update from your own copy of the Guix repository at
+@code{example.org}, and specifically the @code{super-hacks} branch, you can
+write in @code{~/.config/guix/channels.scm} this specification:
+
+@lisp
+;; Tell 'guix pull' to use my own repo.
+(list (channel
+        (name 'guix)
+        (url "https://example.org/my-guix.git")
+        (branch "super-hacks")))
+@end lisp
+
+@noindent
+From there on, @command{guix pull} will fetch code from the @code{super-hacks}
+branch of the repository at @code{example.org}.
+
+@subsection Specifying Additional Channels
+
+@cindex extending the package collection (channels)
+@cindex personal packages (channels)
+@cindex channels, for personal packages
+You can also specify @emph{additional channels} to pull from.  Let's say you
+have a bunch of custom package variants or personal packages that you think
+would make little sense to contribute to the Guix project, but would like to
+have these packages transparently available to you at the command line.  You
+would first write modules containing those package definitions (@pxref{Package
+Modules}), maintain them in a Git repository, and then you and anyone else can
+use it as an additional channel to get packages from.  Neat, no?
+
+@c What follows stems from discussions at
+@c <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=22629#134> as well as
+@c earlier discussions on guix-devel@gnu.org.
+@quotation Warning
+Before you, dear user, shout---``woow this is @emph{soooo coool}!''---and
+publish your personal channel to the world, we would like to share a few words
+of caution:
+
+@itemize
+@item
+Before publishing a channel, please consider contributing your package
+definitions to Guix proper (@pxref{Contributing}).  Guix as a project is open
+to free software of all sorts, and packages in Guix proper are readily
+available to all Guix users and benefit from the project's quality assurance
+process.
+
+@item
+When you maintain package definitions outside Guix, we, Guix developers,
+consider that @emph{the compatibility burden is on you}.  Remember that
+package modules and package definitions are just Scheme code that uses various
+programming interfaces (APIs).  We want to remain free to change these APIs to
+keep improving Guix, possibly in ways that break your channel.  We never
+change APIs gratuitously, but we will @emph{not} commit to freezing APIs
+either.
+
+@item
+Corollary: if you're using an external channel and that channel breaks, please
+@emph{report the issue to the channel authors}, not to the Guix project.
+@end itemize
+
+You've been warned!  Having said this, we believe external channels are a
+practical way to exert your freedom to augment Guix' package collection and to
+share your improvements, which are basic tenets of
+@uref{https://www.gnu.org/philosophy/free-sw.html, free software}.  Please
+email us at @email{guix-devel@@gnu.org} if you'd like to discuss this.
+@end quotation
+
+Once you have a Git repository containing your own package modules, you can
+write @code{~/.config/guix/channels.scm} to instruct @command{guix pull} to
+pull from your personal channel @emph{in addition} to the default Guix
+channel(s):
+
+@vindex %default-channels
+@lisp
+;; Add my personal packages to those Guix provides.
+(cons (channel
+        (name 'my-personal-packages)
+        (url "https://example.org/personal-packages.git"))
+      %default-channels)
+@end lisp
+
+@noindent
+Note that the snippet above is (as always!) Scheme code; we use @code{cons} to
+add a channel the list of channels that the variable @code{%default-channels}
+is bound to (@pxref{Pairs, @code{cons} and lists,, guile, GNU Guile Reference
+Manual}).  With this file in place, @command{guix pull} builds not only Guix
+but also the package modules from your own repository.  The result in
+@file{~/.config/guix/current} is the union of Guix with your own package
+modules:
+
+@example
+$ guix pull --list-generations
+@dots{}
+Generation 19	Aug 27 2018 16:20:48
+  guix d894ab8
+    repository URL: https://git.savannah.gnu.org/git/guix.git
+    branch: master
+    commit: d894ab8e9bfabcefa6c49d9ba2e834dd5a73a300
+  my-personal-packages dd3df5e
+    repository URL: https://example.org/personal-packages.git
+    branch: master
+    commit: dd3df5e2c8818760a8fc0bd699e55d3b69fef2bb
+  11 new packages: my-gimp, my-emacs-with-cool-features, @dots{}
+  4 packages upgraded: emacs-racket-mode@@0.0.2-2.1b78827, @dots{}
+@end example
+
+@noindent
+The output of @command{guix pull} above shows that Generation@tie{}19 includes
+both Guix and packages from the @code{my-personal-packages} channel.  Among
+the new and upgraded packages that are listed, some like @code{my-gimp} and
+@code{my-emacs-with-cool-features} might come from
+@code{my-personal-packages}, while others come from the Guix default channel.
+
+@subsection Replicating Guix
+
+@cindex pinning, channels
+@cindex replicating Guix
+@cindex reproducibility, of Guix
+The @command{guix pull --list-generations} output above shows precisely which
+commits were used to build this instance of Guix.  We can thus replicate it,
+say, on another machine, by providing a channel specification in
+@file{~/.config/guix/channels.scm} that is ``pinned'' to these commits:
+
+@lisp
+;; Deploy specific commits of my channels of interest.
+(list (channel
+       (name 'guix)
+       (url "https://git.savannah.gnu.org/git/guix.git")
+       (commit "d894ab8e9bfabcefa6c49d9ba2e834dd5a73a300"))
+      (channel
+       (name 'my-personal-packages)
+       (url "https://example.org/personal-packages.git")
+       (branch "dd3df5e2c8818760a8fc0bd699e55d3b69fef2bb")))
+@end lisp
+
+At this point the two machines run the @emph{exact same Guix}, with access to
+the @emph{exact same packages}.  The output of @command{guix build gimp} on
+one machine will be exactly the same, bit for bit, as the output of the same
+command on the other machine.  It also means both machines have access to all
+the source code of Guix and, transitively, to all the source code of every
+package it defines.
+
+This gives you super powers, allowing you to track the provenance of binary
+artifacts with very fine grain, and to reproduce software environments at
+will---some sort of ``meta reproducibility'' capabilities, if you will.
+
 @node Invoking guix pack
 @section Invoking @command{guix pack}
 
@@ -3431,9 +3608,9 @@ more information on how to test package definitions, and
 @ref{Invoking guix lint}, for information on how to check a definition
 for style conformance.
 @vindex GUIX_PACKAGE_PATH
-Lastly, @pxref{Package Modules}, for information
+Lastly, @pxref{Channels}, for information
 on how to extend the distribution by adding your own package definitions
-to @code{GUIX_PACKAGE_PATH}.
+in a ``channel''.
 
 Finally, updating the package definition to a new upstream version
 can be partly automated by the @command{guix refresh} command
@@ -6255,8 +6432,8 @@ and that of Vim.
 
 If you are using a Guix Git checkout (@pxref{Building from Git}), or
 have created your own packages on @code{GUIX_PACKAGE_PATH}
-(@pxref{Defining Packages}), you will be able to edit the package
-recipes. Otherwise, you will be able to examine the read-only recipes
+(@pxref{Package Modules}), you will be able to edit the package
+recipes.  In other cases, you will be able to examine the read-only recipes
 for packages currently in the store.
 
 
@@ -6442,6 +6619,14 @@ package:
 guix import pypi itsdangerous
 @end example
 
+@table @code
+@item --recursive
+@itemx -r
+Traverse the dependency graph of the given upstream package recursively
+and generate package expressions for all those packages that are not yet
+in Guix.
+@end table
+
 @item gem
 @cindex gem
 Import metadata from @uref{https://rubygems.org/,
@@ -6699,9 +6884,14 @@ Specific command-line options are:
 @itemx -t
 Do not include dependencies required only by the test suites.
 @item --lts-version=@var{version}
-@itemx -r @var{version}
+@itemx -l @var{version}
 @var{version} is the desired LTS release version.  If omitted the latest
 release is used.
+@item --recursive
+@itemx -r
+Traverse the dependency graph of the given upstream package recursively
+and generate package expressions for all those packages that are not yet
+in Guix.
 @end table
 
 The command below imports metadata for the @code{HTTP} Haskell package
@@ -8363,7 +8553,7 @@ For information on porting to other architectures or kernels,
 @menu
 * System Installation::         Installing the whole operating system.
 * System Configuration::        Configuring the operating system.
-* Documentation::                Browsing software user manuals.
+* Documentation::               Browsing software user manuals.
 * Installing Debugging Files::  Feeding the debugger.
 * Security Updates::            Deploying security fixes quickly.
 * Package Modules::             Packages from the programmer's viewpoint.
@@ -8402,7 +8592,7 @@ available.
 @menu
 * Limitations::                 What you can expect.
 * Hardware Considerations::     Supported hardware.
-* USB Stick and DVD Installation:: Preparing the installation medium.
+* USB Stick and DVD Installation::  Preparing the installation medium.
 * Preparing for Installation::  Networking, partitioning, etc.
 * Proceeding with the Installation::  The real thing.
 * Installing GuixSD in a VM::   GuixSD playground.
@@ -10083,7 +10273,7 @@ declaration.
 * Audio Services::              The MPD.
 * Virtualization Services::     Virtualization services.
 * Version Control Services::    Providing remote access to Git repositories.
-* Game Services::                Game servers.
+* Game Services::               Game servers.
 * Miscellaneous Services::      Other services.
 @end menu
 
@@ -11450,16 +11640,57 @@ detailed discussion of each configuration field.
 @end deftp
 
 @cindex Tor
-@deffn {Scheme Procedure} tor-service [@var{config-file}] [#:tor @var{tor}]
-Return a service to run the @uref{https://torproject.org, Tor} anonymous
-networking daemon.
+@defvr {Scheme Variable} tor-service-type
+This is the type for a service that runs the @uref{https://torproject.org,
+Tor} anonymous networking daemon.  The service is configured using a
+@code{<tor-configuration>} record.  By default, the Tor daemon runs as the
+@code{tor} unprivileged user, which is a member of the @code{tor} group.
 
-The daemon runs as the @code{tor} unprivileged user.  It is passed
-@var{config-file}, a file-like object, with an additional @code{User tor} line
-and lines for hidden services added via @code{tor-hidden-service}.  Run
-@command{man tor} for information about the configuration file.
+@end defvr
+
+@deffn {Scheme Procedure} tor-service [@var{config-file}] [#:tor @var{tor}]
+This procedure is deprecated and will be removed in a future release.  Return
+a service of the @code{tor-service-type} type.  @var{config-file} and
+@var{tor} have the same meaning as in @code{<tor-configuration>}.
 @end deffn
 
+@deftp {Data Type} tor-configuration
+@table @asis
+@item @code{tor} (default: @code{tor})
+The package that provides the Tor daemon.  This package is expected to provide
+the daemon at @file{bin/tor} relative to its output directory.  The default
+package is the @uref{https://www.torproject.org, Tor Project's}
+implementation.
+
+@item @code{config-file} (default: @code{(plain-file "empty" "")})
+The configuration file to use.  It will be appended to a default configuration
+file, and the final configuration file will be passed to @code{tor} via its
+@code{-f} option.  This may be any ``file-like'' object (@pxref{G-Expressions,
+file-like objects}).  See @code{man tor} for details on the configuration file
+syntax.
+
+@item @code{hidden-services} (default: @code{'()})
+The list of @code{<hidden-service>} records to use.  For any hidden service
+you include in this list, appropriate configuration to enable the hidden
+service will be automatically added to the default configuration file.  You
+may conveniently create @code{<hidden-service>} records using the
+@code{tor-hidden-service} procedure described below.
+
+@item @code{socks-socket-type} (default: @code{'tcp})
+The default socket type that Tor should use for its SOCKS socket.  This must
+be either @code{'tcp} or @code{'unix}.  If it is @code{'tcp}, then by default
+Tor will listen on TCP port 9050 on the loopback interface (i.e., localhost).
+If it is @code{'unix}, then Tor will listen on the UNIX domain socket
+@file{/var/run/tor/socks-sock}, which will be made writable by members of the
+@code{tor} group.
+
+If you want to customize the SOCKS socket in more detail, leave
+@code{socks-socket-type} at its default value of @code{'tcp} and use
+@code{config-file} to override the default by providing your own
+@code{SocksPort} option.
+@end table
+@end deftp
+
 @cindex hidden service
 @deffn {Scheme Procedure} tor-hidden-service @var{name} @var{mapping}
 Define a new Tor @dfn{hidden service} called @var{name} and implementing
@@ -11741,6 +11972,12 @@ Additional authorized keys can be specified @i{via}
 
 Note that this does @emph{not} interfere with the use of
 @file{~/.ssh/authorized_keys}.
+
+@item @code{log-level} (default: @code{'info})
+This is a symbol specifying the logging level: @code{quiet}, @code{fatal},
+@code{error}, @code{info}, @code{verbose}, @code{debug}, etc.  See the man
+page for @file{sshd_config} for the full list of level names.
+
 @end table
 @end deftp
 
@@ -13302,7 +13539,7 @@ Users need to be in the @code{lp} group to access the D-Bus service.
 
 The @code{(gnu services sound)} module provides a service to configure the
 Advanced Linux Sound Architecture (ALSA) system, which making PulseAudio the
-prefered ALSA output driver.
+preferred ALSA output driver.
 
 @deffn {Scheme Variable} alsa-service-type
 This is the type for the @uref{https://alsa-project.org/, Advanced Linux Sound
@@ -17188,7 +17425,7 @@ When true, don't read the hostnames in /etc/hosts.
 
 @item @code{port} (default: @code{53})
 The port to listen on.  Setting this to zero completely disables DNS
-funtion, leaving only DHCP and/or TFTP.
+responses, leaving only DHCP and/or TFTP functions.
 
 @item @code{local-service?} (default: @code{#t})
 Accept DNS queries only from hosts whose address is on a local subnet,
@@ -17216,6 +17453,114 @@ When false, disable negative caching.
 @end table
 @end deftp
 
+@subsubheading ddclient Service
+
+@cindex ddclient
+The ddclient service described below runs the ddclient daemon, which takes
+care of automatically updating DNS entries for service providers such as
+@uref{https://dyn.com/dns/, Dyn}.
+
+The following example show instantiates the service with its default
+configuration:
+
+@example
+(service ddclient-service-type)
+@end example
+
+Note that ddclient needs to access credentials that are stored in a
+@dfn{secret file}, by default @file{/etc/ddclient/secrets} (see
+@code{secret-file} below.)  You are expected to create this file manually, in
+an ``out-of-band'' fashion (you @emph{could} make this file part of the
+service configuration, for instance by using @code{plain-file}, but it will be
+world-readable @i{via} @file{/gnu/store}.)  See the examples in the
+@file{share/ddclient} directory of the @code{ddclient} package.
+
+@c %start of fragment
+
+Available @code{ddclient-configuration} fields are:
+
+@deftypevr {@code{ddclient-configuration} parameter} package ddclient
+The ddclient package.
+
+@end deftypevr
+
+@deftypevr {@code{ddclient-configuration} parameter} integer daemon
+The period after which ddclient will retry to check IP and domain name.
+
+Defaults to @samp{300}.
+
+@end deftypevr
+
+@deftypevr {@code{ddclient-configuration} parameter} boolean syslog
+Use syslog for the output.
+
+Defaults to @samp{#t}.
+
+@end deftypevr
+
+@deftypevr {@code{ddclient-configuration} parameter} string mail
+Mail to user.
+
+Defaults to @samp{"root"}.
+
+@end deftypevr
+
+@deftypevr {@code{ddclient-configuration} parameter} string mail-failure
+Mail failed update to user.
+
+Defaults to @samp{"root"}.
+
+@end deftypevr
+
+@deftypevr {@code{ddclient-configuration} parameter} string pid
+The ddclient PID file.
+
+Defaults to @samp{"/var/run/ddclient/ddclient.pid"}.
+
+@end deftypevr
+
+@deftypevr {@code{ddclient-configuration} parameter} boolean ssl
+Enable SSL support.
+
+Defaults to @samp{#t}.
+
+@end deftypevr
+
+@deftypevr {@code{ddclient-configuration} parameter} string user
+Specifies the user name or ID that is used when running ddclient
+program.
+
+Defaults to @samp{"ddclient"}.
+
+@end deftypevr
+
+@deftypevr {@code{ddclient-configuration} parameter} string group
+Group of the user who will run the ddclient program.
+
+Defaults to @samp{"ddclient"}.
+
+@end deftypevr
+
+@deftypevr {@code{ddclient-configuration} parameter} string secret-file
+Secret file which will be appended to @file{ddclient.conf} file.  This
+file contains credentials for use by ddclient.  You are expected to
+create it manually.
+
+Defaults to @samp{"/etc/ddclient/secrets.conf"}.
+
+@end deftypevr
+
+@deftypevr {@code{ddclient-configuration} parameter} list extra-options
+Extra options will be appended to @file{ddclient.conf} file.
+
+Defaults to @samp{()}.
+
+@end deftypevr
+
+
+@c %end of fragment
+
+
 @node VPN Services
 @subsubsection VPN Services
 @cindex VPN (virtual private network)
@@ -22473,16 +22818,24 @@ name and module name must match.  For instance, the @code{(my-packages
 emacs)} module must be stored in a @file{my-packages/emacs.scm} file
 relative to the load path specified with @option{--load-path} or
 @code{GUIX_PACKAGE_PATH}.  @xref{Modules and the File System,,,
-guile, GNU Guile Reference Manual}, for details.}.  These package definitions
-will not be visible by default.  Users can invoke commands such as
-@command{guix package} and @command{guix build} with the
-@code{-e} option so that they know where to find the package.  Better
-yet, they can use the
-@code{-L} option of these commands to make those modules visible
-(@pxref{Invoking guix build, @code{--load-path}}), or define the
-@code{GUIX_PACKAGE_PATH} environment variable.  This environment
-variable makes it easy to extend or customize the distribution and is
-honored by all the user interfaces.
+guile, GNU Guile Reference Manual}, for details.}.  There are two ways to make
+these package definitions visible to the user interfaces:
+
+@enumerate
+@item
+By adding the directory containing your package modules to the search path
+with the @code{-L} flag of @command{guix package} and other commands
+(@pxref{Common Build Options}), or by setting the @code{GUIX_PACKAGE_PATH}
+environment variable described below.
+
+@item
+By defining a @dfn{channel} and configuring @command{guix pull} so that it
+pulls from it.  A channel is essentially a Git repository containing package
+modules.  @xref{Channels}, for more information on how to define and use
+channels.
+@end enumerate
+
+@code{GUIX_PACKAGE_PATH} works similarly to other search path variables:
 
 @defvr {Environment Variable} GUIX_PACKAGE_PATH
 This is a colon-separated list of directories to search for additional
diff --git a/gnu/build/linux-modules.scm b/gnu/build/linux-modules.scm
index ae141b6f54..2d81175041 100644
--- a/gnu/build/linux-modules.scm
+++ b/gnu/build/linux-modules.scm
@@ -136,7 +136,7 @@ and normalizing it."
 (define (find-module-file directory module)
   "Lookup module NAME under DIRECTORY, and return its absolute file name.
 NAME can be a file name with or without '.ko', or it can be a module name.
-Return #f if it could not be found.
+Raise an error if it could not be found.
 
 Module names can differ from file names in interesting ways; for instance,
 module names usually (always?) use underscores as the inter-word separator,
@@ -162,7 +162,7 @@ whereas file names often, but not always, use hyphens.  Examples:
     ((file)
      file)
     (()
-     #f)
+     (error "kernel module not found" module directory))
     ((_ ...)
      (error "several modules by that name" module directory))))
 
diff --git a/gnu/build/marionette.scm b/gnu/build/marionette.scm
index bb018fc9c1..f94eab5cc0 100644
--- a/gnu/build/marionette.scm
+++ b/gnu/build/marionette.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2018 Chris Marusich <cmmarusich@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -27,6 +28,7 @@
             marionette-eval
             wait-for-file
             wait-for-tcp-port
+            wait-for-unix-socket
             marionette-control
             marionette-screen-text
             wait-for-screen-text
@@ -214,6 +216,29 @@ MARIONETTE.  Raise an error on failure."
     ('failure
      (error "nobody's listening on port" port))))
 
+(define* (wait-for-unix-socket file-name marionette
+                                #:key (timeout 20))
+  "Wait for up to TIMEOUT seconds for FILE-NAME, a Unix domain socket, to
+accept connections in MARIONETTE.  Raise an error on failure."
+  (match (marionette-eval
+          `(begin
+             (let ((sock (socket PF_UNIX SOCK_STREAM 0)))
+               (let loop ((i 0))
+                 (catch 'system-error
+                   (lambda ()
+                     (connect sock AF_UNIX ,file-name)
+                     'success)
+                   (lambda args
+                     (if (< i ,timeout)
+                         (begin
+                           (sleep 1)
+                           (loop (+ 1 i)))
+                         'failure))))))
+          marionette)
+    ('success #t)
+    ('failure
+     (error "nobody's listening on unix domain socket" file-name))))
+
 (define (marionette-control command marionette)
   "Run COMMAND in the QEMU monitor of MARIONETTE.  COMMAND is a string such as
 \"sendkey ctrl-alt-f1\" or \"screendump foo.ppm\" (info \"(qemu-doc)
@@ -222,7 +247,8 @@ pcsys_monitor\")."
     (($ <marionette> _ _ monitor)
      (display command monitor)
      (newline monitor)
-     (wait-for-monitor-prompt monitor))))
+     ;; The "quit" command terminates QEMU immediately, with no output.
+     (unless (string=? command "quit") (wait-for-monitor-prompt monitor)))))
 
 (define* (marionette-screen-text marionette
                                  #:key
diff --git a/gnu/local.mk b/gnu/local.mk
index 806a5f3c2a..21f0482847 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -213,6 +213,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/packages/guile-wm.scm			\
   %D%/packages/gv.scm				\
   %D%/packages/gxmessage.scm			\
+  %D%/packages/hardware.scm			\
   %D%/packages/haskell.scm			\
   %D%/packages/haskell-check.scm		\
   %D%/packages/haskell-crypto.scm		\
@@ -650,6 +651,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/doc++-segfault-fix.patch			\
   %D%/packages/patches/dovecot-trees-support-dovecot-2.3.patch	\
   %D%/packages/patches/doxygen-test.patch			\
+  %D%/packages/patches/dropbear-CVE-2018-15599.patch		\
   %D%/packages/patches/dvd+rw-tools-add-include.patch 		\
   %D%/packages/patches/elfutils-tests-ptrace.patch		\
   %D%/packages/patches/elogind-glibc-2.27.patch			\
@@ -793,6 +795,8 @@ dist_patch_DATA =						\
   %D%/packages/patches/gtkglext-disable-disable-deprecated.patch \
   %D%/packages/patches/gzdoom-search-in-installed-share.patch	\
   %D%/packages/patches/handbrake-pkg-config-path.patch		\
+  %D%/packages/patches/haskell-mode-unused-variables.patch	\
+  %D%/packages/patches/haskell-mode-make-check.patch		\
   %D%/packages/patches/hdf4-architectures.patch 		\
   %D%/packages/patches/hdf4-reproducibility.patch 		\
   %D%/packages/patches/hdf4-shared-fortran.patch 		\
@@ -999,7 +1003,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/ola-readdir-r.patch			\
   %D%/packages/patches/openbabel-fix-crash-on-nwchem-output.patch	\
   %D%/packages/patches/opencascade-oce-glibc-2.26.patch		\
-  %D%/packages/patches/openexr-missing-samples.patch		\
   %D%/packages/patches/openfoam-4.1-cleanup.patch			\
   %D%/packages/patches/openldap-CVE-2017-9287.patch		\
   %D%/packages/patches/openocd-nrf52.patch			\
@@ -1123,6 +1126,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/ruby-concurrent-test-arm.patch		\
   %D%/packages/patches/ruby-rack-ignore-failing-test.patch      \
   %D%/packages/patches/ruby-tzinfo-data-ignore-broken-test.patch\
+  %D%/packages/patches/rust-1.19-mrustc.patch			\
   %D%/packages/patches/rust-bootstrap-stage0-test.patch		\
   %D%/packages/patches/rust-coresimd-doctest.patch		\
   %D%/packages/patches/rxvt-unicode-escape-sequences.patch	\
diff --git a/gnu/packages.scm b/gnu/packages.scm
index 7b954769e9..532297239d 100644
--- a/gnu/packages.scm
+++ b/gnu/packages.scm
@@ -30,6 +30,7 @@
                 #:select ((package-name->name+version
                            . hyphen-separated-name->name+version)))
   #:autoload   (guix profiles) (packages->manifest)
+  #:use-module (guix describe)
   #:use-module (ice-9 vlist)
   #:use-module (ice-9 match)
   #:use-module (srfi srfi-1)
@@ -46,6 +47,7 @@
             %auxiliary-files-path
             %bootstrap-binaries-path
             %package-module-path
+            %default-package-module-path
 
             fold-packages
 
@@ -130,22 +132,31 @@ for system '~a'")
          ("gnu/packages.scm"      gnu/)
          ("guix.scm"))))
 
+(define %default-package-module-path
+  ;; Default search path for package modules.
+  `((,%distro-root-directory . "gnu/packages")))
+
 (define %package-module-path
   ;; Search path for package modules.  Each item must be either a directory
   ;; name or a pair whose car is a directory and whose cdr is a sub-directory
   ;; to narrow the search.
   (let* ((not-colon   (char-set-complement (char-set #\:)))
          (environment (string-tokenize (or (getenv "GUIX_PACKAGE_PATH") "")
-                                       not-colon)))
-    ;; Automatically add items from $GUIX_PACKAGE_PATH to Guile's search path.
-    (for-each (lambda (directory)
-                (set! %load-path (cons directory %load-path))
-                (set! %load-compiled-path
-                      (cons directory %load-compiled-path)))
-              environment)
+                                       not-colon))
+         (channels    (package-path-entries)))
+    ;; Automatically add channels and items from $GUIX_PACKAGE_PATH to Guile's
+    ;; search path.  For historical reasons, $GUIX_PACKAGE_PATH goes to the
+    ;; front; channels go to the back so that they don't override Guix' own
+    ;; modules.
+    (set! %load-path
+      (append environment %load-path channels))
+    (set! %load-compiled-path
+      (append environment %load-compiled-path channels))
 
     (make-parameter
-     (append environment `((,%distro-root-directory . "gnu/packages"))))))
+     (append environment
+             %default-package-module-path
+             channels))))
 
 (define %patch-path
   ;; Define it after '%package-module-path' so that '%load-path' contains user
diff --git a/gnu/packages/admin.scm b/gnu/packages/admin.scm
index c9230c3295..8807ab18b5 100644
--- a/gnu/packages/admin.scm
+++ b/gnu/packages/admin.scm
@@ -963,7 +963,7 @@ system administrator.")
 (define-public sudo
   (package
     (name "sudo")
-    (version "1.8.24")
+    (version "1.8.25")
     (source (origin
               (method url-fetch)
               (uri
@@ -973,7 +973,7 @@ system administrator.")
                                     version ".tar.gz")))
               (sha256
                (base32
-                "1s2v49n905wf3phmdnaa6v1dwck2lrcin0flg85z7klf35x5b25l"))
+                "0hfw6pcwjvv1vvnhb4n1p210306jm4npz99p9cfhbd33yrhhzkwx"))
               (modules '((guix build utils)))
               (snippet
                '(begin
@@ -2750,3 +2750,81 @@ support forum.  It runs with the @code{/exec} command in most IRC clients.")
     (description
      "@code{pscircle} visualizes Linux processes in the form of a radial tree.")
     (license license:gpl2+)))
+
+(define-public python-pyudev
+  (package
+    (name "python-pyudev")
+    (version "0.21.0")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (pypi-uri "pyudev" version))
+        (sha256
+          (base32
+            "0arz0dqp75sszsmgm6vhg92n1lsx91ihddx3m944f4ah0487ljq9"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:tests? #f ; Tests require /sys
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'patch-ctypes-udev
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let ((eudev (assoc-ref inputs "eudev")))
+               (substitute* "src/pyudev/core.py"
+                (("'udev'")
+                 (string-append "'" eudev "/lib/libudev.so'")))
+               (substitute* "src/pyudev/_ctypeslib/utils.py"
+                ;; Use absolute paths instead of keys.
+                (("= find_library") "= "))
+               #t))))))
+    (inputs
+     `(("eudev" ,eudev)))
+    (native-inputs
+     `(("python-docutils" ,python-docutils)
+       ("python-hypothesis" ,python-hypothesis)
+       ("python-mock" ,python-mock)
+       ("python-pytest" ,python-pytest)
+       ("python-sphinx" ,python-sphinx)))
+    (home-page "http://pyudev.readthedocs.org/")
+    (synopsis "Python udev binding")
+    (description "This package provides @code{udev} bindings for Python.")
+    (license license:lgpl2.1)))
+
+(define-public solaar
+  (package
+    (name "solaar")
+    (version "0.9.2")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/pwr/Solaar.git")
+                    (commit version)))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "085mfa13dap3wqik1dqlad0d7kff4rv7j4ljh99c7l8nhczkqgwm"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'fix-prefix-detection
+           (lambda _
+             (substitute* "setup.py"
+              (("'--prefix' in sys\\.argv")
+               "len([x.startswith('--prefix=') for x in sys.argv]) > 0"))
+             #t))
+         (replace 'build
+           (lambda _
+             (invoke "python" "setup.py" "build")))
+         (add-before 'check 'setenv-PATH
+           (lambda _
+             (setenv "PYTHONPATH" (string-append "lib:" (getenv "PYTHONPATH")))
+             #t)))))
+    (propagated-inputs
+     `(("python-pygobject" ,python-pygobject)
+       ("python-pyudev" ,python-pyudev)))
+    (home-page "https://smxi.org/docs/inxi.htm")
+    (synopsis "Linux devices manager for the Logitech Unifying Receiver")
+    (description "This package provides tools to manage clients of the
+Logitech Unifying Receiver.")
+    (license license:gpl2)))
diff --git a/gnu/packages/audio.scm b/gnu/packages/audio.scm
index f7f831918b..e731569ae1 100644
--- a/gnu/packages/audio.scm
+++ b/gnu/packages/audio.scm
@@ -324,7 +324,7 @@ engineers, musicians, soundtrack editors and composers.")
     (build-system gnu-build-system)
     (inputs
      `(("wxwidgets" ,wxwidgets)
-       ("gtk" ,gtk+)
+       ("gtk+" ,gtk+)
        ("alsa-lib" ,alsa-lib)
        ("jack" ,jack-1)
        ("expat" ,expat)
@@ -410,6 +410,15 @@ engineers, musicians, soundtrack editors and composers.")
                (("../lib-src/portmidi/porttime/porttime.h") "porttime.h"))
              (substitute* "src/prefs/MidiIOPrefs.cpp"
                (("../../lib-src/portmidi/pm_common/portmidi.h") "portmidi.h"))
+             #t))
+         (add-after 'install 'wrap-program
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (wrap-program (string-append (assoc-ref outputs "out")
+                                          "/bin/audacity")
+               ;; For GtkFileChooserDialog.
+               `("GSETTINGS_SCHEMA_DIR" =
+                 (,(string-append (assoc-ref inputs "gtk+")
+                                  "/share/glib-2.0/schemas"))))
              #t)))
        ;; The test suite is not "well exercised" according to the developers,
        ;; and fails with various errors.  See
@@ -1740,11 +1749,10 @@ included are the command line utilities @code{send_osc} and @code{dump_osc}.")
             #t)))))
     ;; Required by lilv-0.pc.
     (propagated-inputs
-     `(("serd" ,serd)
+     `(("lv2" ,lv2)
+       ("serd" ,serd)
        ("sord" ,sord)
        ("sratom" ,sratom)))
-    (inputs
-     `(("lv2" ,lv2)))
     (native-inputs
      `(("pkg-config" ,pkg-config)))
     (home-page "https://drobilla.net/software/lilv/")
diff --git a/gnu/packages/backup.scm b/gnu/packages/backup.scm
index b36bb74f6f..bd4a177ecd 100644
--- a/gnu/packages/backup.scm
+++ b/gnu/packages/backup.scm
@@ -67,7 +67,7 @@
 (define-public duplicity
   (package
     (name "duplicity")
-    (version "0.7.18")
+    (version "0.7.18.1")
     (source
      (origin
       (method url-fetch)
@@ -77,7 +77,7 @@
                           version ".tar.gz"))
       (sha256
        (base32
-        "1qlika4l1k1nx8zr657ihcy0yzr1c1cdnjlbs325l5krvc3zbc5b"))))
+        "17c0203y5qz9w8iyhs26l44qf6a1vp26b5ykz1ypdr2kv6g02df9"))))
     (build-system python-build-system)
     (native-inputs
      `(("util-linux" ,util-linux)       ; setsid command, for the tests
@@ -99,21 +99,12 @@
        #:test-target "test"
        #:phases
        (modify-phases %standard-phases
-         (add-before 'build 'patch-source
+         (add-before 'build 'use-store-file-names
            (lambda* (#:key inputs #:allow-other-keys)
-             ;; Embed gpg store name.
              (substitute* "duplicity/gpginterface.py"
                (("self.call = 'gpg'")
                 (string-append "self.call = '" (assoc-ref inputs "gnupg") "/bin/gpg'")))
 
-             ;; This matches up with an unreleased upstream fix, it should be
-             ;; removed when the package is updated.
-             ;; https://bazaar.launchpad.net/~duplicity-team/duplicity/0.8-series/revision/1308
-             (substitute* "duplicity/gpg.py"
-               (("--no-secmem-warning'\\)")
-                "--no-secmem-warning')
-        gnupg.options.extra_args.append('--ignore-mdc-error')"))
-
              (substitute* '("testing/functional/__init__.py"
                             "testing/overrides/bin/lftp")
                (("/bin/sh") (which "sh")))
diff --git a/gnu/packages/bioinformatics.scm b/gnu/packages/bioinformatics.scm
index cb3c4bc1fd..f60fc4c84c 100644
--- a/gnu/packages/bioinformatics.scm
+++ b/gnu/packages/bioinformatics.scm
@@ -11,6 +11,7 @@
 ;;; Copyright © 2017 Arun Isaac <arunisaac@systemreboot.net>
 ;;; Copyright © 2018 Joshua Sierles, Nextjournal <joshua@nextjournal.com>
 ;;; Copyright © 2018 Gábor Boskovits <boskovits@gmail.com>
+;;; Copyright © 2018 Mădălin Ionel Patrașcu <madalinionel.patrascu@mdc-berlin.de>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -3601,7 +3602,7 @@ experiments and provide highly stable thresholds based on reproducibility.")
 (define-public jellyfish
   (package
     (name "jellyfish")
-    (version "2.2.7")
+    (version "2.2.10")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/gmarcais/Jellyfish/"
@@ -3609,7 +3610,7 @@ experiments and provide highly stable thresholds based on reproducibility.")
                                   "/jellyfish-" version ".tar.gz"))
               (sha256
                (base32
-                "1a1iwq9pq54k2m9ypvwl5s0bqfl64gwh9dx5af9i382ajas2016q"))))
+                "1k4pc3fvv6w1km2yph4m5sd78fbxp21d6xyzgmy0gjihzc6mb249"))))
     (build-system gnu-build-system)
     (outputs '("out"      ;for library
                "ruby"     ;for Ruby bindings
@@ -3646,8 +3647,8 @@ DNA sequences.  It outputs its k-mer counts in a binary format, which can be
 translated into a human-readable text format using the @code{jellyfish dump}
 command, or queried for specific k-mers with @code{jellyfish query}.")
     (home-page "http://www.genome.umd.edu/jellyfish.html")
-    ;; From their website: JELLYFISH runs on 64-bit Intel-compatible processors
-    (supported-systems '("x86_64-linux"))
+    ;; JELLYFISH seems to be 64-bit only.
+    (supported-systems '("x86_64-linux" "aarch64-linux" "mips64el-linux"))
     ;; The combined work is published under the GPLv3 or later.  Individual
     ;; files such as lib/jsoncpp.cpp are released under the Expat license.
     (license (list license:gpl3+ license:expat))))
@@ -13458,3 +13459,102 @@ conversions, region filtering, FASTA sequence extraction and more.")
 spliced (back-spliced) sequencing reads, indicative of circular RNA (circRNA)
 in RNA-seq data.")
       (license license:gpl3))))
+
+(define-public python-scanpy
+  (package
+    (name "python-scanpy")
+    (version "1.2.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "scanpy" version))
+       (sha256
+        (base32
+         "1ak7bxms5a0yvf65prppq2g38clkv7c7jnjbnfpkh3xxv7q512jz"))))
+    (build-system python-build-system)
+    (propagated-inputs
+     `(("python-anndata" ,python-anndata)
+       ("python-igraph" ,python-igraph)
+       ("python-numba" ,python-numba)
+       ("python-joblib" ,python-joblib)
+       ("python-natsort" ,python-natsort)
+       ("python-networkx" ,python-networkx)
+       ("python-statsmodels" ,python-statsmodels)
+       ("python-scikit-learn" ,python-scikit-learn)
+       ("python-matplotlib" ,python-matplotlib)
+       ("python-pandas" ,python-pandas)
+       ("python-scipy" ,python-scipy)
+       ("python-seaborn" ,python-seaborn)
+       ("python-h5py" ,python-h5py)
+       ("python-tables" ,python-tables)))
+    (home-page "http://github.com/theislab/scanpy")
+    (synopsis "Single-Cell Analysis in Python.")
+    (description "Scanpy is a scalable toolkit for analyzing single-cell gene
+expression data.  It includes preprocessing, visualization, clustering,
+pseudotime and trajectory inference and differential expression testing.  The
+Python-based implementation efficiently deals with datasets of more than one
+million cells.")
+    (license license:bsd-3)))
+
+(define-public gffcompare
+  (let ((commit "be56ef4349ea3966c12c6397f85e49e047361c41")
+        (revision "1"))
+    (package
+      (name "gffcompare")
+      (version (git-version "0.10.15" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/gpertea/gffcompare/")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "0cp5qpxdhw4mxpya5dld8wi3jk00zyklm6rcri426wydinrnfmkg"))))
+      (build-system gnu-build-system)
+      (arguments
+       `(#:tests? #f                    ; no check target
+         #:phases
+         (modify-phases %standard-phases
+           (delete 'configure)
+           (add-before 'build 'copy-gclib-source
+             (lambda* (#:key inputs #:allow-other-keys)
+               (mkdir "../gclib")
+               (copy-recursively
+                (assoc-ref inputs "gclib-source") "../gclib")
+               #t))
+           (replace 'install
+             (lambda* (#:key outputs #:allow-other-keys)
+               (let ((bin (string-append (assoc-ref outputs "out") "/bin")))
+                 (install-file "gffcompare" bin)
+                 #t))))))
+      (native-inputs
+       `(("gclib-source" ; see 'README.md' of gffcompare
+          ,(let ((commit "54917d0849c1e83cfb057b5f712e5cb6a35d948f")
+                 (revision "1")
+                 (name "gclib")
+                 (version (git-version "0.10.3" revision commit)))
+             (origin
+               (method git-fetch)
+               (uri (git-reference
+                     (url "https://github.com/gpertea/gclib/")
+                     (commit commit)))
+               (file-name (git-file-name name version))
+               (sha256
+                (base32 "0b51lc0b8syrv7186fd7n8f15rwnf264qgfmm2palrwks1px24mr")))))))
+      (home-page "https://github.com/gpertea/gffcompare/")
+      (synopsis "Tool for comparing or classifing transcripts of RNA-Seq")
+      (description
+       "@code{gffcompare} is a tool that can:
+@enumerate
+@item compare and evaluate the accuracy of RNA-Seq transcript assemblers
+(Cufflinks, Stringtie);
+@item collapse (merge) duplicate transcripts from multiple GTF/GFF3 files (e.g.
+resulted from assembly of different samples);
+@item classify transcripts from one or multiple GTF/GFF3 files as they relate to
+reference transcripts provided in a annotation file (also in GTF/GFF3 format).
+@end enumerate")
+      (license
+       (list
+        license:expat                   ;license for gffcompare
+        license:artistic2.0)))))        ;license for gclib
diff --git a/gnu/packages/certs.scm b/gnu/packages/certs.scm
index cb05fb83fc..6af6877423 100644
--- a/gnu/packages/certs.scm
+++ b/gnu/packages/certs.scm
@@ -76,7 +76,7 @@
 (define-public nss-certs
   (package
     (name "nss-certs")
-    (version "3.38")
+    (version "3.39")
     (source (origin
               (method url-fetch)
               (uri (let ((version-with-underscores
@@ -87,7 +87,7 @@
                       "nss-" version ".tar.gz")))
               (sha256
                (base32
-                "0qigcy3d169cf67jzv3rbai0m6dn34vp8h2z696mz4yn10y3sr1c"))))
+                "0jw6qlfl2g47hhx056nvnj6h92bk3sn46hy3ig61a911dzblvrkb"))))
     (build-system gnu-build-system)
     (outputs '("out"))
     (native-inputs
diff --git a/gnu/packages/check.scm b/gnu/packages/check.scm
index ddd532528f..e3edff50a5 100644
--- a/gnu/packages/check.scm
+++ b/gnu/packages/check.scm
@@ -269,7 +269,7 @@ problem, and shows the differences.")
 (define-public cmocka
   (package
     (name "cmocka")
-    (version "1.1.1")
+    (version "1.1.2")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://cmocka.org/files/"
@@ -277,10 +277,10 @@ problem, and shows the differences.")
                                   version ".tar.xz"))
               (sha256
                (base32
-                "1283zi9qf5613g8iadm1fxmjh4rzxqd5np2j3lcpgairf25g8bph"))))
+                "1p9b6ccv939wjsgapn7wx24xw278awsw9h81lm0g4zw257hx276i"))))
     (build-system cmake-build-system)
     (arguments
-     `(#:tests? #f)) ; No test target
+     `(#:tests? #f))                    ; no test target
     (home-page "https://cmocka.org/")
     (synopsis "Unit testing framework for C")
     (description "Cmocka is a unit testing framework for C with support for
diff --git a/gnu/packages/cpp.scm b/gnu/packages/cpp.scm
index 0160e42f6a..d591e6a884 100644
--- a/gnu/packages/cpp.scm
+++ b/gnu/packages/cpp.scm
@@ -236,7 +236,7 @@ as ordering relation.")
     (build-system cmake-build-system)
     (synopsis "JSON parser and printer library for C++")
     (description "JSON for Modern C++ is a C++ JSON library that provides
-intutive syntax and trivial integration.")
+intuitive syntax and trivial integration.")
     (license license:expat)))
 
 (define-public xtl
diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index eb6bf9c38b..016d1b1e41 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -4944,3 +4944,47 @@ developers to generate user interfaces easy to maintain.")
 models.  The methods employed are applicable to virtually any predictive model
 and make comparisons between different methodologies straightforward.")
     (license license:gpl2+)))
+
+(define-public r-infotheo
+  (package
+    (name "r-infotheo")
+    (version "1.2.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (cran-uri "infotheo" version))
+       (sha256
+        (base32
+         "18xacczfq3z3xpy434js4nf3l19lczngzd0lq26wh22pvg1yniwv"))))
+    (build-system r-build-system)
+    (home-page "http://homepage.meyerp.com/software")
+    (synopsis "Information-theoretic measures")
+    (description
+     "This package implements various measures of information theory based on
+several entropy estimators.")
+    (license license:gpl3+)))
+
+(define-public r-abcoptim
+  (package
+    (name "r-abcoptim")
+    (version "0.15.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (cran-uri "ABCoptim" version))
+       (sha256
+        (base32 "1ih0xk88qhsmpvnxf56041wx5sk8as2f4f2gdnpnwdym9mbr9n4b"))))
+    (properties `((upstream-name . "ABCoptim")))
+    (build-system r-build-system)
+    (propagated-inputs `(("r-rcpp" ,r-rcpp)))
+    (home-page "https://github.com/gvegayon/ABCoptim/")
+    (synopsis "Optimization of Artificial Bee Colony algorithm")
+    (description
+     "Artificial Bee Colony (ABC) is one of the most recently defined algorithms by Dervis
+Karaboga in 2005, motivated by the intelligent behavior of honey bees.  It is as
+simple as Particle Swarm Optimization (PSO) and Differential Evolution (DE)
+algorithms, and uses only common control parameters such as colony size and
+maximum cycle number.  The @code{r-abcoptim} implements the Artificial bee
+colony optimization algorithm @url{http://mf.erciyes.edu.tr/abc/pub/tr06_2005.pdf}.
+  This version is a work-in-progress and is written in R code.")
+    (license license:expat)))
diff --git a/gnu/packages/crypto.scm b/gnu/packages/crypto.scm
index ae6150b0ab..e070ef61ac 100644
--- a/gnu/packages/crypto.scm
+++ b/gnu/packages/crypto.scm
@@ -40,6 +40,7 @@
   #:use-module (gnu packages gettext)
   #:use-module (gnu packages gnupg)
   #:use-module (gnu packages image)
+  #:use-module (gnu packages kerberos)
   #:use-module (gnu packages libbsd)
   #:use-module (gnu packages libffi)
   #:use-module (gnu packages linux)
@@ -277,7 +278,7 @@ the wrong hands.")
 (define-public keyutils
   (package
     (name "keyutils")
-    (version "1.5.10")
+    (version "1.5.11")
     (source
      (origin
        (method url-fetch)
@@ -286,9 +287,9 @@ the wrong hands.")
                        version ".tar.bz2"))
        (sha256
         (base32
-         "1dmgjcf7mnwc6h72xkvpaqpzxw8vmlnsmzz0s27pg0giwzm3sp0i"))
+         "1ddig6j5xjyk6g9l2wlqc7k1cgvryxdqbsv3c9rk1p3f42448n0i"))
        (modules '((guix build utils)))
-       ;; Create relative symbolic links instead of absolute ones to /lib/*
+       ;; Create relative symbolic links instead of absolute ones to /lib/*.
        (snippet '(begin
                    (substitute* "Makefile" (("\\$\\(LNS\\) \\$\\(LIBDIR\\)/")
                                             "$(LNS) "))
@@ -306,6 +307,8 @@ the wrong hands.")
                           "MANDIR=/share/man"
                           "SHAREDIR=/share/keyutils")
        #:test-target "test"))
+    (inputs
+     `(("mit-krb5" ,mit-krb5)))
     (home-page "https://people.redhat.com/dhowells/keyutils/")
     (synopsis "Linux key management utilities")
     (description
diff --git a/gnu/packages/dico.scm b/gnu/packages/dico.scm
index b374a9b996..a85987d9b1 100644
--- a/gnu/packages/dico.scm
+++ b/gnu/packages/dico.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2015, 2016 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2016, 2018 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016, 2018 Efraim Flashner <efraim@flashner.co.il>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -37,14 +37,14 @@
 (define-public dico
   (package
     (name "dico")
-    (version "2.5")
+    (version "2.6")
     (source (origin
              (method url-fetch)
              (uri (string-append "mirror://gnu/dico/dico-"
                                  version ".tar.xz"))
              (sha256
               (base32
-               "0szm3z4xvq0pjj8kxl4paq63byamf281kzn1la0cdm5ngavypxxq"))))
+               "0zmi041gv5nd5fmyzgdrgrsy2pvjaq9p8dvvhxwi842hiyng5b7i"))))
     (build-system gnu-build-system)
     (arguments
      '(#:configure-flags (list (string-append "--with-guile-site-dir=" %output
@@ -62,7 +62,7 @@
      `(("m4" ,m4)                                 ;used at run time
        ("pcre" ,pcre)
        ("python" ,python-2)
-       ("guile" ,guile-2.0)
+       ("guile" ,guile-2.2)
        ("gsasl" ,gsasl)
        ("groff" ,groff)
        ("readline" ,readline)
diff --git a/gnu/packages/disk.scm b/gnu/packages/disk.scm
index a095d0cd4f..206f9c71bb 100644
--- a/gnu/packages/disk.scm
+++ b/gnu/packages/disk.scm
@@ -337,14 +337,14 @@ and can dramatically shorten the lifespan of the drive if left unchecked.")
 (define-public gparted
   (package
     (name "gparted")
-    (version "0.31.0")
+    (version "0.32.0")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "mirror://sourceforge/gparted/gparted/gparted-"
                            version "/gparted-" version ".tar.gz"))
        (sha256
-        (base32 "1fh7rpgb4xxdhgyjsirb83zvjfc5mfngb8a1pjbv7r6r6jj4jyrv"))))
+        (base32 "1fjp4c8jc0kjbbih1x1vs9v40d9lncma642kflnmy0bixxnvh7df"))))
     (build-system gnu-build-system)
     (arguments
      `(#:tests? #f                      ; tests require a network connection
diff --git a/gnu/packages/emacs.scm b/gnu/packages/emacs.scm
index 8665356f5c..8f0c564f88 100644
--- a/gnu/packages/emacs.scm
+++ b/gnu/packages/emacs.scm
@@ -646,7 +646,11 @@ only a handful of functions that are not resource-specific.")
                     "https://github.com/haskell/haskell-mode/archive/v"
                     version ".tar.gz"))
               (sha256
-               (base32 "0g6lcjw7lcgavv3yrd8xjcyqgfyjl787y32r1z14amw2f009m78h"))))
+               (base32 "0g6lcjw7lcgavv3yrd8xjcyqgfyjl787y32r1z14amw2f009m78h"))
+              (patches
+               (search-patches ; backport test failure fixes
+                "haskell-mode-unused-variables.patch"
+                "haskell-mode-make-check.patch"))))
     (inputs
      `(("emacs-el-search" ,emacs-el-search) ; for tests
        ("emacs-stream" ,emacs-stream)))     ; for tests
@@ -686,12 +690,11 @@ only a handful of functions that are not resource-specific.")
                               (_ ""))
                             inputs)))
               (substitute* (find-files "." "\\.el") (("/bin/sh") sh))
-              (substitute* "tests/haskell-code-conventions.el"
-                ;; Function name recently changed in "emacs-el-search".
-                (("el-search--search-pattern") "el-search-forward")
-                ;; Don't contact home.
-                (("\\(when \\(>= emacs-major-version 25\\)")
-                 "(require 'el-search) (when nil"))
+              ;; embed filename to fix test failure
+              (let ((file "tests/haskell-cabal-tests.el"))
+                (substitute* file
+                  (("\\(buffer-file-name\\)")
+                   (format #f "(or (buffer-file-name) ~s)" file))))
               #t)))
          (replace
           'install
@@ -1722,6 +1725,32 @@ management tasks from Emacs.  To begin with, run @code{M-x guix-about} or
 @code{M-x guix-help} command.")
     (license license:gpl3+)))
 
+(define-public emacs-build-farm
+  (package
+    (name "emacs-build-farm")
+    (version "0.2")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://gitlab.com/alezost-emacs/build-farm")
+                    (commit "fa7fa54901416fc5c216a5014394cbd73a61efc6")))
+              (file-name (string-append name "-" version "-checkout"))
+              (sha256
+               (base32
+                "1zw3pivma6cv9j7k7qm02jd6wnxmsc1v2mjcssd50im99zzrqflh"))))
+    (build-system emacs-build-system)
+    (propagated-inputs
+     `(("bui" ,emacs-bui)
+       ("magit-popup" ,emacs-magit-popup)))
+    (home-page "https://gitlab.com/alezost-emacs/build-farm")
+    (synopsis "Emacs interface for Hydra and Cuirass build farms")
+    (description
+     "This Emacs package provides an interface for Hydra and
+Cuirass (build farms used by Nix and Guix).  It allows you to look at
+various data related to the build farm projects, jobsets, builds and
+evaluations.  The entry point is @code{M-x build-farm} command.")
+    (license license:gpl3+)))
+
 (define-public emacs-d-mode
   (package
     (name "emacs-d-mode")
@@ -8977,7 +9006,7 @@ continue.")
 (define-public emacs-elisp-refs
   (package
     (name "emacs-elisp-refs")
-    (version "1.2")
+    (version "1.3")
     (source
      (origin
        (method url-fetch)
@@ -8986,14 +9015,15 @@ continue.")
        (file-name (string-append name "-" version ".tar.gz"))
        (sha256
         (base32
-         "0fj6wphwrvbslw46w7wgdk3b4bfr312ygj3lbgr9qw63lpqw26nl"))))
+         "02nzcn3v14n7mp7q32j5r4wdlpsw3zixzh6cf0cdyarfir6dly3p"))))
     (build-system emacs-build-system)
     (propagated-inputs
      `(("emacs-dash" ,emacs-dash)
        ("emacs-f" ,emacs-f)
        ("emacs-list-utils" ,emacs-list-utils)
        ("emacs-loop" ,emacs-loop)
-       ("emacs-s" ,emacs-s)))
+       ("emacs-s" ,emacs-s)
+       ("emacs-shut-up" ,emacs-shut-up)))
     (home-page "https://github.com/Wilfred/elisp-refs")
     (synopsis "Find callers of elisp functions or macros")
     (description "Find references to functions, macros or variables.  Unlike a
@@ -9537,11 +9567,12 @@ duplicate hook and function names further into a single declarative call.")
          "0rf2rnzg82pdqch041yyx3f9ddixffkk9s2ydzg8hwy66sg3385n"))))
     (build-system emacs-build-system)
     (home-page "https://github.com/Malabarba/fancy-narrow/releases")
-    (synopsis "Immitate narrow-to-region with more eye-candy")
-    (description "Unlike narrow-to-region, which completely hides text outside
-the narrowed region, this package simply deemphasizes the text, makes it
-readonly, and makes it unreachable.  This leads to a much more natural
-feeling, where the region stays static (instead of being brutally moved to a
+    (synopsis "Imitate @code{narrow-to-region} with more eye candy")
+    (description
+     "Unlike @code{narrow-to-region}, which completely hides text outside
+the narrowed region, this package simply de-emphasizes the text, makes it
+read-only, and makes it unreachable.  This leads to a much more natural
+feeling where the region stays static (instead of being brutally moved to a
 blank slate) and is clearly highlighted with respect to the rest of the
 buffer.")
     (license license:gpl2+)))
@@ -9633,7 +9664,7 @@ downloading manager for Emacs.")
 (define-public emacs-helpful
   (package
     (name "emacs-helpful")
-    (version "0.1")
+    (version "0.13")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -9642,7 +9673,7 @@ downloading manager for Emacs.")
               (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "16dx566qzrjj0bf43lnw7h1qlvgs94brqplamw8kppp2ylr72qs9"))))
+                "11kj04y1fa3vnw2991cyqf6adz6bb3hlrdkvypjnmpb0s64q64b6"))))
     (build-system emacs-build-system)
     (propagated-inputs
      `(("emacs-elisp-refs" ,emacs-elisp-refs)))
@@ -10027,7 +10058,7 @@ perform regression test for packages that provide font-lock rules.")
       (license license:gpl3+))))
 
 (define-public emacs-racket-mode
-  (let ((commit "add0190d3c9bdad25fee57f8efd0460c9a45c2ec")
+  (let ((commit "92c33487f6c707880ac3f6169e7ea65ddffd1463")
         (revision "1"))
     (package
       (name "emacs-racket-mode")
@@ -10042,7 +10073,7 @@ perform regression test for packages that provide font-lock rules.")
          (file-name (string-append name "-" version "-checkout"))
          (sha256
           (base32
-           "0bf6s4nqjfacij20x9vppdnq8fq1bf53cch6p4g8xqcqri3ms4jw"))))
+           "19q6ym10gj2xdzzcgh3wdbq1xv8cv7nlrhv2b0bjvvdjzhiki472"))))
       (build-system emacs-build-system)
       (arguments
        `(#:include '("\\.el$" "\\.rkt$")))
diff --git a/gnu/packages/emulators.scm b/gnu/packages/emulators.scm
index 141423d7bf..8e68c676ef 100644
--- a/gnu/packages/emulators.scm
+++ b/gnu/packages/emulators.scm
@@ -1055,7 +1055,7 @@ emulation community.  It provides highly accurate emulation.")
 (define-public retroarch
   (package
     (name "retroarch")
-    (version "1.7.3")
+    (version "1.7.4")
     (source
      (origin
        (method url-fetch)
@@ -1063,7 +1063,7 @@ emulation community.  It provides highly accurate emulation.")
                            version ".tar.gz"))
        (file-name (string-append name "-" version ".tar.gz"))
        (sha256
-        (base32 "1si78dbwbsq4i0r42q94nmlpaxdyqch113nxavdprf4vc1224356"))))
+        (base32 "0h6y2hpjg4b470jvn9ghwp0k3a527sbb6xhia17frlm9w9v5028w"))))
     (build-system gnu-build-system)
     (arguments
      '(#:tests? #f                      ; no tests
@@ -1175,7 +1175,7 @@ play them on systems for which they were never designed!")
 (define-public mame
   (package
     (name "mame")
-    (version "0.200")
+    (version "0.201")
     (source
      (origin
        (method git-fetch)
@@ -1185,7 +1185,7 @@ play them on systems for which they were never designed!")
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "0ddw8635hdm21lgpf13k1vhfywy3460rwciv93vrqmpkq2dvpmib"))
+         "00whiig4ld3d4fkl34q48vlf28ygvvp5g7fp0rb5n31ymhl4kajk"))
        (modules '((guix build utils)))
        (snippet
         ;; Remove bundled libraries.
@@ -1211,17 +1211,6 @@ play them on systems for which they were never designed!")
        #:tests? #f                      ;no test in regular release
        #:phases
        (modify-phases %standard-phases
-         ;; Add missing include lines for "fmin" and "ceil" functions.
-         ;; Reported upstream.  Will be fixed in 0.201.
-         (add-after 'unpack 'add-missing-include
-           (lambda _
-             (substitute* "src/devices/cpu/mips/mips3.cpp"
-               (("#include \"ps2vu.h\"" all)
-                (string-append all "\n#include <cmath>")))
-             (substitute* "src/devices/cpu/mips/ps2vif1.cpp"
-               (("#include \"ps2vif1.h\"" all)
-                (string-append all "\n#include <cmath>")))
-             #t))
          (delete 'configure)
          (add-after 'build 'build-documentation
            (lambda _ (invoke "make" "-C" "docs" "man" "info")))
diff --git a/gnu/packages/engineering.scm b/gnu/packages/engineering.scm
index 3b433a1bfe..d53b25cff9 100644
--- a/gnu/packages/engineering.scm
+++ b/gnu/packages/engineering.scm
@@ -1101,7 +1101,7 @@ language, ADMS transforms Verilog-AMS code into other target languages.")
              (setenv "LDFLAGS"  (string-append "-Wl,-rpath="
                                                (assoc-ref outputs "out") "/lib"))
              #t)))))
-    (home-page "http://www.capstone-engine.org")
+    (home-page "https://www.capstone-engine.org")
     (synopsis "Lightweight multi-platform, multi-architecture disassembly framework")
     (description
      "Capstone is a lightweight multi-platform, multi-architecture disassembly
diff --git a/gnu/packages/enlightenment.scm b/gnu/packages/enlightenment.scm
index cff5ab14a9..40a5ec1cf4 100644
--- a/gnu/packages/enlightenment.scm
+++ b/gnu/packages/enlightenment.scm
@@ -62,7 +62,7 @@
 (define-public efl
   (package
     (name "efl")
-    (version "1.20.7")
+    (version "1.21.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -70,7 +70,7 @@
                     version ".tar.xz"))
               (sha256
                (base32
-                "1zkn5ix81xck3n84dxvkjh4alwc6zj8x989d0zqi5c6ppijvgadh"))))
+                "0jxfrcz2aq1synxzd6sh9nhxz7fg9qgz0idr8zj6gaiplmwbwrby"))))
     (outputs '("out"       ; 49 MB
                "include")) ; 17 MB
     (build-system gnu-build-system)
@@ -312,35 +312,36 @@ embedded systems.")
 (define-public python-efl
   (package
     (name "python-efl")
-    (version "1.20.0")
+    (version "1.21.0")
     (source
       (origin
         (method url-fetch)
-        (uri (list
-               (pypi-uri "python-efl" version)
-               (string-append "http://download.enlightenment.org/rel/bindings/"
-                              "python/python-efl-" version ".tar.gz")))
+        (uri (string-append "http://download.enlightenment.org/rel/bindings/"
+                            "python/python-efl-" version ".tar.xz"))
         (sha256
          (base32
-          "1680pgpf501nhbc9arm0nfj6rpcw17aryh0pgmmmszxlgpifpdzy"))))
+          "08x2cv8hnf004c3711250wrax21ffj5y8951pvk77h98als4pq47"))))
     (build-system python-build-system)
     (arguments
      '(#:phases
        (modify-phases %standard-phases
-        (replace 'build
-          (lambda _
-            (zero?
-              (system* "env" "ENABLE_CYTHON=1" "python" "setup.py" "build"))))
+         (replace 'build
+           (lambda _
+             (setenv "ENABLE_CYTHON" "1")
+             (invoke "python" "setup.py" "build")))
         (add-before 'build 'set-flags
-         (lambda _
-           (setenv "CFLAGS"
-                   (string-append "-I" (assoc-ref %build-inputs "python-dbus")
-                                  "/include/dbus-1.0"))
-           #t))
+          (lambda _
+            (setenv "CFLAGS"
+                    (string-append "-I" (assoc-ref %build-inputs "python-dbus")
+                                   "/include/dbus-1.0"))
+            #t))
         (add-before 'check 'set-environment
           (lambda _
             ;; Some tests require write access to HOME.
             (setenv "HOME" "/tmp")
+            ;; These tests try to connect to the internet.
+            (delete-file "tests/ecore/test_09_file_download.py")
+            (delete-file "tests/ecore/test_11_con.py")
             #t)))))
     (native-inputs
      `(("pkg-config" ,pkg-config)
@@ -421,3 +422,50 @@ and in creating applications based on the Enlightenment Foundation Library suite
      "Simple PDF viewer based on the Enlightenment Foundation Libraries.")
     (home-page "https://github.com/kaihu/lekha")
     (license license:gpl3+)))
+
+(define-public ephoto
+  (package
+    (name "ephoto")
+    (version "1.5")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (list (string-append "http://www.smhouston.us/stuff/ephoto-"
+                                  version ".tar.xz")
+                   (string-append "https://download.enlightenment.org/rel/"
+                                  "apps/ephoto/ephoto-" version ".tar.xz")))
+        (sha256
+         (base32
+          "04kli43sfsy6s660g13pjc0kjmgdcmq8m4qh02vvpcwv60mf9mgz"))))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'set-home-directory
+           ;; FATAL: Cannot create run dir '/homeless-shelter/.run' - errno=2
+           (lambda _ (setenv "HOME" "/tmp") #t)))))
+    (native-inputs
+     `(("check" ,check)
+       ("pkg-config" ,pkg-config)))
+    (inputs
+     `(("efl" ,efl)))
+    (home-page "http://smhouston.us/ephoto/")
+    (synopsis "EFL image viewer/editor/manipulator/slideshow creator")
+    (description "Ephoto is an image viewer and editor written using the
+@dfn{Enlightenment Foundation Libraries} (EFL).  It focuses on simplicity and ease
+of use, while taking advantage of the speed and small footprint the EFL provide.
+
+Ephoto’s features include:
+@enumerate
+@item Browsing the filesystem and displaying images in an easy to use grid view.
+@item Browsing images in a single image view format.
+@item Viewing images in a slideshow.
+@item Editing your image with features such as cropping, auto enhance,
+blurring, sharpening, brightness/contrast/gamma adjustments, hue/saturation/value
+adjustments, and color level adjustment.
+@item Applying artistic filters to your image such as black and white and old photo.
+@item Drag And Drop along with file operations to easy maintain your photo directories.
+@end enumerate\n")
+    (license (list
+               license:bsd-2 ; Ephoto's thumbnailing code
+               license:bsd-3))))
diff --git a/gnu/packages/finance.scm b/gnu/packages/finance.scm
index 2cbd4854ec..28bfb28f49 100644
--- a/gnu/packages/finance.scm
+++ b/gnu/packages/finance.scm
@@ -335,7 +335,7 @@ other machines/servers.  Electrum does not download the Bitcoin blockchain.")
   (package
     (inherit electrum)
     (name "electron-cash")
-    (version "3.3")
+    (version "3.3.1")
     (source
      (origin
        (method url-fetch)
@@ -346,7 +346,7 @@ other machines/servers.  Electrum does not download the Bitcoin blockchain.")
                            ".tar.gz"))
        (sha256
         (base32
-         "1x487hyacdm1qhik1mhfimr4jwcwz7sgsbkh11awrb6j19sxdxym"))
+         "1jdy89rfdwc2jadx3rqj5yvynpcn90cx6482ax9f1cj9gfxp9j2b"))
        (modules '((guix build utils)))
        (snippet
         '(begin
@@ -664,23 +664,38 @@ Ledger Blue/Nano S.")
 (define-public python-trezor
   (package
     (name "python-trezor")
-    (version "0.7.16")
+    (version "0.10.2")
     (source
       (origin
         (method url-fetch)
         (uri (pypi-uri "trezor" version))
         (sha256
           (base32
-            "055kii56wgwadl5z911s59ya2fnsqzk3n5i19s2hb9sv2by6knvb"))))
+            "138k6zsqqpb46k3rcpyslm9q7yq5i6k4myvr9n425jnkadf4vfjd"))))
     (build-system python-build-system)
+    (arguments
+     `(#:phases
+        (modify-phases %standard-phases
+          ;; Default tests run device-specific tests which fail, only run specific tests.
+          (replace 'check
+            (lambda* (#:key inputs outputs #:allow-other-keys)
+              (invoke "python" "-m" "pytest" "--pyarg" "trezorlib.tests.unit_tests")
+              (invoke "python" "-m" "pytest" "-m" "slow_cosi" "--pyarg" "trezorlib.tests.unit_tests")
+              )))))
     (propagated-inputs
-     `(("python-ecdsa" ,python-ecdsa)
+     `(("python-click" ,python-click)
+       ("python-ecdsa" ,python-ecdsa)
        ("python-hidapi" ,python-hidapi)
+       ("python-libusb1" ,python-libusb1)
        ("python-mnemonic" ,python-mnemonic)
        ("python-protobuf" ,python-protobuf)
-       ("python-requests" ,python-requests)))
+       ("python-pyblake2" ,python-pyblake2)
+       ("python-requests" ,python-requests)
+       ("python-typing" ,python-typing)))
     (native-inputs
-     `(("python-pyqt" ,python-pyqt))) ; Tests
+     `(("python-mock" ,python-mock) ; Tests
+       ("python-pyqt" ,python-pyqt) ; Tests
+       ("python-pytest" ,python-pytest))) ; Tests
     (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/game-development.scm b/gnu/packages/game-development.scm
index 8d66317ce7..86f2877f82 100644
--- a/gnu/packages/game-development.scm
+++ b/gnu/packages/game-development.scm
@@ -1037,23 +1037,18 @@ of use.")
     (license license:expat)))
 
 (define-public openmw
-  ;; XXX The current version does not support qt 5.11, but the upcoming
-  ;; version (0.44) will do.
-  (let ((commit "5bc073603e8c7887e015a0ef41b4cefd6e688aaf")
-        (revision "1"))
   (package
     (name "openmw")
-    (version (git-version "0.43" revision commit))
+    (version "0.44.0")
     (source
      (origin
-       (method git-fetch)
-       (uri (git-reference
-             (url "https://gitlab.com/OpenMW/openmw.git")
-             (commit commit)))
-       (file-name (string-append name "-" version "-checkout"))
+       (method url-fetch)
+       (uri
+        (string-append "https://github.com/OpenMW/openmw/archive/"
+                       name "-" version ".tar.gz"))
        (sha256
         (base32
-         "1sp4n3f1syvv0iz7n72wh226fyc0jh98cg8bvs574jvvqx6qn851"))))
+         "03fgm2f2r7y0aqlgp038pdlnllgvm3jimrp968p4nhz1sffvjzcy"))))
     (build-system cmake-build-system)
     (arguments
      `(#:tests? #f                      ; No test target
@@ -1080,7 +1075,7 @@ the 2002 open-world RPG Morrowind.  The engine comes with its own editor,
 called OpenMW-CS which allows the user to edit or create their own original
 games.")
     (home-page "https://openmw.org")
-    (license license:gpl3))))
+    (license license:gpl3)))
 
 (define-public godot
   (package
diff --git a/gnu/packages/games.scm b/gnu/packages/games.scm
index 0142fc8ed2..728f763806 100644
--- a/gnu/packages/games.scm
+++ b/gnu/packages/games.scm
@@ -793,6 +793,46 @@ role, and your gender.")
       (license:fsdg-compatible
         "https://nethack.org/common/license.html"))))
 
+(define-public pipewalker
+  (package
+    (name "pipewalker")
+    (version "0.9.4")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "http://downloads.sourceforge.net/pipewalker/"
+                           name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1x46wgk0s55562pd96cxagxkn6wpgglq779f9b64ff1k3xzp3myn"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:configure-flags
+       (list (string-append "--docdir=" (assoc-ref %outputs "out")
+                            "/share/doc/" ,name "-" ,version))
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'configure 'patch-docdir
+           ;; Makefile.in ignores configure's ‘--docdir=...’ option.  Fix that.
+           (lambda _
+             (substitute* "Makefile"
+               (("(pkgdocdatadir = ).*" _ assignment)
+                (string-append assignment "$(docdir)\n")))
+             #t)))))
+    (inputs
+     `(("libpng" ,libpng)
+       ("mesa" ,mesa)
+       ("sdl" ,sdl)))
+    (home-page "http://pipewalker.sourceforge.net/")
+    (synopsis "Logical tile puzzle")
+    (description
+     "PipeWalker is a simple puzzle game with many diffent themes: connect all
+computers to one network server, bring water from a source to the taps, etc.
+The underlying mechanism is always the same: you must turn each tile in the
+grid in the right direction to combine all components into a single circuit.
+Every puzzle has a complete solution, although there may be more than one.")
+    (license license:gpl3+)))
+
 (define-public prboom-plus
   (package
    (name "prboom-plus")
@@ -2430,7 +2470,7 @@ Transport Tycoon Deluxe.")
 (define openrct2-objects
   (package
    (name "openrct2-objects")
-   (version "1.0.2")
+   (version "1.0.6")
    (source
     (origin
      (method url-fetch)
@@ -2439,7 +2479,7 @@ Transport Tycoon Deluxe.")
      (file-name (string-append name "-" version ".zip"))
      (sha256
       (base32
-       "1z92afhbv13j1ig6fz0x8w9vdmfchssv16vwwhb0vj40pn1g1rwy"))))
+       "00kfy95zx6g4ldr6br5p7bwkwfx6pw9v78fd3rvghjnwyvf5fhki"))))
    (build-system trivial-build-system)
    (native-inputs
     `(("bash" ,bash)
@@ -2471,7 +2511,7 @@ Transport Tycoon Deluxe.")
 (define-public openrct2
   (package
     (name "openrct2")
-    (version "0.2.0")
+    (version "0.2.1")
     (source
      (origin
        (method url-fetch)
@@ -2479,7 +2519,7 @@ Transport Tycoon Deluxe.")
                            version ".tar.gz"))
        (sha256
         (base32
-         "1yrbjra27n2xxb1x47v962lc3qi8gwm5ws4f97952nvn533zrwxz"))
+         "1fxzk037xphpyk7vv5jfrcz739zrj86p43pnf5gjjv9rjxwv7m8f"))
        (file-name (string-append name "-" version ".tar.gz"))))
     (build-system cmake-build-system)
     (arguments
diff --git a/gnu/packages/gd.scm b/gnu/packages/gd.scm
index 56553a6745..c374695524 100644
--- a/gnu/packages/gd.scm
+++ b/gnu/packages/gd.scm
@@ -94,7 +94,7 @@ most common applications of GD involve website development.")
 (define-public perl-gd
   (package
     (name "perl-gd")
-    (version "2.68")
+    (version "2.69")
     (source
      (origin
        (method url-fetch)
@@ -102,7 +102,7 @@ most common applications of GD involve website development.")
                            "GD-" version ".tar.gz"))
        (sha256
         (base32
-         "0p2ya641nl5cvcqgw829xgabh835qijfd6vq2ba12862946xx8va"))))
+         "0palmq7l42fibqxhrabnjm7di4q8kciq9323902d717x3i4jvc6x"))))
     (build-system perl-build-system)
     (inputs
      `(("fontconfig" ,fontconfig)
diff --git a/gnu/packages/glib.scm b/gnu/packages/glib.scm
index 12ecb8ba65..8dff95fc70 100644
--- a/gnu/packages/glib.scm
+++ b/gnu/packages/glib.scm
@@ -787,7 +787,7 @@ programming langauage.  It also contains the utility
 (define-public appstream-glib
   (package
     (name "appstream-glib")
-    (version "0.7.10")
+    (version "0.7.12")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://people.freedesktop.org/~hughsient/"
@@ -795,7 +795,7 @@ programming langauage.  It also contains the utility
                                   "appstream-glib-" version ".tar.xz"))
               (sha256
                (base32
-                "08bs0hnkvdzqv9pakv1y4c4ph77rmzjq22g760w20sv7vs63nia3"))))
+                "1jcb2bggcic3iczr2hn8zp8a3c2hl1xjij0aawr7kwqmzh9b3jms"))))
     (build-system meson-build-system)
     (native-inputs
      `(("gettext" ,gettext-minimal)
diff --git a/gnu/packages/gnu-pw-mgr.scm b/gnu/packages/gnu-pw-mgr.scm
index 38f9e8187a..a56bc09e61 100644
--- a/gnu/packages/gnu-pw-mgr.scm
+++ b/gnu/packages/gnu-pw-mgr.scm
@@ -30,7 +30,7 @@
 (define-public gnu-pw-mgr
   (package
     (name "gnu-pw-mgr")
-    (version "2.3.3")
+    (version "2.4.2")
     (source
      (origin
       (method url-fetch)
@@ -38,7 +38,7 @@
                           version ".tar.xz"))
       (sha256
        (base32
-        "04xh38j7l0sfnb01kp05xc908pvqfc0lph94k7n9bi46zy3qy7ma"))))
+        "1yvdzc5w37qrjrkby5699ygj9bhkvgi3zk9k9jcjry1j6b7wdl17"))))
     (build-system gnu-build-system)
     (arguments
      '(#:phases
diff --git a/gnu/packages/gnupg.scm b/gnu/packages/gnupg.scm
index 1da48bfa66..0cd9818326 100644
--- a/gnu/packages/gnupg.scm
+++ b/gnu/packages/gnupg.scm
@@ -220,14 +220,14 @@ compatible to GNU Pth.")
 (define-public gnupg
   (package
     (name "gnupg")
-    (version "2.2.9")
+    (version "2.2.10")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnupg/gnupg/gnupg-" version
                                   ".tar.bz2"))
               (sha256
                (base32
-                "0r11mx8nkh7ysrnshs560amha5csx8zcaggb5kxcksx1zymyly32"))))
+                "05f9804g72pffdxgvxjmjzkfcpjg1x221g9rwcr8fi51hrxd77br"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)))
diff --git a/gnu/packages/gnuzilla.scm b/gnu/packages/gnuzilla.scm
index b6bf89a75b..77a74a0ec4 100644
--- a/gnu/packages/gnuzilla.scm
+++ b/gnu/packages/gnuzilla.scm
@@ -323,7 +323,7 @@ in C/C++.")
 (define-public nspr
   (package
     (name "nspr")
-    (version "4.19")
+    (version "4.20")
     (source (origin
              (method url-fetch)
              (uri (string-append
@@ -331,7 +331,7 @@ in C/C++.")
                    version "/src/nspr-" version ".tar.gz"))
              (sha256
               (base32
-               "0agpv3f17h8kmzi0ifibaaxc1k3xc0q61wqw3l6r2xr2z8bmkn9f"))))
+               "0vjms4j75zvv5b2siyafg7hh924ysx2cwjad8spzp7x87n8n929c"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("perl" ,perl)))
@@ -359,7 +359,7 @@ in the Mozilla clients.")
 (define-public nss
   (package
     (name "nss")
-    (version "3.38")
+    (version "3.39")
     (source (origin
               (method url-fetch)
               (uri (let ((version-with-underscores
@@ -370,7 +370,7 @@ in the Mozilla clients.")
                       "nss-" version ".tar.gz")))
               (sha256
                (base32
-                "0qigcy3d169cf67jzv3rbai0m6dn34vp8h2z696mz4yn10y3sr1c"))
+                "0jw6qlfl2g47hhx056nvnj6h92bk3sn46hy3ig61a911dzblvrkb"))
               ;; Create nss.pc and nss-config.
               (patches (search-patches "nss-pkgconfig.patch"
                                        "nss-increase-test-timeout.patch"))))
diff --git a/gnu/packages/graphics.scm b/gnu/packages/graphics.scm
index 6632c9a1a3..9c2869c12b 100644
--- a/gnu/packages/graphics.scm
+++ b/gnu/packages/graphics.scm
@@ -228,14 +228,15 @@ many more.")
 (define-public ilmbase
   (package
     (name "ilmbase")
-    (version "2.2.1")
+    (version "2.3.0")
     (source (origin
               (method url-fetch)
-              (uri (string-append "mirror://savannah/openexr/ilmbase-"
+              (uri (string-append "https://github.com/openexr/openexr/releases"
+                                  "/download/v" version "/ilmbase-"
                                   version ".tar.gz"))
               (sha256
                (base32
-                "17k0hq19wplx9s029kjrq6c51x2ryrfmaavcappkd0g67gk0dhna"))
+                "0qiq5bqq9rxhqjiym2k36sx4vq8adgrz6xf6qwizi9bqm78phsa5"))
               (patches (search-patches "ilmbase-fix-tests.patch"))))
     (build-system gnu-build-system)
     (home-page "http://www.openexr.com/")
@@ -319,29 +320,22 @@ graphics.")
 (define-public openexr
   (package
     (name "openexr")
-    (version "2.2.1")
+    (version "2.3.0")
     (source (origin
               (method url-fetch)
-              (uri (string-append "mirror://savannah/openexr/openexr-"
+              (uri (string-append "https://github.com/openexr/openexr/releases"
+                                  "/download/v" version "/openexr-"
                                   version ".tar.gz"))
               (sha256
                (base32
-                "1kdf2gqznsdinbd5vcmqnif442nyhdf9l7ckc51410qm2gv5m6lg"))
+                "19jywbs9qjvsbkvlvzayzi81s976k53wg53vw4xj66lcgylb6v7x"))
               (modules '((guix build utils)))
               (snippet
                '(begin
                   (substitute* (find-files "." "tmpDir\\.h")
                     (("\"/var/tmp/\"")
                      "\"/tmp/\""))
-
-                  ;; Install 'ImfStdIO.h'.  Reported at
-                  ;; <https://lists.nongnu.org/archive/html/openexr-devel/2016-06/msg00001.html>
-                  ;; and <https://github.com/openexr/openexr/pull/184>.
-                  (substitute* "IlmImf/Makefile.in"
-                    (("ImfIO\\.h")
-                     "ImfIO.h ImfStdIO.h"))
-                  #t))
-              (patches (search-patches "openexr-missing-samples.patch"))))
+                  #t))))
     (build-system gnu-build-system)
     (arguments
      '(#:phases
diff --git a/gnu/packages/gsasl.scm b/gnu/packages/gsasl.scm
index 9dcebe9832..127b476ef3 100644
--- a/gnu/packages/gsasl.scm
+++ b/gnu/packages/gsasl.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2012 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2017 Eric Bavier <bavier@member.fsf.org>
+;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -33,14 +34,14 @@
 (define-public libntlm
   (package
     (name "libntlm")
-    (version "1.4")
+    (version "1.5")
     (source (origin
               (method url-fetch)
-              (uri (string-append "http://www.nongnu.org/libntlm/releases/"
+              (uri (string-append "https://www.nongnu.org/libntlm/releases/"
                                   "libntlm-" version ".tar.gz"))
               (sha256
                (base32
-                "129532iiip2cjr5h03bgz184v64v27sfm1r70v3ms4yk65gdf5c4"))))
+                "1gcvv7f9rggpxay81qv6kw5hr6gd4qiyzkbwhzz02fx9jvv9kmsk"))))
     (build-system gnu-build-system)
     (synopsis "Library that implements NTLM authentication")
     (description
diff --git a/gnu/packages/hardware.scm b/gnu/packages/hardware.scm
new file mode 100644
index 0000000000..f77336e504
--- /dev/null
+++ b/gnu/packages/hardware.scm
@@ -0,0 +1,124 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;;
+;;; 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 hardware)
+  #:use-module (gnu packages compression)
+  #:use-module (gnu packages glib)
+  #:use-module (gnu packages libusb)
+  #:use-module (gnu packages linux)
+  #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages xdisorg)
+  #:use-module (gnu packages xorg)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix download)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix packages))
+
+;; This is a module for packages related to physical hardware that don't (yet)
+;; have a more specific home like gps.scm, security-token.scm, &c.
+
+(define-public ddcutil
+  (package
+    (name "ddcutil")
+    (version "0.9.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://www.ddcutil.com/tarballs/"
+                           name "-" version ".tar.gz"))
+       (sha256
+        (base32 "1b4bm3zhk5vnad6fxf0mn8nrlj3fngifl7nzxgxw0n56hlv7ccv0"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("eudev" ,eudev)
+       ("glib" ,glib)
+       ("libdrm" ,libdrm)               ; enhanced diagnostics
+       ("libusb" ,libusb)               ; support USB monitors
+       ("libx11" ,libx11)               ; enhanced diagnostics
+       ("libxrandr" ,libxrandr)
+       ("zlib" ,zlib)))
+    (home-page "https://www.ddcutil.com/")
+    (synopsis "Control external monitor settings")
+    (description
+     "ddcutil can query and modify most external monitors' settings, such as
+brightness, colour levels, and input sources.  Generally speaking, any setting
+that can be changed by pressing buttons on the monitor can be modified by
+ddcutil.
+
+ddcutil communicates directly with monitors implementing the Monitor Control
+Command Set (@dfn{MCCS}).  It usually does so through the the Display Data
+Channel Command Interface (@dfn{DDC/CI}) protocol on the I2C bus, but can also
+communicate over USB as per the USB Monitor Control Class Specification.
+
+One particular use case is in colour profile management.  Monitor calibration
+is relative to the monitor colour settings currently in effect, e.g. red gain.
+ddcutil allows colour-related settings to be saved at the time a monitor is
+calibrated, and restored when the calibration is applied.")
+    (license (list license:bsd-3        ; FindDDCUtil.cmake
+                   license:gpl2+))))    ; everything else
+
+(define-public msr-tools
+  (package
+    (name "msr-tools")
+    (version "1.3")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://01.org/sites/default/files/downloads/"
+                           name "/" name "-" version ".zip"))
+       (sha256
+        (base32 "07hxmddg0l31kjfmaq84ni142lbbvgq6391r8bd79wpm819pnigr"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:make-flags
+       (list (string-append "sbindir=" (assoc-ref %outputs "out") "/sbin"))
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)            ; no configure script
+         (add-before 'install 'create-output-directory
+           (lambda* (#:key outputs #:allow-other-keys)
+             ;; 'make install' assumes that sbindir exists.
+             (let* ((out  (assoc-ref outputs "out"))
+                    (sbin (string-append out "/sbin")))
+               (mkdir-p sbin)
+               #t))))
+       #:tests? #f))                    ; no test suite
+    (native-inputs
+     `(("unzip" ,unzip)))
+    ;; These registers and the CPUID instruction only exist on (most) x86 chips.
+    (supported-systems (list "i686-linux" "x86_64-linux"))
+    (home-page "https://01.org/msr-tools/")
+    (synopsis "Read and write Model-Specific Registers (@dfn{MSR})")
+    (description
+     "The MSR Tools project provides console utilities to directly access the
+Model-Specific Registers (@dfn{MSR}s) and CPU ID of Intel-compatible processors:
+
+@itemize
+@item @command{cpuid}: show identification and feature information of any CPU
+@item @command{rdmsr}: read MSRs from any CPU or all CPUs
+@item @command{wrmsr}: write to MSRs on any CPU or all CPUs
+@end itemize
+
+These tools can be used to query and modify certain low-level CPU parameters,
+such as the Turbo Boost ratio and Thermal Design Power (@dfn{TDP}) limits.
+
+MSR addresses differ (greatly) between processors, and any such modification can
+be dangerous and may void your CPU or system board's warranty.")
+    (license license:gpl2)))     ; cpuid.c is gpl2, {rd,wr}msr.c are gpl2+
diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index 7d7d85f951..a07bb049a2 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -34,6 +34,7 @@
 
 (define-module (gnu packages haskell)
   #:use-module (gnu packages)
+  #:use-module (gnu packages base)
   #:use-module (gnu packages bootstrap)
   #:use-module (gnu packages check)
   #:use-module (gnu packages compression)
@@ -322,7 +323,7 @@ top of CLISP.")
 interactive environment for the functional language Haskell.")
     (license license:bsd-3)))
 
-(define-public ghc-8
+(define-public ghc-8.0
   (package
     (name "ghc")
     (version "8.0.2")
@@ -434,7 +435,131 @@ interactive environment for the functional language Haskell.")
 interactive environment for the functional language Haskell.")
     (license license:bsd-3)))
 
-(define-public ghc ghc-8)
+(define-public ghc-8
+  (package (inherit ghc-8.0)
+    (name "ghc")
+    (version "8.4.3")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://www.haskell.org/ghc/dist/"
+                           version "/" name "-" version "-src.tar.xz"))
+       (sha256
+        (base32 "1mk046vb561j75saz05rghhbkps46ym5aci4264dwc2qk3dayixf"))))
+    (inputs
+     `(("gmp" ,gmp)
+       ("ncurses" ,ncurses)
+       ("libffi" ,libffi)
+       ("target-binutils" ,binutils)
+       ("target-gcc" ,gcc)
+       ("target-ld-wrapper" ,(make-ld-wrapper "ld-wrapper"
+                                              #:binutils binutils))))
+    (native-inputs
+     `(("perl" ,perl)
+       ("python" ,python)               ; for tests
+       ("ghostscript" ,ghostscript)     ; for tests
+       ;; GHC 8.4.3 is built with GHC 8.
+       ("ghc-bootstrap" ,ghc-8.0)
+       ("ghc-testsuite"
+        ,(origin
+           (method url-fetch)
+           (uri (string-append
+                 "https://www.haskell.org/ghc/dist/"
+                 version "/" name "-" version "-testsuite.tar.xz"))
+           (sha256
+            (base32
+             "1z55b1z0m3plqd2d1ks6w5wvx7igm7zsk3i4v7cms003z0as0hzz"))))))
+    (arguments
+     `(#:test-target "test"
+       ;; We get a smaller number of test failures by disabling parallel test
+       ;; execution.
+       #:parallel-tests? #f
+
+       ;; The DSOs use $ORIGIN to refer to each other, but (guix build
+       ;; gremlin) doesn't support it yet, so skip this phase.
+       #:validate-runpath? #f
+
+       ;; Don't pass --build=<triplet>, because the configure script
+       ;; auto-detects slightly different triplets for --host and --target and
+       ;; then complains that they don't match.
+       #:build #f
+
+       #:configure-flags
+       (list
+        (string-append "--with-gmp-libraries="
+                       (assoc-ref %build-inputs "gmp") "/lib")
+        (string-append "--with-gmp-includes="
+                       (assoc-ref %build-inputs "gmp") "/include")
+        "--with-system-libffi"
+        (string-append "--with-ffi-libraries="
+                       (assoc-ref %build-inputs "libffi") "/lib")
+        (string-append "--with-ffi-includes="
+                       (assoc-ref %build-inputs "libffi") "/include")
+        (string-append "--with-curses-libraries="
+                       (assoc-ref %build-inputs "ncurses") "/lib")
+        (string-append "--with-curses-includes="
+                       (assoc-ref %build-inputs "ncurses") "/include"))
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'unpack-testsuite
+           (lambda* (#:key inputs #:allow-other-keys)
+             (invoke "tar" "xvf"
+                     (assoc-ref inputs "ghc-testsuite")
+                     "--strip-components=1")
+             #t))
+         (add-after 'unpack-testsuite 'fix-shell-wrappers
+           (lambda _
+             (substitute* '("driver/ghci/ghc.mk"
+                            "utils/mkdirhier/ghc.mk"
+                            "rules/shell-wrapper.mk")
+               (("echo '#!/bin/sh'")
+                (format #f "echo '#!~a'" (which "sh"))))
+             #t))
+         ;; This is necessary because the configure system no longer uses
+         ;; “AC_PATH_” but “AC_CHECK_”, setting the variables to just the
+         ;; plain command names.
+         (add-before 'configure 'set-target-programs
+           (lambda* (#:key inputs #:allow-other-keys)
+             (let ((binutils (assoc-ref inputs "target-binutils"))
+                   (gcc (assoc-ref inputs "target-gcc"))
+                   (ld-wrapper (assoc-ref inputs "target-ld-wrapper")))
+               (setenv "CC" (string-append gcc "/bin/gcc"))
+               (setenv "CXX" (string-append gcc "/bin/g++"))
+               (setenv "LD" (string-append ld-wrapper "/bin/ld"))
+               (setenv "NM" (string-append binutils "/bin/nm"))
+               (setenv "RANLIB" (string-append binutils "/bin/ranlib"))
+               (setenv "STRIP" (string-append binutils "/bin/strip"))
+               ;; The 'ar' command does not follow the same pattern.
+               (setenv "fp_prog_ar" (string-append binutils "/bin/ar"))
+               #t)))
+         (add-before 'build 'fix-references
+           (lambda _
+             (substitute* '("testsuite/timeout/Makefile"
+                            "testsuite/timeout/timeout.py"
+                            "testsuite/timeout/timeout.hs"
+                            "testsuite/tests/programs/life_space_leak/life.test"
+                            ;; libraries
+                            "libraries/process/System/Process/Posix.hs"
+                            "libraries/process/tests/process001.hs"
+                            "libraries/process/tests/process002.hs"
+                            "libraries/unix/cbits/execvpe.c")
+               (("/bin/sh") (which "sh"))
+               (("/bin/ls") (which "ls"))
+               (("/bin/rm") "rm"))
+             #t))
+         (add-before 'build 'fix-environment
+           (lambda _
+             (unsetenv "GHC_PACKAGE_PATH")
+             (setenv "CONFIG_SHELL" (which "bash"))
+             #t)))))
+    (native-search-paths (list (search-path-specification
+                                (variable "GHC_PACKAGE_PATH")
+                                (files (list
+                                        (string-append "lib/ghc-" version)))
+                                (file-pattern ".*\\.conf\\.d$")
+                                (file-type 'directory))))))
+
+(define-public ghc ghc-8.0)
 
 (define-public ghc-hostname
   (package
diff --git a/gnu/packages/javascript.scm b/gnu/packages/javascript.scm
index 3a9e88ad08..75517caf6b 100644
--- a/gnu/packages/javascript.scm
+++ b/gnu/packages/javascript.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2017 Arun Isaac <arunisaac@systemreboot.net>
 ;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
-;;; Copyright © 2017 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2017 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2018 Nicolas Goaziou <mail@nicolasgoaziou.fr>
 ;;;
@@ -26,6 +26,7 @@
   #:use-module (gnu packages base)
   #:use-module (gnu packages compression)
   #:use-module (gnu packages lisp)
+  #:use-module (gnu packages readline)
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix git-download)
@@ -412,7 +413,7 @@ external server.")
 (define-public mujs
   (package
     (name "mujs")
-    (version "1.0.3")
+    (version "1.0.4")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -421,14 +422,16 @@ external server.")
               (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
-                "15ml3rzjl44lqdb1yxipdh8bhh0rvk2g6w6sjv667q8xywijwqv8"))))
+                "1ly0yybs66nk63517kg4dmdc7dbikhqqqf2r2kvccgzzvv6k0vs8"))))
     (build-system gnu-build-system)
     (arguments
      '(#:phases (modify-phases %standard-phases
-                  (delete 'configure)) ; no configure
+                  (delete 'configure))  ; no configure
        #:make-flags (list (string-append "prefix=" (assoc-ref %outputs "out"))
                           (string-append "CC=gcc"))
-       #:tests? #f)) ; no tests
+       #:tests? #f))                    ; no tests
+    (inputs
+     `(("readline" ,readline)))
     (home-page "https://artifex.com/mujs/")
     (synopsis "JavaScript interpreter written in C")
     (description "MuJS is a lightweight Javascript interpreter designed for
diff --git a/gnu/packages/kde-frameworks.scm b/gnu/packages/kde-frameworks.scm
index 7dc2cf37fe..5295a356a2 100644
--- a/gnu/packages/kde-frameworks.scm
+++ b/gnu/packages/kde-frameworks.scm
@@ -75,7 +75,7 @@
 (define-public extra-cmake-modules
   (package
     (name "extra-cmake-modules")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -84,21 +84,13 @@
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1ml6s3ssr5izm3vnzlg5gn2nkcbz5l5nmapvyr4ml7n0089b43a3"))))
+                "07pdgjyrxniacqcfvrzw8ij3kasx5pkbq38k6491qbhzfm8vi7y0"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("qtbase" ,qtbase))) ; For tests (needs qmake)
     (arguments
      `(#:phases
        (modify-phases %standard-phases
-         (add-after 'unpack 'post-5.42.0-release-fix
-           ;; FIXME: Remove for > 5.42.0
-           ;; ECMToolchainAndroidTest doesn't exist anymore
-           ;; https://cgit.kde.org/extra-cmake-modules.git/commit?id=30f31c46d8caf4
-           (lambda _
-             (substitute* "tests/CMakeLists.txt"
-               (("^add_test_macro\\(ECMToolchainAndroidTest dummy\\)") ""))
-             #t))
          (add-after 'unpack 'fix-lib-path
            (lambda _
              ;; Always install into /lib and not into /lib64.
@@ -283,7 +275,7 @@ Phonon-GStreamer is a backend based on the GStreamer multimedia library.")
 (define-public attica
   (package
     (name "attica")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -292,8 +284,16 @@ Phonon-GStreamer is a backend based on the GStreamer multimedia library.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0icjsk5sbri6nwybb2301wc6ysc1h4p35rxqp0adifyksq8akyxd"))))
+                "1iqclahs9yzyjnkzbzr8hl9j6q8m2djdm6mix92xwrakgirnl3gn"))))
     (build-system cmake-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'disable-network-tests
+           (lambda _
+             ;; These tests require network access.
+             (substitute* "autotests/CMakeLists.txt"
+               ((".*providertest.cpp") "")))))))
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
     (inputs
@@ -315,7 +315,7 @@ http://freedesktop.org/wiki/Specifications/open-collaboration-services/")
 (define-public bluez-qt
   (package
     (name "bluez-qt")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -324,7 +324,7 @@ http://freedesktop.org/wiki/Specifications/open-collaboration-services/")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0pbb0nn70hbsnp9q8jvqr3s85gh4bnnh1mp8xfkia2hp4c63ws9f"))))
+                "0mgnq7w52ksr8b7ys2f1m3irnviy011bsaggh489fjy0xlzk5ard"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("dbus" ,dbus)
@@ -348,7 +348,7 @@ Bluetooth stack.  It is used by the KDE Bluetooth stack, BlueDevil.")
 (define-public breeze-icons
   (package
     (name "breeze-icons")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -357,7 +357,7 @@ Bluetooth stack.  It is used by the KDE Bluetooth stack, BlueDevil.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0mrj0b022yfy669qqby09k4ij6aqyky23gpnjcp85df9saq0x44r"))))
+                "178620hhqlv6dl8qal2bmiw55s8b3p4h16q8cgkmq5q5i59nzcph"))))
     (build-system cmake-build-system)
     (arguments
      `(#:phases
@@ -388,7 +388,7 @@ It is the default icon theme for the KDE Plasma 5 desktop.")
 (define-public kapidox
   (package
     (name "kapidox")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -397,7 +397,7 @@ It is the default icon theme for the KDE Plasma 5 desktop.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0izyd66p5403gl09l7irzy97mb9b14n4zyjrwap800zjlpwh41pz"))))
+                "09jph3hvasqx1ia0l7is9brc08nxvh9qmg8564nh5cmqaxdwj559"))))
     (build-system cmake-build-system)
     (arguments
      `(#:tests? #f)) ; has no test target
@@ -430,7 +430,7 @@ documentation.")
 (define-public karchive
   (package
     (name "karchive")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -439,7 +439,7 @@ documentation.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1vq2ngdxmdl6hzjwdcrv66ban8v9s5jiqwy1mgdqv4ak14l31qbi"))))
+                "1p1gwqda2bsjdysp4ggwdsldbasyfl075xn3wchqyakdv2bdzmn0"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -464,7 +464,7 @@ GZip format, via a subclass of QIODevice.")
 (define-public kcodecs
   (package
     (name "kcodecs")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -473,7 +473,7 @@ GZip format, via a subclass of QIODevice.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0b19z432r9dnyjknvwffhcmrg969yhydjvy4qrkrf22026f4smwc"))))
+                "07va63gsfjrc5ha9rdli923cwyzxpb3v8xgf1zfhw75cfkgda3nz"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -500,7 +500,7 @@ Internet).")
 (define-public kconfig
   (package
     (name "kconfig")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -509,7 +509,7 @@ Internet).")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "08gg0d20c09j7hyxm8ydpzk2yf30c87g9ag7a9nfykrmi6cqirdq"))))
+                "0cb3crnlr8hr5npq3ykfxqd4yckmkykzrrizfs89ryhmznc2ngsf"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -567,7 +567,7 @@ propagate their changes to their respective configuration files.")
 (define-public kcoreaddons
   (package
     (name "kcoreaddons")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -576,7 +576,7 @@ propagate their changes to their respective configuration files.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "17qv7r6z72mm9a0hyx5dgk90ikhhgm41bkvnq2hjal0py2lsnrs9"))))
+                "00s22jvbwav20cidnp8v9fgc6pqbp4wnqkb2spv18mjhg4pv3bqj"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -607,7 +607,7 @@ many more.")
 (define-public kdbusaddons
   (package
     (name "kdbusaddons")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -616,7 +616,7 @@ many more.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1613pc3r70jnzvpwm1xjdbdsmcpx28jwvcs2qq9swlywr5qr9hbd"))
+                "1fnmrrffp3kfwyjfzqkzlizflpyqgzbjljb51ppmdypcq8wy9ibh"))
               (patches (search-patches "kdbusaddons-kinit-file-name.patch"))))
     (build-system cmake-build-system)
     (native-inputs
@@ -652,7 +652,7 @@ as well as an API to create KDED modules.")
 (define-public kdnssd
   (package
     (name "kdnssd")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -661,7 +661,7 @@ as well as an API to create KDED modules.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1k1rz62h3mafliik5n0k98dc56b5v2v6qyqj40696mcyc2d1yvll"))))
+                "1n61id2x1iianshg8g6fw389mqihz4h8sj9hnng7cdg4csh72ffr"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -680,7 +680,7 @@ infrastructure.")
 (define-public kguiaddons
   (package
     (name "kguiaddons")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -689,7 +689,7 @@ infrastructure.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "193i8b4f13dkgp88m3pk9wzi0dhx7qmsnmpizxia3457gg016wn7"))))
+                "1zkjd3l5pyvvilcc9lbdgqaxnpvh586yf0cndl90h3x89hy1d4xk"))))
     (build-system cmake-build-system)
     ;; TODO: Build packages for the Python bindings.  Ideally this will be
     ;; done for all versions of python guix supports.  Requires python,
@@ -718,7 +718,7 @@ interfaces in the areas of colors, fonts, text, images, keyboard input.")
 (define-public ki18n
   (package
     (name "ki18n")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -727,7 +727,7 @@ interfaces in the areas of colors, fonts, text, images, keyboard input.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1rpriflb2a48j94zxgh63l6rzq4nlnlkvy89ns1vkdw42bnqrjx9"))))
+                "1i4rdrxann45zl6fkmfd1b96q52g0mpc5x19fx9h80crapkm8jjz"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("gettext" ,gettext-minimal)
@@ -761,7 +761,7 @@ translation scripting.")
 (define-public kidletime
   (package
     (name "kidletime")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -770,7 +770,7 @@ translation scripting.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "019r41r28pcrcn1kwxsll53za705jkc9n23b6sr2lplgjk05bcxh"))))
+                "1fd02anlmaa0hnnp5q1s9973m3asy56qppwq1va1g6ga3csv3wrv"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -792,7 +792,7 @@ or user activity.")
   ;; plasma-framework which is tier 3.
   (package
     (name "kirigami")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -801,7 +801,7 @@ or user activity.")
                     "kirigami2-" version ".tar.xz"))
               (sha256
                (base32
-                "11gqn7amp0r9bgh8ldgisfc2lrkzkn5mq2a1madf24nvjbkvqnqv"))))
+                "1wan9h7kvjzvyzfjfjd512lxiac5prhs493xjqwxgags6kxwglaz"))))
     (properties `((upstream-name . "kirigami2")))
     (build-system cmake-build-system)
     (native-inputs
@@ -841,7 +841,7 @@ of applications that follow the Kirigami Human Interface Guidelines.")
 (define-public kitemmodels
   (package
     (name "kitemmodels")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -850,7 +850,7 @@ of applications that follow the Kirigami Human Interface Guidelines.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0mcdzdqwmvf9pwirsrnjbhrgqphnfmanbl9zij4qsmin8n866mhc"))))
+                "1frha301540js45mrxiw034m9b2rwsa56xphkqn6cm4jmn48qdjg"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -900,7 +900,7 @@ model to observers
 (define-public kitemviews
   (package
     (name "kitemviews")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -909,7 +909,7 @@ model to observers
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1j1q0b08f8mnfc3r2a7rplyb2nv9f0aq5a3fxskinvg70c6y248w"))))
+                "1aj605q2p72w4rb9i0f2xb93bn5xfjq9sl5i4h6rqflcvvy7qpdp"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -935,7 +935,7 @@ to flat and hierarchical lists.")
 (define-public kplotting
   (package
     (name "kplotting")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -944,7 +944,7 @@ to flat and hierarchical lists.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "109b9grshrwralyp8ilkbf1k0akaggygqh6wafqdf0ris0ps13l9"))))
+                "13fzqqkyxs4ja6n5yb9lc5jx4qpsmrbsiihnwrgj3lhpzhlr91n0"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -970,7 +970,7 @@ pixel units.")
 (define-public ksyntaxhighlighting
   (package
     (name "ksyntaxhighlighting")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -979,7 +979,7 @@ pixel units.")
                     "syntax-highlighting-" version ".tar.xz"))
               (sha256
                (base32
-                "1iwiym50859jki4x41rfdmbd14jiq5lr2hdg46pjkyw17njdjd60"))))
+                "17rkgzkfiz5dv0xr67na7ikqszgwjnf2gc11b2h47qdsr7pgx95v"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1019,7 +1019,7 @@ integration with a custom editor as well as a ready-to-use
 (define-public kwayland
   (package
     (name "kwayland")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1028,7 +1028,7 @@ integration with a custom editor as well as a ready-to-use
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0wr6ygppahxsx3dh71h2wmybv7z7iyqdv7wn80cxb0mp4zpyinh7"))))
+                "0d95l2i3j1xxkc15n57w4rhf3di02zna4zzn4gap9qdhfxlfbqi6"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1058,7 +1058,7 @@ represented by a QPoint or a QSize.")
 (define-public kwidgetsaddons
   (package
     (name "kwidgetsaddons")
-    (version "5.42.1")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1067,7 +1067,7 @@ represented by a QPoint or a QSize.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0h0vfrfl5zi01fpvmd825kazzlyawz3i66qrfkymdrnvqmfzcmlg"))))
+                "1frgqz9njbc81pfy6gl6p0hyh1977lg31ynrx5wy7lg7fwaxwl92"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1105,7 +1105,7 @@ configuration pages, message boxes, and password requests.")
 (define-public kwindowsystem
   (package
     (name "kwindowsystem")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1114,7 +1114,7 @@ configuration pages, message boxes, and password requests.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "15k6x0f93qxka3mz7qfzak2ibdd88q77pz6akil8s3g41zsg2dqv"))))
+                "175rzwrjndhawyy4x11lbihdr1r9gwxmxjpbz4x06hlz4g50wffp"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1170,7 +1170,7 @@ lower level classes for interaction with the X Windowing System.")
 (define-public modemmanager-qt
   (package
     (name "modemmanager-qt")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1179,7 +1179,7 @@ lower level classes for interaction with the X Windowing System.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0q6qzn60z55h0gyc9xwdfaq45mjpk3zrr6d4qqjjfkqsr3866sfx"))))
+                "1wf3v552vbr4kh2d770zn3yn0q3bqjqbfrvnf813mnld7961m7p2"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1208,7 +1208,7 @@ messages.")
 (define-public networkmanager-qt
   (package
     (name "networkmanager-qt")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1217,7 +1217,7 @@ messages.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "03hhvx8d52mfgbhd4gn0vhsk9k1fv1pvq24ixxdgs2mw44v884xq"))))
+                "16pnd52m9srcb2ml3vc3kd9k1yak5rq09yci39qp7z5jbdy7jk2z"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1247,7 +1247,7 @@ which are used in DBus communication.")
 (define-public oxygen-icons
   (package
     (name "oxygen-icons")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1256,7 +1256,7 @@ which are used in DBus communication.")
                     name "5" "-" version ".tar.xz"))
               (sha256
                (base32
-                "0pnav9h0xmvbaamzpcyznjjv25slz8maszshx7sj7h07b5a23x46"))))
+                "0llx06sr36cd6vgkgm3jw6k4cv1cfx3r6x6lmb477wpahis0n75g"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1272,7 +1272,7 @@ which are used in DBus communication.")
 (define-public prison
   (package
     (name "prison")
-    (version "5.42.0")
+    (version "5.49.0")
     (source
      (origin
        (method url-fetch)
@@ -1280,7 +1280,7 @@ which are used in DBus communication.")
                            (version-major+minor version) "/"
                            name "-" version ".tar.xz"))
        (sha256
-        (base32 "0bhg2fjdwsv7mk16jh1nc3miwggz1dl9l99l2f20xvi75hn7rryg"))))
+        (base32 "0dppz9x6k84sl0aiyjlh3xigqgda64r8mij3bzxcdkv2wbc4ld9d"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -1297,7 +1297,7 @@ provides uniform access to generation of barcodes with data.")
 (define-public qqc2-desktop-style
   (package
     (name "qqc2-desktop-style")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1306,7 +1306,7 @@ provides uniform access to generation of barcodes with data.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1arlfhcshfs11pgf87jzjgln1p711zlx0v0q014740mbzb9g5wnk"))))
+                "1vbms7b8x1y7yh8im8dv1q3wwl3j2x4r47yqg86f28grw2r2n2zj"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1331,7 +1331,7 @@ feel.")
 (define-public solid
   (package
     (name "solid")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1340,7 +1340,7 @@ feel.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "10lr8paaq6vaiqn833kzcdc3kkyv8j9fdchy7h8pvi9ajjjwq0lq"))))
+                "1p7rdmf2f8520xc7zp7wxlcizyyjfxwq5mf95qsfpwc4dl0c43gp"))))
     (build-system cmake-build-system)
     (arguments
      `(#:phases
@@ -1370,7 +1370,7 @@ system.")
 (define-public sonnet
   (package
     (name "sonnet")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1379,7 +1379,7 @@ system.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1r3amddmy0nm8klw0jzvb8bl1l9hkrx50d8j0zq2lbjy36h3yliw"))))
+                "0m5pmka1hwjsg3c3qvx087z3fjrfw0ayk7ylgjls5iwd39kkl1b3"))))
     (build-system cmake-build-system)
     (arguments
      `(#:phases
@@ -1407,7 +1407,7 @@ ASpell and HUNSPELL.")
 (define-public threadweaver
   (package
     (name "threadweaver")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1416,7 +1416,7 @@ ASpell and HUNSPELL.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1isqlpnfxzxyz7mdm7yfrafgnx09mcndicdgdw3mi4r4misbrrbn"))))
+                "099bs429p71dzrqy25z61rvn48w3b73p7yag4q69jnxcpj0qcyz7"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -1437,7 +1437,7 @@ uses a job-based interface to queue tasks and execute them in an efficient way."
 (define-public kactivities
   (package
     (name "kactivities")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1446,7 +1446,7 @@ uses a job-based interface to queue tasks and execute them in an efficient way."
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0z0ac426npq99s1b8yzrqkjjjc34nbxlpw8pw388yj7fa41hw21r"))))
+                "117f3zrdbs0pa10wn7vy691n02m01h6x4pm8m1q3f4pjm0k4kqim"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -1482,7 +1482,7 @@ with other frameworks.")
 (define-public kauth
   (package
     (name "kauth")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1491,7 +1491,7 @@ with other frameworks.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "04kqb2hhr9lkpkxiaqlnyk0kmk6p89z5fgp5i5g83hsi8maz7swi"))))
+                "0qg3zwg3kfx2snmvsw4ixr0qds7bd7992dxggvi9dcny7dm9q0n8"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("dbus" ,dbus)
@@ -1529,7 +1529,7 @@ utilities.")
 (define-public kcompletion
   (package
     (name "kcompletion")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1538,7 +1538,7 @@ utilities.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0yqci2v0dk5v1mz4n3gca599a7mpihy563zc6sl8hsa30ld8li0f"))))
+                "16br6wnqzndk8v41im23h2ww4hypi2i1qfg6m9c49mpxflgmspbi"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1565,7 +1565,7 @@ integrated it into your application's other widgets.")
 (define-public kcrash
   (package
     (name "kcrash")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1574,7 +1574,7 @@ integrated it into your application's other widgets.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "049y0xdyw37y0qid3d3plj8szfys5gw98j7lhcakiini8mn5cins"))))
+                "0xmr9rrl0xahpnq1rw4bbar1nbr21x2bk4hhv79la6dsg9ha25b3"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -1600,7 +1600,7 @@ application crashes.")
 (define-public kdoctools
   (package
     (name "kdoctools")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1609,7 +1609,7 @@ application crashes.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1bby3avdllch1mji0mxzcix8q5yir5a0i6wpjs5lwckv1glh6kmz"))))
+                "1dmpk453s71ls0q8hgpqqd5dcr7zlimf5wykizcy2wn7p77gzsgl"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -1657,7 +1657,7 @@ from DocBook files.")
 (define-public kfilemetadata
   (package
     (name "kfilemetadata")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1666,7 +1666,7 @@ from DocBook files.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "03wk38q3sq354ykz9dwbgykn73ldf94ryx6hxvpr66bq3a59jmwz"))))
+                "045k1mgn8kg0qfsr5sl1499nzhzmbcvrqc205pmq6sh4r14nvk80"))))
     (build-system cmake-build-system)
     (arguments
      `(#:phases
@@ -1709,7 +1709,7 @@ by applications to write metadata.")
 (define-public kimageformats
   (package
     (name "kimageformats")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1718,7 +1718,7 @@ by applications to write metadata.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1k67yrmszx7azjzrg478rimbz991lghx4d6dmg22p6dknajd78a6"))))
+                "1q7019gbk59fwampna1ayjvw016c0q79hmldpaqh3xa9sh082wy4"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1763,7 +1763,7 @@ formats.")
 (define-public kjobwidgets
   (package
     (name "kjobwidgets")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1772,7 +1772,7 @@ formats.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1m3csdl7wh18ywv5p0qpbjpixvflgjcq3yvk3vlvh0sxxlwcz8k4"))))
+                "04i5cvbxii7n0jr3ai1dh44miqbdkxb6an5w8s7qvkv0xmkml35g"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1791,7 +1791,7 @@ asynchronous jobs.")
 (define-public knotifications
   (package
     (name "knotifications")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1800,7 +1800,7 @@ asynchronous jobs.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0awmwypmd104vhaj2v9k83niflxj26d4mbl6mzfcj75lgka6kffc"))))
+                "10481j2irlqhqd16xi412xbglnyjl0ndanlv9s0d3fxirs95zdd9"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1837,7 +1837,7 @@ covers feedback and persistent events.")
 (define-public kpackage
   (package
     (name "kpackage")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1846,7 +1846,7 @@ covers feedback and persistent events.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "10amhh07x8d0jkyylb19cyzjs71k8dq1y8isfahqzb2kd43vijqa"))))
+                "1xbfjwxb4gff8gg0hs5m9s0jcnzqk27rs2jr71g5ckhvs5psnkcd"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -1875,7 +1875,7 @@ were traditional plugins.")
 (define-public kpty
   (package
     (name "kpty")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1884,7 +1884,7 @@ were traditional plugins.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "07s16zxs03ixy7yxy9fda83yqhcgqzx42gnvwjwkyc8q05njmma6"))))
+                "1pnj07079l6gkz6171fcvljh0dcdy9s77p1q0l9nnkknjbr102pg"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -1912,7 +1912,7 @@ and communicating with them using a pty.")
 (define-public kunitconversion
   (package
     (name "kunitconversion")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1921,7 +1921,7 @@ and communicating with them using a pty.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0219pna4l3vvhyf5acsc87n48jzdnws6kwyhaiy3hy1pzrilv32l"))))
+                "11jnqz218rga3f4ppf1d927c7qhh2qpghwjpsrnrxdkz5nrvnf79"))))
     (build-system cmake-build-system)
     (arguments
      `(#:phases
@@ -1955,7 +1955,7 @@ gallons).")
 (define-public baloo
   (package
     (name "baloo")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1964,7 +1964,7 @@ gallons).")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "18yknkcls1ypsp8n5l254bhlffiq4as5w1wgcjzhnf49cacys8nl"))))
+                "0xj12v0k58sr3snxyj4vx7dqhinrvk6qm0ikymscqgbmw9ijwxph"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kcoreaddons" ,kcoreaddons)
@@ -2019,7 +2019,7 @@ maintaining an index of the contents of your files.")
 (define-public kactivities-stats
   (package
     (name "kactivities-stats")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2028,7 +2028,7 @@ maintaining an index of the contents of your files.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0si70hayf4brr83jzdjdsfvp8nc1sb7vdk0q532liafhf8hw9mq8"))))
+                "129z2m5330j0l1nw8g3qjib60xmx54c6d2g9vnp4w8z0agnihs5f"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -2049,7 +2049,7 @@ by which applications, and what documents have been linked to which activity.")
 (define-public kbookmarks
   (package
     (name "kbookmarks")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2058,7 +2058,7 @@ by which applications, and what documents have been linked to which activity.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "08q413mr5ib04gwnqznvm9vkkfmnh16rgf6rqdvclnci9w7ml5x2"))))
+                "0clmfdcc1fc98q3vbfjf8x140a6df88ixhz0mny3dpv1wcr5cz53"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kwidgetsaddons" ,kwidgetsaddons)))
@@ -2092,7 +2092,7 @@ using the XBEL format.")
 (define-public kcmutils
   (package
     (name "kcmutils")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2101,7 +2101,7 @@ using the XBEL format.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1q67b0m6w3xvm22kq8b0b0rib1jzf25gf6dz7h286987zfbbs5n7"))))
+                "0xv899p9f0hj6hd089mhn910qn66bihzpaa11ikrhbimckw8g19q"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kconfigwidgets" ,kconfigwidgets)
@@ -2131,7 +2131,7 @@ KCModules can be created with the KConfigWidgets framework.")
 (define-public kconfigwidgets
   (package
     (name "kconfigwidgets")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2140,7 +2140,7 @@ KCModules can be created with the KConfigWidgets framework.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "191zm24q2n001b65hcnfh2639k4iqhxwdmgdw29php3n2648xq4z"))))
+                "1nqcrqr67m3kvq2r83x45zcdghk12bas9fp0s43s68imrhy5xikz"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kauth" ,kauth)
@@ -2174,7 +2174,7 @@ their settings.")
 (define-public kdeclarative
   (package
     (name "kdeclarative")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2183,7 +2183,7 @@ their settings.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1w604jy6vg2247vggz0ivl7wy2h5iapkz2z86mah3aw99f7dqa22"))))
+                "0kgawb8wfx4snk2ckwxj0hmpgcvq3k1zpsxqdawi4cmsy4bxzfs9"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kconfig" ,kconfig)
@@ -2237,7 +2237,7 @@ that offer bindings to some of the Frameworks.")
 (define-public kded
   (package
     (name "kded")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2246,7 +2246,7 @@ that offer bindings to some of the Frameworks.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0w25dl4pnvby28gz0yvij32vi9n3p8si4nm4x45j7zsi2cb70j4l"))))
+                "1l6hs3spbs3618jwg3n7r3hrrkqxmmd43f0km8849x4641p72zyc"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -2270,7 +2270,7 @@ started on demand.")
 (define-public kdesignerplugin
   (package
     (name "kdesignerplugin")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2279,7 +2279,7 @@ started on demand.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "004axa1fkj954d65x7l9z8dmw04209hb368rwa4gjzb8naf13ib6"))))
+                "0hj4ng0i22rvw4kl0irhqhww3kvn4c0pncn38w1j5vim4gxv0xcd"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -2321,7 +2321,7 @@ ini-style description files.")
 (define-public kdesu
   (package
     (name "kdesu")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2330,7 +2330,7 @@ ini-style description files.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0402p1h7wifk6sppg7ca9w0zfjllbhc1j5gsxj7ypq55g94np7hx"))))
+                "1gwvby51qqbkrs2vjpnplxr6m6xa5ddfdjs1iygh8kpqsh8a765k"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kpty" ,kpty)))
@@ -2352,7 +2352,7 @@ with su and ssh respectively.")
 (define-public kdewebkit
   (package
     (name "kdewebkit")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2361,7 +2361,7 @@ with su and ssh respectively.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1csd4p996im7ygxc5rfdkzgdpngjgzyqakj12rl9rnfbsd15i8kb"))))
+                "05idyw94ayjh7qdia9pnjmx29r5lsch421kv8h5ivr7ixcbrgk6n"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -2384,7 +2384,7 @@ engine WebKit via QtWebKit.")
 (define-public kemoticons
   (package
     (name "kemoticons")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2393,7 +2393,7 @@ engine WebKit via QtWebKit.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0f6an1bwxnga41a2b35b2pdcni4p0hh76k4jvanl3g046v07f2wr"))))
+                "0mz9hkhnprjbrfq54mqcvj8w87h025785m1bas80brsqzvni5krn"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kservice" ,kservice)))
@@ -2425,7 +2425,7 @@ emoticons coming from different providers.")
 (define-public kglobalaccel
   (package
     (name "kglobalaccel")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2434,7 +2434,7 @@ emoticons coming from different providers.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0nlza73i0qd79yhwhpnvgbh2xa9lvd1n2xg25p3bvfzwidcfdxg6"))))
+                "1fk7wazfwr7smqiym3phm5yvw6cmiczag52y1vad8fgb3izd6zhl"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -2469,7 +2469,7 @@ window does not need focus for them to be activated.")
 (define-public kiconthemes
   (package
     (name "kiconthemes")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2478,7 +2478,7 @@ window does not need focus for them to be activated.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1nbxxpf8bv835xl35b17rk8s3zs110bh31078kqqh7dhvwzlxic7"))))
+                "1f7pk6smi2f0mm7jkrw5ymmkhd9gi8vnmppyblp1v3pvmy571c2m"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -2516,7 +2516,7 @@ in applications using the KDE Frameworks.")
 (define-public kinit
   (package
     (name "kinit")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2525,7 +2525,7 @@ in applications using the KDE Frameworks.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "05vpac41pw1n8y58l2z08vyknzv950x8dxxw66dnymm2v31w07ia"))))
+                "1rq9b59gdgcpvwd694l8h55sqahpdaky0n7ag5psjlfn5myf1d95"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -2563,7 +2563,7 @@ makes starting KDE applications faster and reduces memory consumption.")
 (define-public kio
   (package
     (name "kio")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2572,7 +2572,7 @@ makes starting KDE applications faster and reduces memory consumption.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1526a89x11ank55dp3rfp7xd04w8x7prjg3y6i7n2q9nabwhw7gc"))))
+                "0rrsg3g1b204cdp58vxd5dig1ggwyvk1382p1c86vn6w8qbrq27k"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kbookmarks" ,kbookmarks)
@@ -2655,7 +2655,7 @@ KIO enabled infrastructure.")
 (define-public knewstuff
   (package
     (name "knewstuff")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2664,7 +2664,7 @@ KIO enabled infrastructure.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0i2gmyp67xzf2m5wnv7v574q3gsp1yxfflv1jgl0wy57vchwn9g6"))))
+                "1vhcl2z9rcqg8390l1cwn3yyi1n17pn6mn8fsplp25qhzimb8bmk"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("attica" ,attica)
@@ -2712,7 +2712,7 @@ specification.")
 (define-public knotifyconfig
   (package
     (name "knotifyconfig")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2721,7 +2721,7 @@ specification.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1h07bjj71611v6912m5ajli6qszh9w925zqbk3vih8rn6pd2s3mc"))))
+                "09v4aq5x98sqg2awhw0n0y0rnjkr77kbf51xij0fiykd4llp9lfa"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -2754,7 +2754,7 @@ notifications which can be embedded in your application.")
 (define-public kparts
   (package
     (name "kparts")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2763,7 +2763,7 @@ notifications which can be embedded in your application.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1mb5gp2ckmmrb4ym7cqvyl81wnp7cryk85gmizl7cnn69svlf40h"))))
+                "0zdz0byj0gsbgb007y8x37w8yf1gkw6dsp2s9bbdc4w6h9ipdj2k"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kio" ,kio)
@@ -2807,7 +2807,7 @@ widgets with a user-interface defined in terms of actions.")
 (define-public kpeople
   (package
     (name "kpeople")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2816,7 +2816,7 @@ widgets with a user-interface defined in terms of actions.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "050km3rpx58acx2341si46lxc2hywa59m8rwd849c2dnsxw3w1hm"))))
+                "0i5pd1d2jphsvpc3dpdw28dsdal1qrnnrx3k6qx4wax3f8ph5khv"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -2850,7 +2850,7 @@ to easily extend the contacts collection.")
 (define-public krunner
   (package
     (name "krunner")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2859,7 +2859,7 @@ to easily extend the contacts collection.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0xh9kss67l09am1ilsr9zyx1yhlmaq3g9x60hw0sx7h7wrl6zsw6"))))
+                "02l5gch9hpag1q5ixnb541g7m9lx25pbggldpa8zykp63apyca19"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("plasma-framework" ,plasma-framework)))
@@ -2919,7 +2919,7 @@ typed.")
 (define-public kservice
   (package
     (name "kservice")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2928,7 +2928,7 @@ typed.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0z8zfpd00ndvkm1klp8l4mrcksshhyg280zgmg3gffz5rgh3gwri"))))
+                "1wwb6c6m8f3b16p47adkc05rrlszvvym7ckks5xp08s58pk1dm8z"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kconfig" ,kconfig)
@@ -2964,7 +2964,7 @@ types or handled by application specific code.")
 (define-public ktexteditor
   (package
     (name "ktexteditor")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2973,7 +2973,7 @@ types or handled by application specific code.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "020y3j6vm15sfpiwainr3qsx9i93j15mrvq523wmbmdj1z36yrh2"))))
+                "14iss8svx49vav0h2kg8vhv8g5hg4ky30s7049csfwz7xhp7jmcj"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kparts" ,kparts)))
@@ -3044,7 +3044,7 @@ library.")
 (define-public ktextwidgets
   (package
     (name "ktextwidgets")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -3053,7 +3053,7 @@ library.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "088azbv95ycwxmxxw4l63i2l14fmn8l473pb4djh2mvz1ypfqayk"))))
+                "14gclshmpwmfwkp2hzlnf823pjjmknd9q0gdclsh3yy268c2rsw1"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("ki18n" ,ki18n)
@@ -3091,7 +3091,7 @@ It supports rich text as well as plain text.")
 (define-public kwallet
   (package
     (name "kwallet")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -3100,7 +3100,7 @@ It supports rich text as well as plain text.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1kv3v7593srfn0wd7qp4rhvb30rxp7d2qmlwi0n4nc9s6v59pabn"))))
+                "13bmks9jb3yhp6clv25qkqkrvbhfyk9z16laxsv79jdd82lxgn1z"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -3133,7 +3133,7 @@ the passwords on KDE work spaces.")
 (define-public kxmlgui
   (package
     (name "kxmlgui")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -3142,7 +3142,7 @@ the passwords on KDE work spaces.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0kfxjx8wrhkys5bydnv84nqxc2jqvv92zb2l6zpi0km5ggmia5y0"))))
+                "0wsgs5ya3wnc5cryi1r9i30sq8dnnhh15p02skdjlhwjfvdhxmfa"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kconfig" ,kconfig)
@@ -3185,7 +3185,7 @@ descriptions for integrating actions from plugins.")
 (define-public kxmlrpcclient
   (package
     (name "kxmlrpcclient")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -3194,7 +3194,7 @@ descriptions for integrating actions from plugins.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0ciip27ilsfk9s3gslpbi06v8i6ipdbmcig2jf43z3amsxpq0ncn"))))
+                "0l4jnvn7s77jkvd2z44mz24mfzcw499plms79j21pjryc88drh06"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kio" ,kio)))
@@ -3228,7 +3228,7 @@ setUrl, setUserAgent and call.")
 (define-public plasma-framework
   (package
     (name "plasma-framework")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -3237,7 +3237,7 @@ setUrl, setUserAgent and call.")
                     name "-" version ".tar.xz"))
               (sha256
                (base32
-                "079c8h0lmbkfr3srj5m8a40b50kyrxbgmy1n66329l8js9xrvaah"))))
+                "1yrccbkdpnfbgn7fzpmzzxm5c7fhkv1vqygq1f96r30fia0cj5jv"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kpackage" ,kpackage)
@@ -3324,7 +3324,7 @@ script engines.")
 (define-public kde-frameworkintegration
   (package
     (name "kde-frameworkintegration")
-    (version "5.42.0")
+    (version "5.49.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -3333,7 +3333,7 @@ script engines.")
                     "frameworkintegration-" version ".tar.xz"))
               (sha256
                (base32
-                "17fyny3c5chv7bipr19ayfjmd1amp2nms4ba5r7mwjp97xkphry7"))))
+                "1ni4jrny630zf3zwmqbm8z7dqgiar58992lylfv7kspdg5crcgfx"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
diff --git a/gnu/packages/kde.scm b/gnu/packages/kde.scm
index 1d14e4b820..aa5be6b515 100644
--- a/gnu/packages/kde.scm
+++ b/gnu/packages/kde.scm
@@ -236,7 +236,7 @@ plugins, as well as code to create plugins, or complete applications.")
 (define-public krita
   (package
     (name "krita")
-    (version "4.0.1")
+    (version "4.1.1")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -245,7 +245,7 @@ plugins, as well as code to create plugins, or complete applications.")
                     "/" name "-" version ".tar.gz"))
               (sha256
                (base32
-                "0k55ybvna40dx4fqygnix7bnhjaanak3ckb108hny2k7sspy62pc"))))
+                "1qz9bjvnwa5gc2b0063i2p72jq6y1b6kgqdj39599acp7ws11asw"))))
     (build-system cmake-build-system)
     (arguments
      `(#:tests? #f
@@ -316,7 +316,7 @@ plugins, as well as code to create plugins, or complete applications.")
        ("fftw" ,fftw)
        ("gsl" ,gsl)
        ("poppler-qt5" ,poppler-qt5)
-       ("libraw" ,libraw)
+       ("libraw" ,libraw-0.18)
        ("libtiff" ,libtiff)
        ("perl" ,perl)
        ("ilmbase" ,ilmbase)
@@ -329,23 +329,6 @@ illustrators, matte and texture artists, and the VFX industry.  Notable
 features include brush stabilizers, brush engines and wrap-around mode.")
     (license license:gpl2+)))
 
-;; Krita 3 and 4's file formats are incompatible, so we are keeping Krita 3
-;; for now.
-(define-public krita-3
-  (package
-    (inherit krita)
-    (name "krita")
-    (version "3.3.3")
-    (source (origin
-              (inherit (package-source krita))
-              (uri (string-append
-                    "mirror://kde/stable/krita/"
-                    (version-prefix version 3)
-                    "/" name "-" version ".tar.gz"))
-              (sha256
-               (base32
-                "0pc6hnakkqy81x5b5ncivaps6hqv43i50sjwgi3i3cz9j8rlxh5y"))))))
-
 (define-public kholidays
   (package
     (name "kholidays")
@@ -418,7 +401,7 @@ used in KDE development tools Kompare and KDevelop.")
 (define-public libksysguard
   (package
     (name "libksysguard")
-    (version "5.11.5")
+    (version "5.13.4")
     (source
      (origin
        (method url-fetch)
@@ -426,7 +409,7 @@ used in KDE development tools Kompare and KDevelop.")
                            "/libksysguard-" version ".tar.xz"))
        (sha256
         (base32
-         "0f2py4zkqzpxxf3mqaij0q8ka0v3nschj17dv6rbzzmr5mjv825f"))))
+         "0k8q5bxk9zyv7c3nny1c399v8acqs618nw39q20pj2qdijl9ibvh"))))
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
        ("pkg-config" ,pkg-config)))
@@ -468,7 +451,7 @@ used in KDE development tools Kompare and KDevelop.")
            (lambda _
              ;; TODO: Fix this failing test-case
              (zero? (system* "ctest" "-E" "processtest")))))))
-    (home-page "https://www.kde.org/info/plasma-5.11.5.php")
+    (home-page "https://www.kde.org/info/plasma-5.13.4.php")
     (synopsis "Network enabled task and system monitoring")
     (description "KSysGuard can obtain information on system load and
 manage running processes.  It obtains this information by interacting
diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index 696544c368..14f23db888 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -29,6 +29,7 @@
 ;;; Copyright © 2017 Dave Love <fx@gnu.org>
 ;;; Copyright © 2018 Pierre-Antoine Rouby <pierre-antoine.rouby@inria.fr>
 ;;; Copyright © 2018 Brendan Tildesley <brendan.tildesley@openmailbox.org>
+;;; Copyright © 2018 Manuel Graf <graf@init.at>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -445,8 +446,8 @@ It has been modified to remove all non-free binary blobs.")
                     #:configuration-file kernel-config))
 
 (define-public linux-libre-4.4
-  (make-linux-libre "4.4.152"
-                    "082aajyr363ca95pxlg9iascf5d7k2gbw9ggsbsa1hj6nhspsxw6"
+  (make-linux-libre "4.4.153"
+                    "195vzkkmjiicqfzd38hgf381rlz665rl06abzf8cww0gbnzvrf72"
                     %intel-compatible-systems
                     #:configuration-file kernel-config))
 
@@ -3615,10 +3616,52 @@ The following service daemons are also provided:
            license:cc0               ; most files in ccan/
            license:bsd-3))))         ; providers/hfi1verbs are dual GPL2/BSD-3
 
+(define-public perftest
+  (package
+    (name "perftest")
+    (version "4.2-0.8")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://github.com/linux-rdma/perftest/releases/download/V"
+                           version "/perftest-" version ".g0e24e67.tar.gz"))
+       (sha256
+        (base32 "1r3pxn7cx3grb8myb4q1b0pk447pc06cifd0v7ym13xw00372dlx"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'patch-header-paths
+           (lambda _
+             (substitute* '("src/raw_ethernet_fs_rate.c"
+                            "src/raw_ethernet_resources.c"
+                            "src/raw_ethernet_resources.h"
+                            "src/raw_ethernet_send_burst_lat.c"
+                            "src/raw_ethernet_send_bw.c"
+                            "src/raw_ethernet_send_lat.c")
+               (("/usr/include/netinet/ip.h") "netinet/ip.h"))
+             #t)))))
+    (inputs `(("rdma-core" ,rdma-core)))
+    (home-page "https://github.com/linux-rdma/perftest/")
+    (synopsis "Open Fabrics Enterprise Distribution (OFED) Performance Tests")
+    (description "This is a collection of tests written over uverbs intended for
+use as a performance micro-benchmark. The tests may be used for hardware or
+software tuning as well as for functional testing.
+
+The collection contains a set of bandwidth and latency benchmark such as:
+@enumerate
+@item Send        - @code{ib_send_bw} and @code{ib_send_lat}
+@item RDMA Read   - @code{ib_read_bw} and @code{ib_read_lat}
+@item RDMA Write  - @code{ib_write_bw} and @code{ib_wriet_lat}
+@item RDMA Atomic - @code{ib_atomic_bw} and @code{ib_atomic_lat}
+@item Native Ethernet (when working with MOFED2) - @code{raw_ethernet_bw}, @code{raw_ethernet_lat}
+@end enumerate")
+    (license license:gpl2)))
+
 (define-public rng-tools
   (package
     (name "rng-tools")
-    (version "6.3.1")
+    (version "6.4")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/nhorman/rng-tools/"
@@ -3626,7 +3669,7 @@ The following service daemons are also provided:
               (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "04p7wvcm389s21y9mq8ss6z2szxi4nfrfixzwqjkq2qciz705i4s"))))
+                "005krksl8iz37l5p1nx8apl1yg7q78yrsb6inby31d2g5ck8nnwa"))))
     (build-system gnu-build-system)
     (arguments
      `(;; Avoid using OpenSSL, curl, and libxml2, reducing the closure by 166 MiB.
diff --git a/gnu/packages/llvm.scm b/gnu/packages/llvm.scm
index add7f1b40c..cd710bcb79 100644
--- a/gnu/packages/llvm.scm
+++ b/gnu/packages/llvm.scm
@@ -3,7 +3,7 @@
 ;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2015, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016 Dennis Mungai <dmngaie@gmail.com>
-;;; Copyright © 2016 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2016, 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2017 Roel Janssen <roel@gnu.org>
 ;;; Copyright © 2018 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
@@ -30,6 +30,7 @@
   #:use-module (guix utils)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system cmake)
+  #:use-module (guix build-system python)
   #:use-module (gnu packages)
   #:use-module (gnu packages gcc)
   #:use-module (gnu packages bootstrap)           ;glibc-dynamic-linker
@@ -380,3 +381,53 @@ code analysis tools.")
        (patches (list (search-patch "llvm-for-extempore.patch")))))
     ;; Extempore refuses to build on architectures other than x86_64
     (supported-systems '("x86_64-linux"))))
+
+(define-public python-llvmlite
+  (package
+    (name "python-llvmlite")
+    (version "0.24.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "llvmlite" version))
+       (sha256
+        (base32
+         "01zwjlc3c5mhrwmv4b73zgbskwqps9ly0nrh54bbj1f1l72f839j"))))
+    (build-system python-build-system)
+    (inputs
+     `(("llvm"
+        ,(package
+           (inherit llvm)
+           (source (origin
+                     (inherit (package-source llvm))
+                     (patches
+                      (list
+                       (origin
+                         (method url-fetch)
+                         (uri (string-append "https://raw.githubusercontent.com/numba/"
+                                             "llvmlite/v" version "/conda-recipes/"
+                                             "D47188-svml.patch"))
+                         (sha256
+                          (base32
+                           "0mrj24jvkv3hjcmyg98zmvmyl1znlh2j63rdr69f6g7s96d2pfv1")))
+                       (origin
+                         (method url-fetch)
+                         (uri (string-append "https://raw.githubusercontent.com/numba/"
+                                             "llvmlite/v" version "/conda-recipes/"
+                                             "twine_cfg_undefined_behavior.patch"))
+                         (sha256
+                          (base32
+                           "07h71n2m1mn9zcfgw04zglffknplb233zqbcd6pckq0wygkrxflp")))
+                       (origin
+                         (method url-fetch)
+                         (uri (string-append "https://raw.githubusercontent.com/numba/"
+                                             "llvmlite/v" version "/conda-recipes/"
+                                             "0001-Transforms-Add-missing-header-for-InstructionCombini.patch"))
+                         (sha256
+                          (base32
+                           "1pp0z9696l6j4dwz7ypjrm4vvkj0d3mlf1g8zmiyk08akw5lz0cb")))))))))))
+    (home-page "http://llvmlite.pydata.org")
+    (synopsis "Wrapper around basic LLVM functionality")
+    (description
+     "This package provides a Python binding to LLVM for use in Numba.")
+    (license license:bsd-3)))
diff --git a/gnu/packages/lxde.scm b/gnu/packages/lxde.scm
index 9a0d8e957d..19938fa93c 100644
--- a/gnu/packages/lxde.scm
+++ b/gnu/packages/lxde.scm
@@ -5,6 +5,8 @@
 ;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;; Copyright © 2017 Brendan Tildesley <brendan.tildesley@openmailbox.org>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2018 Ison111 <ison111@protonmail.com>
+;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -24,17 +26,21 @@
 (define-module (gnu packages lxde)
   #:use-module (gnu packages)
   #:use-module (gnu packages autotools)
+  #:use-module (gnu packages bash)
   #:use-module (gnu packages docbook)
+  #:use-module (gnu packages freedesktop)
   #:use-module (gnu packages gettext)
   #:use-module (gnu packages glib)
   #:use-module (gnu packages gnome)
   #:use-module (gnu packages gtk)
   #:use-module (gnu packages image-viewers)
   #:use-module (gnu packages linux)
+  #:use-module (gnu packages lsof)
   #:use-module (gnu packages openbox)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages polkit)
   #:use-module (gnu packages text-editors)
+  #:use-module (gnu packages video)
   #:use-module (gnu packages wm)
   #:use-module (gnu packages xml)
   #:use-module (gnu packages xorg)
@@ -230,6 +236,48 @@ with freedesktop.org standard.")
     (home-page "https://lxde.org")
     (license license:gpl2+)))
 
+(define-public spacefm
+  ;; SpaceFM is based on PCManFM.
+  (package
+    (name "spacefm")
+    (version "1.0.6")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "https://github.com/IgnorantGuru/spacefm/archive/"
+                    version ".tar.gz"))
+              (sha256
+                (base32
+                  "1jg7xfyr7kihjnalxp8wxyb9qjk8hqf5l36rp3s0lvkpmpyakppy"))
+              (file-name (string-append name "-" version ".tar.gz"))))
+    (build-system gnu-build-system)
+    (native-inputs `(("pkg-config" ,pkg-config)
+                     ("intltool" ,intltool)))
+    (inputs `(("bash" ,bash)
+              ("gtk+" ,gtk+)
+              ("eudev" ,eudev)
+              ("desktop-file-utils" ,desktop-file-utils)
+              ("shared-mime-info" ,shared-mime-info)
+              ("ffmpegthumbnailer" ,ffmpegthumbnailer)
+              ("jmtpfs" ,jmtpfs)
+              ("lsof" ,lsof)
+              ("udisks" ,udisks)))
+    (arguments
+     `(#:configure-flags (list (string-append "--with-bash-path="
+                                              (assoc-ref %build-inputs "bash")
+                                              "/bin/bash")
+                               (string-append "--sysconfdir="
+                                              (assoc-ref %outputs "out")
+                                              "/etc"))))
+    (home-page "http://ignorantguru.github.io/spacefm/")
+    (synopsis "Multi-panel tabbed file manager")
+    (description "SpaceFM is a graphical, multi-panel, tabbed file manager
+based on PCManFM with built-in virtual file system, udev-based device manager,
+customizable menu system, and Bash integration.")
+
+    ;; The combination is GPLv3+ but src/exo is under LGPLv3+.
+    (license license:gpl3+)))
+
 (define-public lxmenu-data
   (package
     (name "lxmenu-data")
diff --git a/gnu/packages/mail.scm b/gnu/packages/mail.scm
index d1c1c096e5..4944dd7622 100644
--- a/gnu/packages/mail.scm
+++ b/gnu/packages/mail.scm
@@ -706,9 +706,9 @@ attachments, create new maildirs, and so on.")
        ("python2-pygpgme" ,python2-pygpgme)
        ("python2-notmuch" ,python2-notmuch)))
     (home-page "https://github.com/pazz/alot")
-    (synopsis "Commandline MUA using notmuch")
+    (synopsis "Command-line MUA using @code{notmuch}")
     (description
-     "Alot is an experimental terminal mail user agent (MUA) based on
+     "Alot is an experimental terminal mail user agent (@dfn{MUA}) based on
 @code{notmuch} mail.  It is written in Python using the @code{urwid} toolkit.")
     (license gpl3+)))
 
@@ -1011,7 +1011,7 @@ compresses it.")
 (define-public claws-mail
   (package
     (name "claws-mail")
-    (version "3.17.0")
+    (version "3.17.1")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1019,7 +1019,7 @@ compresses it.")
                     ".tar.xz"))
               (sha256
                (base32
-                "119y6q9p8zwm2xqlbkgqd119a529kjqlyldmb4h940z6c2qyjhqm"))))
+                "1wknxbwyzm5xjh3cqmddcxmvp1rkp301qga5n5rgfi7vcd0myyvm"))))
     (build-system gnu-build-system)
     (native-inputs `(("pkg-config" ,pkg-config)))
     (inputs `(("bogofilter" ,bogofilter)
@@ -2596,3 +2596,29 @@ processes mailboxes based on the results.  It can be used to delete, copy,
 move, flag, etc. messages residing in mailboxes at the same or different mail
 servers.  The 4rev1 and 4 versions of IMAP are supported.")
     (license license:expat)))
+
+(define-public urlscan
+  (package
+    (name "urlscan")
+    (version "0.9.0")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (pypi-uri "urlscan" version))
+        (sha256
+         (base32
+          "133f28bisr4xj0nihpwpil8dyadss62mp8qgqdyzd676hg9xjfyc"))))
+    (build-system python-build-system)
+    (propagated-inputs
+     `(("python-urwid" ,python-urwid)))
+    (home-page "https://github.com/firecat53/urlscan")
+    (synopsis "View/select the URLs in an email message or file")
+    (description
+     "Urlscan is a small program that is designed to integrate with the
+@code{mutt} mailreader to allow you to easily launch a Web browser for URLs
+contained in email messages.  It parses an email message or file and scans it
+for URLs and email addresses.  It then displays the URLs and their context
+within the message, and allows you to choose one or more URLs to send to your
+Web browser.  Alternatively, it send a list of all URLs to stdout.  It is a
+replacement for the @code{urlview} program.")
+    (license gpl2)))
diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index 3d571e8cc9..50c0a320e0 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -459,7 +459,7 @@ computing convex hulls.")
 (define-public arpack-ng
   (package
     (name "arpack-ng")
-    (version "3.5.0")
+    (version "3.6.2")
     (home-page "https://github.com/opencollab/arpack-ng")
     (source
      (origin
@@ -468,13 +468,8 @@ computing convex hulls.")
        (file-name (string-append name "-" version ".tar.gz"))
        (sha256
         (base32
-         "0f8jx3fifmj9qdp289zr7r651y1q48k1jya859rqxq62mvis7xsh"))))
+         "16jrvdl0gh78rrfnvrcxwys4slwfh6qmwwjhfc9d6vwrvq184g37"))))
     (build-system gnu-build-system)
-    (arguments
-     '(#:phases (modify-phases %standard-phases
-                  (add-after 'unpack 'autoreconf
-                    (lambda _
-                      (invoke "autoreconf" "-vfi"))))))
     (native-inputs
      `(("autoconf" ,autoconf)
        ("automake" ,automake)
@@ -2049,12 +2044,12 @@ programming problems.")
 (define-public r-pracma
   (package
     (name "r-pracma")
-    (version "2.1.4")
+    (version "2.1.5")
     (source (origin
       (method url-fetch)
       (uri (cran-uri "pracma" version))
       (sha256
-        (base32 "1ygm81i7mqvh229dp9935djjyb120p3bqvaf4k572sa4q63fzjhc"))))
+        (base32 "18cv7c2gvagbmggfbsy2xk9bpn47izd0qrmqnc3q7afvj6pr6nf9"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-quadprog" ,r-quadprog)))
@@ -3517,7 +3512,7 @@ set.")
 (define-public hypre
   (package
     (name "hypre")
-    (version "2.11.0")
+    (version "2.14.0")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/LLNL/hypre/archive/"
@@ -3525,7 +3520,7 @@ set.")
               (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "0q69ia0jivzcr8p049dn3mg8yjpn6nwq4sw9iqac8vr63vi54l6m"))
+                "0v515i73bvaz378h5465b1dy9v2gf924zy2q94cpq4qqarawvkqh"))
               (modules '((guix build utils)))
               (snippet
                '(begin
@@ -3533,7 +3528,7 @@ set.")
                   ;; substitute the tarball creation time.
                   (substitute* "src/utilities/HYPRE_utilities.h"
                     (("Date Compiled: .*$")
-                     "Date Compiled: Mar 28 2016 20:19:59 +0000\"\n"))
+                     "Date Compiled: Apr 11 2018 16:24:59 +0000\"\n"))
                   #t))))
     (build-system gnu-build-system)
     (outputs '("out"                    ;6.1 MiB of headers and libraries
diff --git a/gnu/packages/messaging.scm b/gnu/packages/messaging.scm
index b03cb8f03a..42a0847b7a 100644
--- a/gnu/packages/messaging.scm
+++ b/gnu/packages/messaging.scm
@@ -548,14 +548,14 @@ simultaneously and therefore appear under the same nickname on IRC.")
 (define-public python-nbxmpp
   (package
     (name "python-nbxmpp")
-    (version "0.6.6")
+    (version "0.6.7")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "nbxmpp" version))
        (sha256
         (base32
-         "0bp60syqc3qp2i28phvadxlpwizjbr6bxw4m363p9yn5fl687qnh"))))
+         "0fas4iawjfdmkz8vr042wpq6b2qispi6fy35g4a62jw50jb1saav"))))
     (build-system python-build-system)
     (arguments
      `(#:tests? #f))                    ; no tests
@@ -873,7 +873,7 @@ protocols.")
 (define-public c-toxcore
   (package
     (name "c-toxcore")
-    (version "0.2.6")
+    (version "0.2.7")
     (source
      (origin
        (method url-fetch)
@@ -882,7 +882,7 @@ protocols.")
        (file-name (string-append name "-" version ".tar.gz"))
        (sha256
         (base32
-         "04b3ifkj64yy06vph0hlq24mw9fh24zmq1qdf40fmj24vvgfmjpl"))))
+         "1lcw979zakyb5kzy8yfk87js3bzfz3k2jxidda6ga6ljdnqdpxmy"))))
     (arguments
      `(#:tests? #f)) ; FIXME: Testsuite seems to stay stuck on test 3. Disable
                      ; for now.
@@ -1565,7 +1565,7 @@ using ncurses and libmesode, inspired by Irssi.")
 (define-public libircclient
   (package
     (name "libircclient")
-    (version "1.9")
+    (version "1.10")
     (source
      (origin
        (method url-fetch)
@@ -1573,7 +1573,7 @@ using ncurses and libmesode, inspired by Irssi.")
                            version "/libircclient-" version ".tar.gz"))
        (sha256
         (base32
-         "0r60i76jh4drjh2jgp5sx71chagqllmkaq49zv67nrhqwvp9ghw1"))))
+         "0b9wa0h3xc31wpqlvgxgnvqp5wgx3kwsf5s9432m5cj8ycx6zcmv"))))
     (build-system gnu-build-system)
     (inputs
      `(("openssl" ,openssl)))
@@ -1584,8 +1584,7 @@ using ncurses and libmesode, inspired by Irssi.")
              "--enable-shared"
              "--enable-ipv6"
              "--enable-openssl")
-       ;; no test suite
-       #:tests? #f))
+       #:tests? #f))                    ; no test suite
     (home-page "https://www.ulduzsoft.com/libircclient/")
     (synopsis "Library implementing the client IRC protocol")
     (description "Libircclient is a library which implements the client IRC
diff --git a/gnu/packages/monitoring.scm b/gnu/packages/monitoring.scm
index fae62d5493..12d736a76a 100644
--- a/gnu/packages/monitoring.scm
+++ b/gnu/packages/monitoring.scm
@@ -4,6 +4,7 @@
 ;;; Copyright © 2017, 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018 Gábor Boskovits <boskovits@gmail.com>
+;;; Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -29,18 +30,25 @@
   #:use-module (guix build-system python)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system go)
+  #:use-module (guix utils)
   #:use-module (gnu packages admin)
   #:use-module (gnu packages base)
+  #:use-module (gnu packages curl)
   #:use-module (gnu packages check)
   #:use-module (gnu packages compression)
+  #:use-module (gnu packages databases)
   #:use-module (gnu packages django)
   #:use-module (gnu packages gd)
   #:use-module (gnu packages image)
   #:use-module (gnu packages mail)
+  #:use-module (gnu packages networking)
+  #:use-module (gnu packages libevent)
+  #:use-module (gnu packages pcre)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages python)
   #:use-module (gnu packages python-web)
-  #:use-module (gnu packages time))
+  #:use-module (gnu packages time)
+  #:use-module (gnu packages tls))
 
 (define-public nagios
   (package
@@ -138,6 +146,79 @@ etc. via a Web interface.  Features include:
 @end itemize\n")
     (license license:gpl2)))
 
+(define-public zabbix-agentd
+  (package
+    (name "zabbix-agentd")
+    (version "3.4.11")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "mirror://sourceforge/zabbix/ZABBIX%20Latest%20Stable/" version
+             "/zabbix-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0qxgf6hx7ibhjmxd2sxizkjc8df4c9d31wz5hhql409ws98qf173"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:configure-flags
+       (list "--enable-agent"
+             (string-append "--with-iconv="
+                            (assoc-ref %build-inputs "libiconv"))
+             (string-append "--with-libpcre="
+                            (assoc-ref %build-inputs "pcre")))))
+    (inputs
+     `(("libiconv" ,libiconv)
+       ("pcre" ,pcre)))
+    (home-page "https://www.zabbix.com/")
+    (synopsis "Distributed monitoring solution (client-side agent)")
+    (description "This package provides a distributed monitoring
+solution (client-side agent)")
+    (license license:gpl2)))
+
+(define-public zabbix-server
+  (package
+    (inherit zabbix-agentd)
+    (name "zabbix-server")
+    (arguments
+     (substitute-keyword-arguments
+         `(#:phases
+           (modify-phases %standard-phases
+             (add-after 'install 'install-frontend
+               (lambda* (#:key outputs #:allow-other-keys)
+                 (let* ((php (string-append (assoc-ref outputs "out")
+                                            "/share/zabbix/php"))
+                        (front-end-conf (string-append php "/conf"))
+                        (etc (string-append php "/etc")))
+                   (mkdir-p php)
+                   (copy-recursively "./frontends/php" php)
+                   (rename-file front-end-conf
+                                (string-append front-end-conf "-example"))
+                   (symlink "/etc/zabbix" front-end-conf)))))
+           ,@(package-arguments zabbix-agentd))
+       ((#:configure-flags flags)
+        `(cons* "--enable-server"
+                "--with-postgresql"
+                (string-append "--with-libevent="
+                               (assoc-ref %build-inputs "libevent"))
+                "--with-net-snmp"
+                (string-append "--with-gnutls="
+                               (assoc-ref %build-inputs "gnutls"))
+                "--with-libcurl"
+                ,flags))))
+    (inputs
+     `(("curl" ,curl)
+       ("libevent" ,libevent)
+       ("gnutls" ,gnutls)
+       ("postgresql" ,postgresql)
+       ("zlib" ,zlib)
+       ("net-snmp" ,net-snmp)
+       ("curl" ,curl)
+       ,@(package-inputs zabbix-agentd)))
+    (synopsis "Distributed monitoring solution (server-side)")
+    (description "This package provides a distributed monitoring
+solution (server-side)")))
+
 (define-public darkstat
   (package
     (name "darkstat")
diff --git a/gnu/packages/music.scm b/gnu/packages/music.scm
index edffcfce96..ba21e5da2b 100644
--- a/gnu/packages/music.scm
+++ b/gnu/packages/music.scm
@@ -3685,7 +3685,7 @@ specification and header.")
 (define-public rosegarden
   (package
     (name "rosegarden")
-    (version "17.04")
+    (version "18.06")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -3693,7 +3693,7 @@ specification and header.")
                     version "/rosegarden-" version ".tar.bz2"))
               (sha256
                (base32
-                "1khfcj22asdhjh0jvhkqsz200wgmigkhsrcz09ffia5hqm0n32lq"))))
+                "04qc80sqb2ji42pq3mayhvqqn39hlxzymsywpbpzfpchr19chxx7"))))
     (build-system cmake-build-system)
     (arguments
      `(#:configure-flags '("-DUSE_QT5=1") ; "-DCMAKE_BUILD_TYPE=Release"
@@ -3747,6 +3747,7 @@ specification and header.")
              ;; Tests create files in $HOME/.local/share/rosegarden .
              (mkdir-p "/tmp/foo")
              (setenv "HOME" "/tmp/foo")
+             (setenv "XDG_RUNTIME_DIR" "/tmp/foo")
              #t)))))
     (inputs
      `(("alsa-lib" ,alsa-lib)
@@ -3773,7 +3774,7 @@ sequencer")
     (description "Rosegarden is a music composition and editing environment
 based around a MIDI sequencer that features a rich understanding of music
 notation and includes basic support for digital audio.")
-    (home-page "http://www.rosegardenmusic.com/")
+    (home-page "https://www.rosegardenmusic.com/")
     (license license:gpl2)))
 
 (define-public patchmatrix
diff --git a/gnu/packages/networking.scm b/gnu/packages/networking.scm
index 943bcecb86..61c0ad7fba 100644
--- a/gnu/packages/networking.scm
+++ b/gnu/packages/networking.scm
@@ -2013,7 +2013,9 @@ Features:
        (list (string-append "LDFLAGS=-Wl,-rpath="
                             (assoc-ref %outputs "out")
                             "/lib")
-             "--with-logfile=/var/log/snmpd.log")
+             "--with-logfile=/var/log/snmpd.log"
+             (string-append "--with-openssl="
+                            (assoc-ref %build-inputs "openssl")))
        #:phases
        (modify-phases %standard-phases
          (add-after 'unpack 'patch-tests
diff --git a/gnu/packages/opencl.scm b/gnu/packages/opencl.scm
index 42cedd1544..d32e696438 100644
--- a/gnu/packages/opencl.scm
+++ b/gnu/packages/opencl.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2018 Fis Trivial <ybbs.daans@hotmail.com>
+;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -57,7 +58,7 @@
                 (uri (git-reference
                       (url "https://github.com/KhronosGroup/OpenCL-Headers.git")
                       (commit commit)))
-                (file-name (string-append name "-" commit))
+                (file-name (git-file-name name version))
                 (sha256
                  (base32
                   "176ydpbyws5nr4av6hf8p41pkhc0rc4m4vrah9w6gp2fw2i32838"))))
@@ -102,15 +103,15 @@ programming.")
   (package
     (name "opencl-clhpp")
     (version "2.0.10")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append
-                    "https://github.com/KhronosGroup/OpenCL-CLHPP/archive/v"
-                    version ".tar.gz"))
-              (sha256
-               (base32
-                "0awg6yznbz3h285kmnd47fykx2qa34a07sr4x1657yn3jmi4a9zs"))
-              (file-name (string-append name "-" version ".tar.gz"))))
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/KhronosGroup/OpenCL-CLHPP.git")
+             (commit (string-append "v" version))))
+       (sha256
+        (base32 "0h5kpg5cl8wzfnqmv6i26aig2apv06ffm9p3rh35938n9r8rladm"))
+       (file-name (git-file-name name version))))
     (native-inputs
      `(("python" ,python-wrapper)))
     (propagated-inputs
@@ -124,7 +125,7 @@ programming.")
           (string-append "-DCMAKE_INSTALL_PREFIX="
                          (assoc-ref %outputs "out")
                          "/include")))
-       ;; regression tests requires a lot more dependencies
+       ;; The regression tests require a lot more dependencies.
        #:tests? #f))
     (build-system cmake-build-system)
     (home-page "http://github.khronos.org/OpenCL-CLHPP/")
@@ -174,15 +175,15 @@ Loader as provided by this package.")
   (package
     (name "clinfo")
     (version "2.2.18.04.06")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append
-                    "https://github.com/Oblomov/clinfo/archive/"
-                    version ".tar.gz"))
-              (file-name (string-append name "-" version ".tar.gz"))
-              (sha256
-               (base32
-                "0v7cy01irwdgns6lzaprkmm0502pp5a24zhhffydxz1sgfjj2w7p"))))
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/Oblomov/clinfo.git")
+             (commit version)))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "0y2q0lz5yzxy970b7w7340vp4fl25vndahsyvvrywcrn51ipgplx"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("opencl-headers" ,opencl-headers)))
@@ -216,22 +217,21 @@ the system.")
   (package
     (name "beignet")
     (version "1.3.2")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append
-                    "https://github.com/intel/beignet/archive/Release_v"
-                    version
-                    ".tar.gz"))
-              (file-name (string-append name "-" version ".tar.gz"))
-              (sha256
-               (base32
-                "18r0lq3dkd4yn6bxa45s2lrr9cjbg70nr2nn6xablvgqwzw0jb0r"))
-              (patches (search-patches "beignet-correct-file-names.patch"))
-              (modules '((guix build utils)))
-              (snippet
-               ;; There's a suspicious .isa binary file under kernels/.
-               ;; Remove it.
-               '(for-each delete-file (find-files "." "\\.isa$")))))
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/intel/beignet.git")
+             (commit (string-append "Release_v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "0lpv3lvi2vrmzb8blflrpbd3jgin76zqmz6jcv17vn9mylqdrfnd"))
+       (patches (search-patches "beignet-correct-file-names.patch"))
+       (modules '((guix build utils)))
+       (snippet
+        ;; There's a suspicious .isa binary file under kernels/.
+        ;; Remove it.
+        '(for-each delete-file (find-files "." "\\.isa$")))))
     (native-inputs `(("pkg-config" ,pkg-config)
                      ("python" ,python)))
     (inputs `(("clang@3.7" ,clang-3.7)
@@ -295,15 +295,15 @@ back-end for the LLVM compiler framework.")
   (package
     (name "pocl")
     (version "1.1")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append
-                    "https://github.com/pocl/pocl/archive/v"
-                    version ".tar.gz"))
-              (file-name (string-append name "-" version ".tar.gz"))
-              (sha256
-               (base32
-                "0lrw3hlb0w53xzmrf2hvbda406l70ar4gyadflvlkj4879lx138y"))))
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/pocl/pocl.git")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "1z3sqn20ddv1030adchpzs65qng436gc2mb99p213mkh95jkh1l5"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("libltdl" ,libltdl)
@@ -323,12 +323,6 @@ back-end for the LLVM compiler framework.")
                             (assoc-ref %build-inputs "libc") "/lib"))
        #:phases
        (modify-phases %standard-phases
-         (add-after 'install 'remove-headers
-           (lambda* (#:key outputs #:allow-other-keys)
-             (let ((out (assoc-ref outputs "out")))
-               (delete-file-recursively
-                (string-append out "/include"))
-               #t)))
          (add-before 'check 'set-HOME
            (lambda _
              (setenv "HOME" "/tmp")
diff --git a/gnu/packages/patches/dropbear-CVE-2018-15599.patch b/gnu/packages/patches/dropbear-CVE-2018-15599.patch
new file mode 100644
index 0000000000..a474552cd2
--- /dev/null
+++ b/gnu/packages/patches/dropbear-CVE-2018-15599.patch
@@ -0,0 +1,240 @@
+Fix CVE-2018-15599:
+
+http://lists.ucc.gu.uwa.edu.au/pipermail/dropbear/2018q3/002108.html
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15599
+
+Patch copied from upstream source repository:
+
+https://github.com/mkj/dropbear/commit/52adbb34c32d3e2e1bcdb941e20a6f81138b8248
+
+From 52adbb34c32d3e2e1bcdb941e20a6f81138b8248 Mon Sep 17 00:00:00 2001
+From: Matt Johnston <matt@ucc.asn.au>
+Date: Thu, 23 Aug 2018 23:43:12 +0800
+Subject: [PATCH] Wait to fail invalid usernames
+
+---
+ auth.h           |  6 +++---
+ svr-auth.c       | 19 +++++--------------
+ svr-authpam.c    | 26 ++++++++++++++++++++++----
+ svr-authpasswd.c | 27 ++++++++++++++-------------
+ svr-authpubkey.c | 11 ++++++++++-
+ 5 files changed, 54 insertions(+), 35 deletions(-)
+
+diff --git a/auth.h b/auth.h
+index da498f5b..98f54683 100644
+--- a/auth.h
++++ b/auth.h
+@@ -37,9 +37,9 @@ void recv_msg_userauth_request(void);
+ void send_msg_userauth_failure(int partial, int incrfail);
+ void send_msg_userauth_success(void);
+ void send_msg_userauth_banner(const buffer *msg);
+-void svr_auth_password(void);
+-void svr_auth_pubkey(void);
+-void svr_auth_pam(void);
++void svr_auth_password(int valid_user);
++void svr_auth_pubkey(int valid_user);
++void svr_auth_pam(int valid_user);
+ 
+ #if DROPBEAR_SVR_PUBKEY_OPTIONS_BUILT
+ int svr_pubkey_allows_agentfwd(void);
+diff --git a/svr-auth.c b/svr-auth.c
+index c19c0901..edde86bc 100644
+--- a/svr-auth.c
++++ b/svr-auth.c
+@@ -149,10 +149,8 @@ void recv_msg_userauth_request() {
+ 		if (methodlen == AUTH_METHOD_PASSWORD_LEN &&
+ 				strncmp(methodname, AUTH_METHOD_PASSWORD,
+ 					AUTH_METHOD_PASSWORD_LEN) == 0) {
+-			if (valid_user) {
+-				svr_auth_password();
+-				goto out;
+-			}
++			svr_auth_password(valid_user);
++			goto out;
+ 		}
+ 	}
+ #endif
+@@ -164,10 +162,8 @@ void recv_msg_userauth_request() {
+ 		if (methodlen == AUTH_METHOD_PASSWORD_LEN &&
+ 				strncmp(methodname, AUTH_METHOD_PASSWORD,
+ 					AUTH_METHOD_PASSWORD_LEN) == 0) {
+-			if (valid_user) {
+-				svr_auth_pam();
+-				goto out;
+-			}
++			svr_auth_pam(valid_user);
++			goto out;
+ 		}
+ 	}
+ #endif
+@@ -177,12 +173,7 @@ void recv_msg_userauth_request() {
+ 	if (methodlen == AUTH_METHOD_PUBKEY_LEN &&
+ 			strncmp(methodname, AUTH_METHOD_PUBKEY,
+ 				AUTH_METHOD_PUBKEY_LEN) == 0) {
+-		if (valid_user) {
+-			svr_auth_pubkey();
+-		} else {
+-			/* pubkey has no failure delay */
+-			send_msg_userauth_failure(0, 0);
+-		}
++		svr_auth_pubkey(valid_user);
+ 		goto out;
+ 	}
+ #endif
+diff --git a/svr-authpam.c b/svr-authpam.c
+index 05e4f3e5..d201bc96 100644
+--- a/svr-authpam.c
++++ b/svr-authpam.c
+@@ -178,13 +178,14 @@ pamConvFunc(int num_msg,
+  * Keyboard interactive would be a lot nicer, but since PAM is synchronous, it
+  * gets very messy trying to send the interactive challenges, and read the
+  * interactive responses, over the network. */
+-void svr_auth_pam() {
++void svr_auth_pam(int valid_user) {
+ 
+ 	struct UserDataS userData = {NULL, NULL};
+ 	struct pam_conv pamConv = {
+ 		pamConvFunc,
+ 		&userData /* submitted to pamvConvFunc as appdata_ptr */ 
+ 	};
++	const char* printable_user = NULL;
+ 
+ 	pam_handle_t* pamHandlep = NULL;
+ 
+@@ -204,12 +205,23 @@ void svr_auth_pam() {
+ 
+ 	password = buf_getstring(ses.payload, &passwordlen);
+ 
++	/* We run the PAM conversation regardless of whether the username is valid
++	in case the conversation function has an inherent delay.
++	Use ses.authstate.username rather than ses.authstate.pw_name.
++	After PAM succeeds we then check the valid_user flag too */
++
+ 	/* used to pass data to the PAM conversation function - don't bother with
+ 	 * strdup() etc since these are touched only by our own conversation
+ 	 * function (above) which takes care of it */
+-	userData.user = ses.authstate.pw_name;
++	userData.user = ses.authstate.username;
+ 	userData.passwd = password;
+ 
++	if (ses.authstate.pw_name) {
++		printable_user = ses.authstate.pw_name;
++	} else {
++		printable_user = "<invalid username>";
++	}
++
+ 	/* Init pam */
+ 	if ((rc = pam_start("sshd", NULL, &pamConv, &pamHandlep)) != PAM_SUCCESS) {
+ 		dropbear_log(LOG_WARNING, "pam_start() failed, rc=%d, %s", 
+@@ -242,7 +254,7 @@ void svr_auth_pam() {
+ 				rc, pam_strerror(pamHandlep, rc));
+ 		dropbear_log(LOG_WARNING,
+ 				"Bad PAM password attempt for '%s' from %s",
+-				ses.authstate.pw_name,
++				printable_user,
+ 				svr_ses.addrstring);
+ 		send_msg_userauth_failure(0, 1);
+ 		goto cleanup;
+@@ -253,12 +265,18 @@ void svr_auth_pam() {
+ 				rc, pam_strerror(pamHandlep, rc));
+ 		dropbear_log(LOG_WARNING,
+ 				"Bad PAM password attempt for '%s' from %s",
+-				ses.authstate.pw_name,
++				printable_user,
+ 				svr_ses.addrstring);
+ 		send_msg_userauth_failure(0, 1);
+ 		goto cleanup;
+ 	}
+ 
++	if (!valid_user) {
++		/* PAM auth succeeded but the username isn't allowed in for another reason
++		(checkusername() failed) */
++		send_msg_userauth_failure(0, 1);
++	}
++
+ 	/* successful authentication */
+ 	dropbear_log(LOG_NOTICE, "PAM password auth succeeded for '%s' from %s",
+ 			ses.authstate.pw_name,
+diff --git a/svr-authpasswd.c b/svr-authpasswd.c
+index bdee2aa1..69c7d8af 100644
+--- a/svr-authpasswd.c
++++ b/svr-authpasswd.c
+@@ -48,22 +48,14 @@ static int constant_time_strcmp(const char* a, const char* b) {
+ 
+ /* Process a password auth request, sending success or failure messages as
+  * appropriate */
+-void svr_auth_password() {
++void svr_auth_password(int valid_user) {
+ 	
+ 	char * passwdcrypt = NULL; /* the crypt from /etc/passwd or /etc/shadow */
+ 	char * testcrypt = NULL; /* crypt generated from the user's password sent */
+-	char * password;
++	char * password = NULL;
+ 	unsigned int passwordlen;
+-
+ 	unsigned int changepw;
+ 
+-	passwdcrypt = ses.authstate.pw_passwd;
+-
+-#ifdef DEBUG_HACKCRYPT
+-	/* debugging crypt for non-root testing with shadows */
+-	passwdcrypt = DEBUG_HACKCRYPT;
+-#endif
+-
+ 	/* check if client wants to change password */
+ 	changepw = buf_getbool(ses.payload);
+ 	if (changepw) {
+@@ -73,12 +65,21 @@ void svr_auth_password() {
+ 	}
+ 
+ 	password = buf_getstring(ses.payload, &passwordlen);
+-
+-	/* the first bytes of passwdcrypt are the salt */
+-	testcrypt = crypt(password, passwdcrypt);
++	if (valid_user) {
++		/* the first bytes of passwdcrypt are the salt */
++		passwdcrypt = ses.authstate.pw_passwd;
++		testcrypt = crypt(password, passwdcrypt);
++	}
+ 	m_burn(password, passwordlen);
+ 	m_free(password);
+ 
++	/* After we have got the payload contents we can exit if the username
++	is invalid. Invalid users have already been logged. */
++	if (!valid_user) {
++		send_msg_userauth_failure(0, 1);
++		return;
++	}
++
+ 	if (testcrypt == NULL) {
+ 		/* crypt() with an invalid salt like "!!" */
+ 		dropbear_log(LOG_WARNING, "User account '%s' is locked",
+diff --git a/svr-authpubkey.c b/svr-authpubkey.c
+index aa6087c9..ff481c87 100644
+--- a/svr-authpubkey.c
++++ b/svr-authpubkey.c
+@@ -79,7 +79,7 @@ static int checkfileperm(char * filename);
+ 
+ /* process a pubkey auth request, sending success or failure message as
+  * appropriate */
+-void svr_auth_pubkey() {
++void svr_auth_pubkey(int valid_user) {
+ 
+ 	unsigned char testkey; /* whether we're just checking if a key is usable */
+ 	char* algo = NULL; /* pubkey algo */
+@@ -102,6 +102,15 @@ void svr_auth_pubkey() {
+ 	keybloblen = buf_getint(ses.payload);
+ 	keyblob = buf_getptr(ses.payload, keybloblen);
+ 
++	if (!valid_user) {
++		/* Return failure once we have read the contents of the packet
++		required to validate a public key. 
++		Avoids blind user enumeration though it isn't possible to prevent
++		testing for user existence if the public key is known */
++		send_msg_userauth_failure(0, 0);
++		goto out;
++	}
++
+ 	/* check if the key is valid */
+ 	if (checkpubkey(algo, algolen, keyblob, keybloblen) == DROPBEAR_FAILURE) {
+ 		send_msg_userauth_failure(0, 0);
diff --git a/gnu/packages/patches/haskell-mode-make-check.patch b/gnu/packages/patches/haskell-mode-make-check.patch
new file mode 100644
index 0000000000..a4d4d525f2
--- /dev/null
+++ b/gnu/packages/patches/haskell-mode-make-check.patch
@@ -0,0 +1,35 @@
+Copied from upstream repository.
+Hunk #2 is removed since it cannot be applied and it is not needed.
+
+From 7cead7137bf54851c1b7df5a3854351296d21276 Mon Sep 17 00:00:00 2001
+From: Vasantha Ganesh K <vasanthaganesh.k@tuta.io>
+Date: Thu, 22 Jun 2017 23:38:40 +0530
+Subject: [PATCH] removed `check-conventions' from make
+
+---
+ Makefile                          |   7 +-
+ tests/haskell-code-conventions.el | 165 ------------------------------
+ 2 files changed, 1 insertion(+), 171 deletions(-)
+ delete mode 100644 tests/haskell-code-conventions.el
+
+diff --git a/Makefile b/Makefile
+index b2c89d6..aa907c5 100644
+--- a/Makefile
++++ b/Makefile
+@@ -79,12 +79,7 @@ build-$(EMACS_VERSION)/build-flag : build-$(EMACS_VERSION) $(patsubst %.el,build
+ check-%: tests/%-tests.el
+ 	$(BATCH) -l "$<" -f ert-run-tests-batch-and-exit;
+ 
+-check: compile $(AUTOLOADS) check-ert check-conventions
+-
+-check-conventions :
+-	$(BATCH) -l tests/haskell-code-conventions.el                                           \
+-                 -f haskell-check-conventions-batch-and-exit
+-	@echo "conventions are okay"
++check: compile $(AUTOLOADS) check-ert
+ 
+ check-ert: $(ELCHECKS)
+ 	$(BATCH) --eval "(when (= emacs-major-version 24)					\
+-- 
+2.18.0
+
diff --git a/gnu/packages/patches/haskell-mode-unused-variables.patch b/gnu/packages/patches/haskell-mode-unused-variables.patch
new file mode 100644
index 0000000000..b175fae28c
--- /dev/null
+++ b/gnu/packages/patches/haskell-mode-unused-variables.patch
@@ -0,0 +1,44 @@
+Copied verbatim from upstream repository.
+
+From cee22450ee30e79952f594796721dc6b17798ee6 Mon Sep 17 00:00:00 2001
+From: Sascha Wilde <wilde@sha-bang.de>
+Date: Fri, 23 Sep 2016 15:35:59 +0200
+Subject: [PATCH] Removed unused lexical variables.
+
+---
+ haskell-lexeme.el  | 3 +--
+ haskell-process.el | 4 +---
+ 2 files changed, 2 insertions(+), 5 deletions(-)
+
+diff --git a/haskell-lexeme.el b/haskell-lexeme.el
+index 4256a79..b832560 100644
+--- a/haskell-lexeme.el
++++ b/haskell-lexeme.el
+@@ -138,8 +138,7 @@ When match is successful, match-data will contain:
+   (match-text 2) - whole qualified identifier
+   (match-text 3) - unqualified part of identifier
+   (match-text 4) - closing backtick"
+-  (let ((begin (point))
+-        (match-data-old (match-data))
++  (let ((match-data-old (match-data))
+         first-backtick-start
+         last-backtick-start
+         qid-start
+diff --git a/haskell-process.el b/haskell-process.el
+index b4efba2..4f3f859 100644
+--- a/haskell-process.el
++++ b/haskell-process.el
+@@ -160,9 +160,7 @@ HPTYPE is the result of calling `'haskell-process-type`' function."
+ (defun haskell-process-log (msg)
+   "Effective append MSG to the process log (if enabled)."
+   (when haskell-process-log
+-    (let* ((append-to (get-buffer-create "*haskell-process-log*"))
+-           (windows (get-buffer-window-list append-to t t))
+-           move-point-in-windows)
++    (let* ((append-to (get-buffer-create "*haskell-process-log*")))
+       (with-current-buffer append-to
+         ;; point should follow insertion so that it stays at the end
+         ;; of the buffer
+-- 
+2.18.0
+
diff --git a/gnu/packages/patches/netsurf-message-timestamp.patch b/gnu/packages/patches/netsurf-message-timestamp.patch
new file mode 100644
index 0000000000..8df9dbf8f7
--- /dev/null
+++ b/gnu/packages/patches/netsurf-message-timestamp.patch
@@ -0,0 +1,11 @@
+--- netsurf-3.8/utils/split-messages.pl.orig	1969-12-31 18:00:00.000000000 -0600
++++ netsurf-3.8/utils/split-messages.pl	2018-08-30 00:18:58.158367530 -0500
+@@ -238,7 +238,7 @@
+ 
+     if( $opt{gzip} )
+     {
+-        $ofh = new IO::Compress::Gzip( $ofh, AutoClose => 1, -Level => 9 );
++        $ofh = new IO::Compress::Gzip( $ofh, AutoClose => 1, -Level => 9, Time => 0 );
+     }
+ 
+     return $ofh;
diff --git a/gnu/packages/patches/netsurf-system-utf8proc.patch b/gnu/packages/patches/netsurf-system-utf8proc.patch
index 654d45d017..a2ee52ca05 100644
--- a/gnu/packages/patches/netsurf-system-utf8proc.patch
+++ b/gnu/packages/patches/netsurf-system-utf8proc.patch
@@ -17,23 +17,23 @@ Work around upstream's lack of a pkg-config file and update API.
  
  # Optional libraries with pkgconfig
  
---- netsurf-3.6/utils/idna.c
-+++ netsurf-3.6/utils/idna.c
-@@ -26,7 +26,7 @@
- #include <stdint.h>
+--- netsurf-3.8/utils/idna.c
++++ netsurf-3.8/utils/idna.c
+@@ -27,7 +27,7 @@
  #include <stdlib.h>
  #include <string.h>
+ #include <sys/types.h>
 -#include <libutf8proc/utf8proc.h>
 +#include <utf8proc.h>
  
- #include "utils/errors.h"
- #include "utils/idna.h"
---- netsurf-3.7/test/Makefile	2017-10-15 08:39:24.000000000 -0500
-+++ netsurf-3.7/test/Makefile	2017-11-05 11:14:46.219013218 -0600
-@@ -139,14 +139,14 @@
- 	-D_XOPEN_SOURCE=600 \
+ #include "netsurf/inttypes.h"
+ 
+--- netsurf-3.8/test/Makefile
++++ netsurf-3.8/test/Makefile
+@@ -142,14 +142,15 @@
  	-Itest -Iinclude -Icontent/handlers -Ifrontends -I. -I.. \
  	-Dnsgtk \
+ 	$(SAN_FLAGS) \
 -	$(shell pkg-config --cflags libcurl libparserutils libwapcaplet libdom libnsutils libutf8proc) \
 +	$(shell pkg-config --cflags libcurl libparserutils libwapcaplet libdom libnsutils) \
  	$(LIB_CFLAGS)
@@ -43,7 +43,8 @@ Work around upstream's lack of a pkg-config file and update API.
  
  TESTLDFLAGS := -L$(TESTROOT) \
 -	$(shell pkg-config --libs libcurl libparserutils libwapcaplet libdom libnsutils libutf8proc) -lz \
-+	$(shell pkg-config --libs libcurl libparserutils libwapcaplet libdom libnsutils) -lz -lutf8proc \
++	$(shell pkg-config --libs libcurl libparserutils libwapcaplet libdom libnsutils) \
++	$(LDFLAGS) \
+ 	$(SAN_FLAGS) \
  	$(LIB_LDFLAGS)\
  	$(COV_LDFLAGS)
- 
diff --git a/gnu/packages/patches/openexr-missing-samples.patch b/gnu/packages/patches/openexr-missing-samples.patch
deleted file mode 100644
index 16cc9bb625..0000000000
--- a/gnu/packages/patches/openexr-missing-samples.patch
+++ /dev/null
@@ -1,23 +0,0 @@
-This patch comments out tests that rely on files that are missing
-from the source tarball.
-
---- openexr-2.2.0/IlmImfTest/testSampleImages.cpp	2015-02-25 16:19:21.565105625 +0100
-+++ openexr-2.2.0/IlmImfTest/testSampleImages.cpp	2015-02-25 16:21:46.394128206 +0100
-@@ -162,16 +162,6 @@ testSampleImages (const std::string&)
- 	compareImages (ILM_IMF_TEST_IMAGEDIR "comp_b44.exr",
- 		       ILM_IMF_TEST_IMAGEDIR "comp_b44_piz.exr");
- 
--	compareImages (ILM_IMF_TEST_IMAGEDIR "comp_dwaa_v1.exr",
--		       ILM_IMF_TEST_IMAGEDIR "comp_dwaa_piz.exr");
--	compareImages (ILM_IMF_TEST_IMAGEDIR "comp_dwaa_v2.exr",
--		       ILM_IMF_TEST_IMAGEDIR "comp_dwaa_piz.exr");
--
--	compareImages (ILM_IMF_TEST_IMAGEDIR "comp_dwab_v1.exr",
--		       ILM_IMF_TEST_IMAGEDIR "comp_dwab_piz.exr");
--	compareImages (ILM_IMF_TEST_IMAGEDIR "comp_dwab_v2.exr",
--		       ILM_IMF_TEST_IMAGEDIR "comp_dwab_piz.exr");
--
- 
- 	cout << "ok\n" << endl;
-     }
-
diff --git a/gnu/packages/patches/rust-1.19-mrustc.patch b/gnu/packages/patches/rust-1.19-mrustc.patch
new file mode 100644
index 0000000000..261162172e
--- /dev/null
+++ b/gnu/packages/patches/rust-1.19-mrustc.patch
@@ -0,0 +1,28 @@
+See https://github.com/thepowersgang/mrustc/archive/v0.8.0.tar.gz
+
+--- rustc-1.19.0-src-orig/src/libcore/intrinsics.rs
++++ rustc-1.19.0-src/src/libcore/intrinsics.rs
+@@ -678,5 +678,9 @@
+     pub fn min_align_of_val<T: ?Sized>(_: &T) -> usize;
+ 
++    /// Obtain the length of a slice pointer
++    #[cfg(rust_compiler="mrustc")]
++    pub fn mrustc_slice_len<T>(pointer: *const [T]) -> usize;
++
+     /// Gets a static string slice containing the name of a type.
+     pub fn type_name<T: ?Sized>() -> &'static str;
+
+--- rustc-1.19.0-src-orig/src/libcore/slice/mod.rs
++++ rustc-1.19.0-src/src/libcore/slice/mod.rs
+@@ -413,6 +413,8 @@
+     #[inline]
+     fn len(&self) -> usize {
+-        unsafe {
+-            mem::transmute::<&[T], Repr<T>>(self).len
+-        }
++        #[cfg(not(rust_compiler="mrustc"))]
++        let rv = unsafe { mem::transmute::<&[T], Repr<T>>(self).len };
++        #[cfg(rust_compiler="mrustc")]
++        let rv = unsafe { ::intrinsics::mrustc_slice_len(self) };
++        rv
+     }
diff --git a/gnu/packages/perl.scm b/gnu/packages/perl.scm
index 47d5d8bbb2..761c5987b0 100644
--- a/gnu/packages/perl.scm
+++ b/gnu/packages/perl.scm
@@ -7593,7 +7593,7 @@ renaming exports, if they try to use them.")
 (define-public perl-sub-identify
   (package
     (name "perl-sub-identify")
-    (version "0.10")
+    (version "0.14")
     (source
      (origin
        (method url-fetch)
@@ -7601,7 +7601,7 @@ renaming exports, if they try to use them.")
                            "Sub-Identify-" version ".tar.gz"))
        (sha256
         (base32
-         "087fjcg6w576w47i1slj6mjfd3gl1b0airgddmn3prn0nff6nn2m"))))
+         "0vxdxyfh6037xy88ic7500wydzmsxldhp95n8bld2kaihqh2g386"))))
     (build-system perl-build-system)
     (home-page "https://metacpan.org/release/Sub-Identify")
     (synopsis "Retrieve names of code references")
diff --git a/gnu/packages/photo.scm b/gnu/packages/photo.scm
index 3fd3d0854b..7bdf04cb49 100644
--- a/gnu/packages/photo.scm
+++ b/gnu/packages/photo.scm
@@ -95,6 +95,18 @@ cameras (CRW/CR2, NEF, RAF, DNG, and others).")
     ;; both two licensing modes for your changes/additions."
     (license (list license:lgpl2.1 license:cddl1.0))))
 
+(define-public libraw-0.18
+  (package (inherit libraw)
+    (name "libraw")
+    (version "0.18.12")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://www.libraw.org/data/LibRaw-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "1m2khr2cij8z6lawgbmdksjn14fpnjsy8ad4qahnpqapm1slsxap"))))))
+
 (define-public libexif
   (package
     (name "libexif")
diff --git a/gnu/packages/printers.scm b/gnu/packages/printers.scm
index f8890cb7f1..dff9ed3010 100644
--- a/gnu/packages/printers.scm
+++ b/gnu/packages/printers.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -18,7 +19,7 @@
 
 (define-module (gnu packages printers)
   #:use-module (guix packages)
-  #:use-module (guix download)
+  #:use-module (guix git-download)
   #:use-module (guix build-system gnu)
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (gnu packages libusb)
@@ -32,15 +33,15 @@
   (package
     (name "robocut")
     (version "1.0.11")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append
-                    "https://github.com/Timmmm/robocut/archive/v"
-                    version ".tar.gz"))
-              (sha256
-               (base32
-                "0nmr1plq1f6sarxwqwy4vzbxkljlx8y4xalm7r05vx4lrdai5pad"))
-              (file-name (string-append name "-" version ".tar.gz"))))
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/Timmmm/robocut.git")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "0dp9cssyik63yvkk35s51v94a873x751iqg93qzd8dpqkmz5z8gn"))))
     (build-system gnu-build-system)
     (arguments
      '(#:phases (modify-phases %standard-phases
diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index 36c5b0ea93..ed04de7547 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -99,6 +99,7 @@
   #:use-module (gnu packages libevent)
   #:use-module (gnu packages libffi)
   #:use-module (gnu packages linux)
+  #:use-module (gnu packages llvm)
   #:use-module (gnu packages machine-learning)
   #:use-module (gnu packages man)
   #:use-module (gnu packages maths)
@@ -3363,14 +3364,14 @@ convert between colorspaces like sRGB, XYZ, CIEL*a*b*, CIECAM02, CAM02-UCS, etc.
 (define-public python-matplotlib
   (package
     (name "python-matplotlib")
-    (version "2.2.2")
+    (version "2.2.3")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "matplotlib" version))
        (sha256
         (base32
-         "1s6dv225w3k4fv52h8lfjc7qq5y56i9755ayx0mz48ddi99fzisd"))))
+         "1rcc7x9ig3hpchkc4cwdvym3y451w74275fxr455zkfagrsvymbk"))))
     (build-system python-build-system)
     (propagated-inputs ; the following packages are all needed at run time
      `(("python-cycler" ,python-cycler)
@@ -3398,7 +3399,8 @@ convert between colorspaces like sRGB, XYZ, CIEL*a*b*, CIECAM02, CAM02-UCS, etc.
        ;; object. For this reason we need to import both libraries.
        ;; https://pythonhosted.org/cairocffi/cffi_api.html#converting-pycairo
        ("python-pycairo" ,python-pycairo)
-       ("python-pyqt" ,python-pyqt)
+       ;; XXX: qtwebkit cannot be built reliably.
+       ("python-pyqt" ,python-pyqt-without-qtwebkit)
        ("python-cairocffi" ,python-cairocffi)))
     (inputs
      `(("libpng" ,libpng)
@@ -3649,6 +3651,18 @@ functions.")
     (arguments
      `(#:phases
        (modify-phases %standard-phases
+         (add-after 'unpack 'disable-broken-tests
+           (lambda _
+             (substitute* "scipy/sparse/linalg/dsolve/tests/test_linsolve.py"
+               (("^( +)def test_threads_parallel\\(self\\):" m indent)
+                (string-append indent
+                               "@pytest.mark.skip(reason=\"Disabled by Guix\")\n"
+                               m)))
+             (substitute* "scipy/sparse/linalg/eigen/arpack/tests/test_arpack.py"
+               (("^def test_parallel_threads\\(\\):" m)
+                (string-append "@pytest.mark.skip(reason=\"Disabled by Guix\")\n"
+                               m)))
+             #t))
          (add-before 'build 'configure-openblas
            (lambda* (#:key inputs #:allow-other-keys)
              (call-with-output-file "site.cfg"
@@ -7267,7 +7281,7 @@ applications.")
     (description "With apipkg you can control the exported namespace of a Python
 package and greatly reduce the number of imports for your users.  It is a small
 pure Python module that works on virtually all Python versions.")
-    (home-page "https://bitbucket.org/hpk42/apipkg")
+    (home-page "https://github.com/pytest-dev/apipkg")
     (license license:expat)))
 
 (define-public python2-apipkg
@@ -13821,3 +13835,112 @@ Let's Encrypt.")
 development that supports command line argument parsing, command string
 validation testing and application logic.")
     (license license:expat)))
+
+;; Make sure to upgrade python-llvmlite in (gnu packages llvm) together with
+;; python-numba.  They have a very unflexible relationship.
+(define-public python-numba
+  (package
+    (name "python-numba")
+    (version "0.39.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "numba" version))
+       (sha256
+        (base32
+         "1bibvkwga1v8293i9ivl469d8bzgabn3vgr2ig7c1i68v8frsx07"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:modules ((guix build utils)
+                  (guix build python-build-system)
+                  (ice-9 ftw)
+                  (srfi srfi-1)
+                  (srfi srfi-26))
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'disable-proprietary-features
+           (lambda _
+             (setenv "NUMBA_DISABLE_HSA" "1")
+             (setenv "NUMBA_DISABLE_CUDA" "1")
+             #t))
+         (add-after 'unpack 'remove-failing-tests
+           (lambda _
+             ;; FIXME: these tests fail for unknown reasons:
+             ;; test_non_writable_pycache, test_non_creatable_pycache, and
+             ;; test_frozen (all in numba.tests.test_dispatcher.TestCache).
+             (substitute* "numba/tests/test_dispatcher.py"
+               (("def test(_non_writable_pycache)" _ m)
+                (string-append "def guix_skip" m))
+               (("def test(_non_creatable_pycache)" _ m)
+                (string-append "def guix_skip" m))
+               (("def test(_frozen)" _ m)
+                (string-append "def guix_skip" m)))
+
+             ;; These tests fail because we don't run the tests from the build
+             ;; directory: test_setup_py_distutils, test_setup_py_setuptools
+             ;; They ar in numba.tests.test_pycc.TestDistutilsSupport.
+             (substitute* "numba/tests/test_pycc.py"
+               (("def test(_setup_py_distutils|_setup_py_setuptools)" _ m)
+                (string-append "def guix_skip" m)))
+             #t))
+         (replace 'check
+           (lambda _
+             (let ((cwd (getcwd)))
+               (setenv "PYTHONPATH"
+                       (string-append cwd "/build/"
+                                      (find (cut string-prefix? "lib" <>)
+                                            (scandir (string-append cwd "/build")))
+                                      ":"
+                                      (getenv "PYTHONPATH")))
+               ;; Something is wrong with the PYTHONPATH when running the
+               ;; tests from the build directory, as it complains about not being
+               ;; able to import certain modules.
+               (with-directory-excursion "/tmp"
+                 (invoke "python3" "-m" "numba.runtests" "-v" "-m")))
+             #t)))))
+    (propagated-inputs
+     `(("python-llvmlite" ,python-llvmlite)
+       ("python-numpy" ,python-numpy)
+       ("python-singledispatch" ,python-singledispatch)))
+    ;; Needed for tests.
+    (inputs
+     `(("python-jinja2" ,python-jinja2)
+       ("python-pygments" ,python-pygments)))
+    (home-page "https://numba.pydata.org")
+    (synopsis "Compile Python code using LLVM")
+    (description "Numba gives you the power to speed up your applications with
+high performance functions written directly in Python.  With a few
+annotations, array-oriented and math-heavy Python code can be just-in-time
+compiled to native machine instructions, similar in performance to C, C++ and
+Fortran, without having to switch languages or Python interpreters.
+
+Numba works by generating optimized machine code using the LLVM compiler
+infrastructure at import time, runtime, or statically (using the included pycc
+tool).")
+    (license license:bsd-3)))
+
+(define-public python-anndata
+  (package
+    (name "python-anndata")
+    (version "0.6.9")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "anndata" version))
+       (sha256
+        (base32
+         "1fh461xyyc7pcrjfgd013bdc2alf53r46ss3gfw3431mbb1gappi"))))
+    (build-system python-build-system)
+    (propagated-inputs
+     `(("python-h5py" ,python-h5py)
+       ("python-natsort" ,python-natsort)
+       ("python-pandas" ,python-pandas)
+       ("python-scipy" ,python-scipy)))
+    (home-page "https://github.com/theislab/anndata")
+    (synopsis "Annotated data for data analysis pipelines")
+    (description "Anndata is a package for simple (functional) high-level APIs
+for data analysis pipelines.  In this context, it provides an efficient,
+scalable way of keeping track of data together with learned annotations and
+reduces the code overhead typically encountered when using a mostly
+object-oriented library such as @code{scikit-learn}.")
+    (license license:bsd-3)))
diff --git a/gnu/packages/qt.scm b/gnu/packages/qt.scm
index affba14e98..7d1a4ca585 100644
--- a/gnu/packages/qt.scm
+++ b/gnu/packages/qt.scm
@@ -1834,6 +1834,15 @@ framework.  The bindings are implemented as a set of Python modules and
 contain over 620 classes.")
     (license license:gpl3)))
 
+;; XXX: This is useful because qtwebkit does not build reliably at this time.
+;; Ultimately, it would be nicer to have a more modular set of python-pyqt-*
+;; packages that could be used together.
+(define-public python-pyqt-without-qtwebkit
+  (package (inherit python-pyqt)
+    (name "python-pyqt-without-qtwebkit")
+    (inputs
+     (alist-delete "qtwebkit" (package-inputs python-pyqt)))))
+
 (define-public python2-pyqt
   (package (inherit python-pyqt)
     (name "python2-pyqt")
diff --git a/gnu/packages/regex.scm b/gnu/packages/regex.scm
index 3f501a0736..c9d9e8a359 100644
--- a/gnu/packages/regex.scm
+++ b/gnu/packages/regex.scm
@@ -29,7 +29,7 @@
 (define-public re2
    (package
      (name "re2")
-     (version "2018-08-01")
+     (version "2018-09-01")
      (home-page "https://github.com/google/re2")
      (source (origin
                (method url-fetch)
@@ -37,7 +37,7 @@
                (file-name (string-append name "-" version ".tar.gz"))
                (sha256
                 (base32
-                 "0lmpc3cb9bvc27fp27jacx6qjn176v8z8p7k70byc092q68mr6bw"))))
+                 "0hygr88hvy7if1i45m5r6x60zf73439j2fwzw7wwcw9gb01v690l"))))
      (build-system gnu-build-system)
      (arguments
       `(#:modules ((guix build gnu-build-system)
diff --git a/gnu/packages/ruby.scm b/gnu/packages/ruby.scm
index 908dfd5751..616b86934d 100644
--- a/gnu/packages/ruby.scm
+++ b/gnu/packages/ruby.scm
@@ -37,6 +37,7 @@
   #:use-module (gnu packages java)
   #:use-module (gnu packages libffi)
   #:use-module (gnu packages maths)
+  #:use-module (gnu packages ncurses)
   #:use-module (gnu packages networking)
   #:use-module (gnu packages python)
   #:use-module (gnu packages ragel)
@@ -193,6 +194,25 @@ a focus on simplicity and productivity.")
                (("/bin/sh") (which "sh")))
              #t)))))))
 
+(define-public ruby-concurrent
+  (package
+    (name "ruby-concurrent")
+    (version "1.0.5")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "concurrent-ruby" version))
+              (sha256
+               (base32
+                "183lszf5gx84kcpb779v6a2y0mx9sssy8dgppng1z9a505nj1qcf"))))
+    (build-system ruby-build-system)
+    (arguments `(#:tests? #f)); No rakefile
+    (home-page "https://github.com/ruby-concurrency/concurrent-ruby")
+    (synopsis "Concurrency tools for Ruby")
+    (description "This gem provides concurrency tools for Ruby.  It provides
+a library of common thread-safe types and data-structures as well as abstractions
+for concurrency and communication between threads.")
+    (license license:expat)))
+
 (define-public ruby-highline
   (package
     (name "ruby-highline")
@@ -262,16 +282,17 @@ packaging native C and Java extensions in Ruby.")
 (define-public ruby-i18n
   (package
     (name "ruby-i18n")
-    (version "0.7.0")
+    (version "1.1.0")
     (source (origin
               (method url-fetch)
               (uri (rubygems-uri "i18n" version))
               (sha256
                (base32
-                "1i5z1ykl8zhszsxcs8mzl8d0dxgs3ylz8qlzrw74jb0gplkx6758"))))
+                "0ppvmla21hssvrfm8g1n2fnb4lxn4yhy9qmmba0imanflgldrjmr"))))
     (build-system ruby-build-system)
     (arguments
      '(#:tests? #f)) ; no tests
+    (propagated-inputs `(("concurrent-ruby" ,ruby-concurrent)))
     (synopsis "Internationalization library for Ruby")
     (description "Ruby i18n is an internationalization and localization
 solution for Ruby programs.  It features translation and localization,
@@ -3013,17 +3034,28 @@ you about the changes.")
     (home-page "https://github.com/guard/listen")
     (license license:expat)))
 
+(define-public ruby-listen-3.0
+  (package
+    (inherit ruby-listen)
+    (version "3.0.8")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "listen" version))
+              (sha256
+               (base32
+                "1l0y7hbyfiwpvk172r28hsdqsifq1ls39hsfmzi1vy4ll0smd14i"))))))
+
 (define-public ruby-activesupport
   (package
     (name "ruby-activesupport")
-    (version "5.1.4")
+    (version "5.2.1")
     (source
      (origin
        (method url-fetch)
        (uri (rubygems-uri "activesupport" version))
        (sha256
         (base32
-         "0sgf4rsfr7jcaqsx0wwzx4l4k9xsjlwv0mzl08pxiyp1qzyx8scr"))))
+         "0ziy6xk31k4fs115cdkba1ys4i8nzcyri7a2jig7nx7k5h7li6l2"))))
     (build-system ruby-build-system)
     (arguments
      `(#:phases
@@ -4658,7 +4690,7 @@ binary-to-text encoding.  The main modern use of Ascii85 is in PostScript and
 (define-public ruby-ttfunk
   (package
     (name "ruby-ttfunk")
-    (version "1.4.0")
+    (version "1.5.1")
     (source
      (origin
        (method url-fetch)
@@ -4669,12 +4701,18 @@ binary-to-text encoding.  The main modern use of Ascii85 is in PostScript and
        (file-name (string-append name "-" version ".tar.gz"))
        (sha256
         (base32
-         "1izq84pnm9niyvkzp8k0vl232q9zj41hwmp9na9fzycfh1pbnsl6"))))
+         "1ymcn12n5iws401yz03zsj8rr653fdqq13czsrciq09phgh9jzc5"))))
     (build-system ruby-build-system)
     (arguments
      `(#:test-target "spec"
        #:phases
        (modify-phases %standard-phases
+         (add-before 'build 'remove-ssh
+           (lambda _
+             ;; remove dependency on an ssh key pair that doesn't exist
+             (substitute* "ttfunk.gemspec"
+               (("spec.signing_key.*") ""))
+             #t))
          (add-before 'check 'remove-rubocop
            (lambda _
              ;; remove rubocop as a dependency as not needed for testing
@@ -4682,10 +4720,11 @@ binary-to-text encoding.  The main modern use of Ascii85 is in PostScript and
                (("spec.add_development_dependency\\('rubocop'.*") ""))
              (substitute* "Rakefile"
                (("require 'rubocop/rake_task'") "")
-               (("Rubocop::RakeTask.new") ""))
+               (("RuboCop::RakeTask.new") ""))
              #t)))))
     (native-inputs
      `(("ruby-rspec" ,ruby-rspec)
+       ("ruby-yard" ,ruby-yard)
        ("bundler" ,bundler)))
     (synopsis "Font metrics parser for the Prawn PDF generator")
     (description
@@ -5070,3 +5109,821 @@ programs running in the background, in Ruby.")
        (sha256
         (base32
          "0a61922kmvcxyj5l70fycapr87gz1dzzlkfpq85rfqk5vdh3d28p"))))))
+
+(define-public ruby-public-suffix
+  (package
+    (name "ruby-public-suffix")
+    (version "3.0.3")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "public_suffix" version))
+              (sha256
+               (base32
+                "08q64b5br692dd3v0a9wq9q5dvycc6kmiqmjbdxkxbfizggsvx6l"))))
+    (build-system ruby-build-system)
+    (arguments
+     ;; Tests require network
+     `(#:tests? #f))
+    (home-page "https://simonecarletti.com/code/publicsuffix-ruby/")
+    (synopsis "Domain name parser")
+    (description "The gem @code{public_suffix} is a domain name parser,
+written in Ruby, and based on the @dfn{Public Suffix List}.  A public suffix
+is one under which Internet users can (or historically could) directly
+register names.  Some examples of public suffixes are @code{.com},
+@code{.co.uk} and @code{pvt.k12.ma.us}.  The Public Suffix List is a list of
+all known public suffixes.")
+    (license license:expat)))
+
+(define-public ruby-addressable
+  (package
+    (name "ruby-addressable")
+    (version "2.5.2")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "addressable" version))
+              (sha256
+               (base32
+                "0viqszpkggqi8hq87pqp0xykhvz60g99nwmkwsb0v45kc2liwxvk"))))
+    (build-system ruby-build-system)
+    (propagated-inputs
+     `(("ruby-public-suffix" ,ruby-public-suffix)))
+    (arguments
+     ;; No test target
+     `(#:tests? #f))
+    (home-page "https://github.com/sporkmonger/addressable")
+    (synopsis "Alternative URI implementation")
+    (description "Addressable is a replacement for the URI implementation that
+is part of Ruby's standard library.  It more closely conforms to RFC 3986,
+RFC 3987, and RFC 6570 (level 4), providing support for IRIs and URI templates.")
+    (license license:asl2.0)))
+
+(define-public ruby-colorator
+  (package
+    (name "ruby-colorator")
+    (version "1.1.0")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "colorator" version))
+              (sha256
+               (base32
+                "0f7wvpam948cglrciyqd798gdc6z3cfijciavd0dfixgaypmvy72"))))
+    (build-system ruby-build-system)
+    (arguments
+     ;; No test target
+     `(#:tests? #f))
+    (home-page "http://octopress.org/colorator/")
+    (synopsis "Terminal color library")
+    (description "Colorator is a Ruby gem that helps you colorize your text
+for the terminal.")
+    (license license:expat)))
+
+(define-public ruby-command-line-reporter
+  (package
+    (name "ruby-command-line-reporter")
+    (version "4.0.0")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "command_line_reporter" version))
+              (sha256
+               (base32
+                "1qma35xrb772whxwy1rs9bicb9d6lvz0s2dd2dnn4fr6zcbcxc0a"))))
+    (build-system ruby-build-system)
+    (arguments
+     ;; No Rakefile
+     `(#:tests? #f
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'build 'fix-dependencies
+           (lambda _
+             (substitute* ".gemspec"
+               ;; colored is unmaintained
+               (("colored") "colorator")
+               ;; colorator version
+               (("= 1.2") "= 1.1"))
+             #t)))))
+    (propagated-inputs `(("ruby-colorator" ,ruby-colorator)))
+    (home-page "https://github.com/wbailey/command_line_reporter")
+    (synopsis "Report production while executing Ruby scripts")
+    (description "This gem provides a DSL that makes it easy to write reports
+of various types in ruby.  It eliminates the need to litter your source with
+puts statements, instead providing a more readable, expressive interface to
+your application.")
+    (license license:asl2.0)))
+
+(define-public ruby-command-line-reporter-3
+  (package
+    (inherit ruby-command-line-reporter)
+    (version "3.3.6")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "command_line_reporter" version))
+              (sha256
+               (base32
+                "1h39zqqxp3k4qk49ajpx0jps1vmvxgkh43mqkb6znk583bl0fv71"))))))
+
+(define-public ruby-rdoc
+  (package
+    (name "ruby-rdoc")
+    (version "6.0.4")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (rubygems-uri "rdoc" version))
+        (sha256
+          (base32
+            "0anv42cqcdc6g4n386mrva7mgav5i0c2ry3yzvzzc6z6hymkmcr7"))))
+    (build-system ruby-build-system)
+    (native-inputs
+     `(("bundler" ,bundler)))
+    (home-page "https://ruby.github.io/rdoc/")
+    (synopsis "HTML and command-line documentation utility")
+    (description "RDoc produces HTML and command-line documentation for Ruby
+projects.  RDoc includes the +rdoc+ and +ri+ tools for generating and displaying
+documentation from the command-line.")
+    (license license:gpl2+)))
+
+(define-public ruby-sass-listen
+  (package
+    (name "ruby-sass-listen")
+    (version "4.0.0")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "sass-listen" version))
+              (sha256
+               (base32
+                "0xw3q46cmahkgyldid5hwyiwacp590zj2vmswlll68ryvmvcp7df"))))
+    (build-system ruby-build-system)
+    (arguments
+     ;; No test target
+     `(#:tests? #f))
+    (propagated-inputs
+     `(("ruby-rb-fsevent" ,ruby-rb-fsevent)
+       ("ruby-rb-inotify" ,ruby-rb-inotify)))
+    (home-page "https://github.com/sass/listen")
+    (synopsis "File modification notification library")
+    (description "The Listen gem listens to file modifications and notifies you
+about the changes.")
+    (license license:expat)))
+
+(define-public ruby-terminfo
+  (package
+    (name "ruby-terminfo")
+    (version "0.1.1")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (rubygems-uri "ruby-terminfo" version))
+        (sha256
+          (base32
+            "0rl4ic5pzvrpgd42z0c1s2n3j39c9znksblxxvmhkzrc0ckyg2cm"))))
+    (build-system ruby-build-system)
+    (arguments
+     `(#:test-target "test"
+       ;; Rakefile requires old packages and would need modification to
+       ;; work with current software.
+       #:tests? #f))
+    (inputs
+     `(("ncurses" ,ncurses)))
+    (native-inputs
+     `(("ruby-rubygems-tasks" ,ruby-rubygems-tasks)
+       ("ruby-rdoc" ,ruby-rdoc)))
+    (home-page "http://www.a-k-r.org/ruby-terminfo/")
+    (synopsis "Terminfo binding for Ruby")
+    (description "Ruby-terminfo provides terminfo binding for Ruby.")
+    (license license:bsd-3)))
+
+(define-public ruby-diffy
+  (package
+    (name "ruby-diffy")
+    (version "3.2.1")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (rubygems-uri "diffy" version))
+        (sha256
+          (base32
+            "119imrkn01agwhx5raxhknsi331y5i4yda7r0ws0an6905ximzjg"))))
+    (build-system ruby-build-system)
+    (arguments
+     ;; No tests
+     `(#:tests? #f))
+    (native-inputs
+     `(("ruby-rspec" ,ruby-rspec)))
+    (home-page "https://github.com/samg/diffy")
+    (synopsis "Convenient diffing in ruby")
+    (description "Diffy provides a convenient way to generate a diff from two
+strings or files.")
+    (license license:expat)))
+
+(define-public ruby-sass-spec
+  (package
+    (name "ruby-sass-spec")
+    (version "3.5.4")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/sass/sass-spec/archive/v"
+                                  version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "0nx8lp7c9qa58w489crgqa3c489xsyarn1a8h4np9mwwfqm1h3rr"))))
+    (build-system ruby-build-system)
+    (propagated-inputs
+     `(("ruby-command-line-reporter-3" ,ruby-command-line-reporter-3)
+       ("ruby-diffy" ,ruby-diffy)
+       ("ruby-terminfo" ,ruby-terminfo)))
+    (arguments
+     ;; No Rakefile
+     `(#:tests? #f))
+    (home-page "https://github.com/sass/sass-spec")
+    (synopsis "Test suite for Sass")
+    (description "Sass Spec is a test suite for Sass.  Test cases are all in
+the @file{spec} directory.")
+    (license license:expat)))
+
+(define-public ruby-sass
+  (package
+    (name "ruby-sass")
+    (version "3.5.7")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "sass" version))
+              (sha256
+               (base32
+                "1sy7xsbgpcy90j5ynbq967yplffp74pvph3r8ivn2sv2b44q6i61"))))
+    (build-system ruby-build-system)
+    (propagated-inputs
+     `(("ruby-sass-listen" ,ruby-sass-listen)))
+    (native-inputs
+     `(("ruby-sass-spec" ,ruby-sass-spec)))
+    (home-page "http://sass-lang.com/")
+    (synopsis "CSS extension language")
+    (description "Sass is a CSS extension language.  It extends CSS with
+features that don't exist yet like variables, nesting, mixins and inheritance.")
+    (license license:expat)))
+
+(define-public ruby-jekyll-sass-converter
+  (package
+    (name "ruby-jekyll-sass-converter")
+    (version "1.5.2")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "jekyll-sass-converter" version))
+              (sha256
+               (base32
+                "008ikh5fk0n6ri54mylcl8jn0mq8p2nfyfqif2q3pp0lwilkcxsk"))))
+    (build-system ruby-build-system)
+    (propagated-inputs
+     `(("ruby-sass" ,ruby-sass)))
+    (arguments
+     ;; No rakefile
+     `(#:tests? #f))
+    (home-page "https://github.com/jekyll/jekyll-sass-converter")
+    (synopsis "Sass converter for Jekyll")
+    (description "This gem provide built-in support for the Sass converter
+in Jekyll.")
+    (license license:expat)))
+
+(define-public ruby-jekyll-watch
+  (package
+    (name "ruby-jekyll-watch")
+    (version "2.0.0")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "jekyll-watch" version))
+              (sha256
+               (base32
+                "0m7scvj3ki8bmyx5v8pzibpg6my10nycnc28lip98dskf8iakprp"))))
+    (build-system ruby-build-system)
+    (propagated-inputs
+     `(("ruby-listen-3.0" ,ruby-listen-3.0)))
+    (arguments
+     ;; No rakefile
+     `(#:tests? #f))
+    (home-page "https://github.com/jekyll/jekyll-watch")
+    (synopsis "Jekyll auto-rebuild support")
+    (description "This gems add the @code{--watch} switch to the jekyll CLI
+interface.  It allows Jekyll to rebuild your site when a file changes.")
+    (license license:expat)))
+
+(define-public ruby-parallel
+  (package
+    (name "ruby-parallel")
+    (version "1.12.1")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "parallel" version))
+              (sha256
+               (base32
+                "01hj8v1qnyl5ndrs33g8ld8ibk0rbcqdpkpznr04gkbxd11pqn67"))))
+    (build-system ruby-build-system)
+    (arguments `(#:tests? #f)); No rakefile
+    (home-page "https://github.com/grosser/parallel")
+    (synopsis "Parallel processing in Ruby")
+    (description "Parallel allows you to run any code in parallel Processes
+(to use all CPUs) or Threads(to speedup blocking operations).  It is best
+suited for map-reduce or e.g. parallel downloads/uploads.")
+    (license license:expat)))
+
+(define-public ruby-cane
+  (package
+    (name "ruby-cane")
+    (version "3.0.0")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "cane" version))
+              (sha256
+               (base32
+                "0yf5za3l7lhrqa3g56sah73wh33lbxy5y3cb7ij0a2bp1b4kwhih"))))
+    (build-system ruby-build-system)
+    (arguments `(#:tests? #f)); No rakefile
+    (home-page "https://github.com/square/cane")
+    (propagated-inputs
+     `(("ruby-parallel" ,ruby-parallel)))
+    (synopsis "Code quality threshold checking")
+    (description "Cane fails your build if code quality thresholds are not met.")
+    (license license:asl2.0)))
+
+(define-public ruby-morecane
+  (package
+    (name "ruby-morecane")
+    (version "0.2.0")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "morecane" version))
+              (sha256
+               (base32
+                "0w70vb8z5bdhvr21h660aa43m5948pv0bd27z7ngai2iwdvqd771"))))
+    (build-system ruby-build-system)
+    (home-page "https://github.com/yob/morecane")
+    (arguments `(#:tests? #f)); No rakefile
+    (propagated-inputs
+     `(("ruby-parallel" ,ruby-parallel)))
+    (synopsis "Extra checks for cane")
+    (description "The cane gem provides a great framework for running quality
+checks over your ruby project as part of continuous integration build.  It
+comes with a few checks out of the box, but also provides an API for loading
+custom checks.  This gem provides a set of additional checks.")
+    (license license:expat)))
+
+(define-public ruby-pdf-reader
+  (package
+    (name "ruby-pdf-reader")
+    (version "2.1.0")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "pdf-reader" version))
+              (sha256
+               (base32
+                "1b3ig4wpcgdbqa7yw0ahwbmikkkywn2a22bfmrknl5ls7g066x45"))))
+    (build-system ruby-build-system)
+    (arguments `(#:test-target "spec"))
+    (native-inputs
+     `(("bundler" ,bundler)
+       ("ruby-rspec" ,ruby-rspec)
+       ("ruby-cane" ,ruby-cane)
+       ("ruby-morecane" ,ruby-morecane)))
+    (propagated-inputs
+     `(("ruby-afm" ,ruby-afm)
+       ("ruby-ascii85" ,ruby-ascii85)
+       ("ruby-hashery" ,ruby-hashery)
+       ("ruby-rc4" ,ruby-rc4)
+       ("ruby-ttfunk" ,ruby-ttfunk)))
+    (home-page "https://github.com/yob/pdf-reader")
+    (synopsis "PDF parser in Ruby")
+    (description "The PDF::Reader library implements a PDF parser conforming as
+much as possible to the PDF specification from Adobe.  It provides programmatic
+access to the contents of a PDF file with a high degree of flexibility.")
+    (license license:gpl3+)))
+
+(define-public ruby-pdf-inspector
+  (package
+    (name "ruby-pdf-inspector")
+    (version "1.3.0")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "pdf-inspector" version))
+              (sha256
+               (base32
+                "1g853az4xzgqxr5xiwhb76g4sqmjg4s79mm35mp676zjsrwpa47w"))))
+    (build-system ruby-build-system)
+    (propagated-inputs
+     `(("ruby-pdf-reader" ,ruby-pdf-reader)))
+    (arguments `(#:tests? #f)); No rakefile
+    (home-page "https://github.com/prawnpdf/pdf-inspector")
+    (synopsis "Analysis classes for inspecting PDF output")
+    (description "This library provides a number of PDF::Reader based tools for
+use in testing PDF output.  Presently, the primary purpose of this tool is to
+support the tests found in Prawn, a pure Ruby PDF generation library.")
+    (license license:gpl3+)))
+
+(define-public ruby-pdf-core
+  (package
+    (name "ruby-pdf-core")
+    (version "0.8.1")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "pdf-core" version))
+              (sha256
+               (base32
+                "15d6m99bc8bbzlkcg13qfpjjzphfg5x905pjbfygvpcxsm8gnsvg"))))
+    (build-system ruby-build-system)
+    (arguments
+     ; No test target
+     `(#:tests? #f))
+    (home-page "https://github.com/prawnpdf/pdf-core")
+    (synopsis "Low level PDF features for Prawn")
+    (description "This is an experimental gem that extracts low-level PDF
+functionality from Prawn.")
+    (license license:gpl3+)))
+
+(define-public ruby-yard
+  (package
+    (name "ruby-yard")
+    (version "0.9.16")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "yard" version))
+              (sha256
+               (base32
+                "0lmmr1839qgbb3zxfa7jf5mzy17yjl1yirwlgzdhws4452gqhn67"))))
+    (build-system ruby-build-system)
+    (arguments `(#:test-target "spec"))
+    (home-page "https://yardoc.org/")
+    (synopsis "Ruby documentation tool")
+    (description "YARD is a documentation generation tool for the Ruby
+programming language.  It enables the user to generate consistent, usable
+documentation that can be exported to a number of formats very easily, and
+also supports extending for custom Ruby constructs such as custom class level
+definitions.")
+    (license license:expat)))
+
+(define-public ruby-prawn
+  (package
+    (name "ruby-prawn")
+    (version "2.2.2")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "prawn" version))
+              (sha256
+               (base32
+                "1qdjf1v6sfl44g3rqxlg8k4jrzkwaxgvh2l4xws97a8f3xv4na4m"))))
+    (build-system ruby-build-system)
+    (arguments
+     ; No tests
+     `(#:tests? #f
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'build 'fix-dependencies
+           (lambda _
+             (substitute* "prawn.gemspec"
+               (("~> 0.7.0") "~> 0.7"))
+             #t)))))
+    (propagated-inputs
+     `(("ruby-pdf-core" ,ruby-pdf-core)
+       ("ruby-ttfunk" ,ruby-ttfunk)))
+    (native-inputs
+     `(("bundler" ,bundler)
+       ("ruby-pdf-inspector" ,ruby-pdf-inspector)
+       ("ruby-rspec" ,ruby-rspec)
+       ("ruby-simplecov" ,ruby-simplecov)
+       ("ruby-yard" ,ruby-yard)))
+    (home-page "http://prawnpdf.org/api-docs/2.0/")
+    (synopsis "PDF generation for Ruby")
+    (description "Prawn is a pure Ruby PDF generation library.")
+    (license license:gpl3+)))
+
+(define-public ruby-prawn-table
+  (package
+    (name "ruby-prawn-table")
+    (version "0.2.2")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "prawn-table" version))
+              (sha256
+               (base32
+                "1nxd6qmxqwl850icp18wjh5k0s3amxcajdrkjyzpfgq0kvilcv9k"))))
+    (build-system ruby-build-system)
+    (arguments `(#:tests? #f)); No rakefile
+    (propagated-inputs
+     `(("ruby-prawn" ,ruby-prawn)))
+    (home-page "https://github.com/prawnpdf/prawn-table")
+    (synopsis "Tables support for Prawn")
+    (description "This gem provides tables support for Prawn.")
+    (license license:gpl3+)))
+
+(define-public ruby-kramdown
+  (package
+    (name "ruby-kramdown")
+    (version "1.17.0")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "kramdown" version))
+              (sha256
+               (base32
+                "1n1c4jmrh5ig8iv1rw81s4mw4xsp4v97hvf8zkigv4hn5h542qjq"))))
+    (build-system ruby-build-system)
+    (arguments `(#:tests? #f)); FIXME: some test failures
+    (native-inputs
+     `(("ruby-prawn" ,ruby-prawn)
+       ("ruby-prawn-table" ,ruby-prawn-table)))
+    (home-page "https://kramdown.gettalong.org/")
+    (synopsis "Markdown parsing and converting library")
+    (description "Kramdown is a library for parsing and converting a superset
+of Markdown.  It is completely written in Ruby, supports standard Markdown
+(with some minor modifications) and various extensions that have been made
+popular by the PHP @code{Markdown Extra} package and @code{Maruku}.")
+    (license license:expat)))
+
+(define-public ruby-http-parser.rb
+  (package
+    (name "ruby-http-parser.rb")
+    (version "0.6.0")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (rubygems-uri "http_parser.rb" version))
+        (sha256
+          (base32
+            "15nidriy0v5yqfjsgsra51wmknxci2n2grliz78sf9pga3n0l7gi"))))
+    (build-system ruby-build-system)
+    (arguments
+     ;; No tests
+     `(#:tests? #f))
+    (native-inputs
+     `(("ruby-rake-compiler" ,ruby-rake-compiler)
+       ("ruby-rspec" ,ruby-rspec)))
+    (home-page "https://github.com/tmm1/http_parser.rb")
+    (synopsis "HTTP parser un Ruby")
+    (description "This gem is a simple callback-based HTTP request/response
+parser for writing http servers, clients and proxies.")
+    (license license:expat)))
+
+(define-public ruby-em-websocket
+  (package
+    (name "ruby-em-websocket")
+    (version "0.5.1")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (rubygems-uri "em-websocket" version))
+        (sha256
+          (base32
+            "1bsw8vjz0z267j40nhbmrvfz7dvacq4p0pagvyp17jif6mj6v7n3"))))
+    (build-system ruby-build-system)
+    (arguments
+     ;; No tests
+     `(#:tests? #f))
+    (propagated-inputs
+      `(("ruby-eventmachine" ,ruby-eventmachine)
+        ("ruby-http-parser.rb" ,ruby-http-parser.rb)))
+    (native-inputs
+     `(("bundler" ,bundler)
+       ("ruby-rspec" ,ruby-rspec)))
+    (home-page "https://github.com/igrigorik/em-websocket")
+    (synopsis "EventMachine based WebSocket server")
+    (description "Em-websocket is an EventMachine based WebSocket server
+implementation.")
+    (license license:expat)))
+
+(define-public ruby-rouge
+  (package
+    (name "ruby-rouge")
+    (version "3.2.1")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "rouge" version))
+              (sha256
+               (base32
+                "0h79gn2wmn1wix2d27lgiaimccyj8gvizrllyym500pir408x62f"))))
+    (build-system ruby-build-system)
+    (arguments `(#:tests? #f)); No rakefile
+    (home-page "http://rouge.jneen.net/")
+    (synopsis "Code highlighter")
+    (description "Rouge is a code highlighter written in Ruby.  It supports more
+than 100 languages and outputs HTML or ANSI 256-color text.  Its HTML output
+is compatible with stylesheets designed for pygments.")
+    (license (list
+               ;; rouge is licensed under expat
+               license:expat
+               ;; pygments is licensed under bsd-2
+               license:bsd-2))))
+
+(define-public ruby-rouge-2
+  (package
+    (inherit ruby-rouge)
+    (version "2.2.1")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "rouge" version))
+              (sha256
+               (base32
+                "02kpahk5nkc33yxnn75649kzxaz073wvazr2zyg491nndykgnvcs"))))))
+
+(define-public ruby-hashie
+  (package
+    (name "ruby-hashie")
+    (version "3.6.0")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "hashie" version))
+              (sha256
+               (base32
+                "13bdzfp25c8k51ayzxqkbzag3wj5gc1jd8h7d985nsq6pn57g5xh"))))
+    (build-system ruby-build-system)
+    (native-inputs
+     `(("bundler" ,bundler)))
+    (arguments `(#:tests? #f)); FIXME: Could not locate Gemfile or .bundle/ directory
+    (home-page "https://github.com/intridea/hashie")
+    (synopsis "Extensions to Ruby Hashes")
+    (description "Hashie is a collection of classes and mixins that make Ruby
+hashes more powerful.")
+    (license license:expat)))
+
+(define-public ruby-heredoc-unindent
+  (package
+    (name "ruby-heredoc-unindent")
+    (version "1.2.0")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "heredoc_unindent" version))
+              (sha256
+               (base32
+                "14ijr2fsjwhrkjkcaz81d5xnfa4vvgvcflrff83avqw9klm011yw"))))
+    (build-system ruby-build-system)
+    (native-inputs
+     `(("ruby-hoe" ,ruby-hoe)))
+    (home-page "https://github.com/adrianomitre/heredoc_unindent")
+    (synopsis "Heredoc indentation cleaner")
+    (description "This gem removes common margin from indented strings, such
+as the ones produced by indented heredocs.  In other words, it strips out
+leading whitespace chars at the beggining of each line, but only as much as
+the line with the smallest margin.
+
+It is acknowledged that many strings defined by heredocs are just code and
+fact is that most parsers are insensitive to indentation.  If, however, the
+strings are to be used otherwise, be it for printing or testing, the extra
+indentation will probably be an issue and hence this gem.")
+    (license license:expat)))
+
+(define-public ruby-safe-yaml
+  (package
+    (name "ruby-safe-yaml")
+    (version "1.0.4")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "safe_yaml" version))
+              (sha256
+               (base32
+                "1hly915584hyi9q9vgd968x2nsi5yag9jyf5kq60lwzi5scr7094"))))
+    (build-system ruby-build-system)
+    (native-inputs
+     `(("ruby-rspec" ,ruby-rspec)
+       ("ruby-hashie" ,ruby-hashie)
+       ("ruby-heredoc-unindent" ,ruby-heredoc-unindent)))
+    (arguments `(#:test-target "spec"
+                 #:tests? #f));; FIXME: one failure
+    (home-page "https://github.com/dtao/safe_yaml")
+    (synopsis "YAML parser")
+    (description "The SafeYAML gem provides an alternative implementation of
+YAML.load suitable for accepting user input in Ruby applications.")
+    (license license:expat)))
+
+(define-public ruby-mercenary
+  (package
+    (name "ruby-mercenary")
+    (version "0.3.6")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "mercenary" version))
+              (sha256
+               (base32
+                "10la0xw82dh5mqab8bl0dk21zld63cqxb1g16fk8cb39ylc4n21a"))))
+    (build-system ruby-build-system)
+    (arguments `(#:test-target "spec"))
+    (native-inputs
+     `(("bundler" ,bundler)))
+    (home-page "https://github.com/jekyll/mercenary")
+    (synopsis "Command-line apps library in Ruby")
+    (description "Mercenary is a lightweight and flexible library for writing
+command-line apps in Ruby.")
+    (license license:expat)))
+
+(define-public ruby-liquid
+  (package
+    (name "ruby-liquid")
+    (version "4.0.0")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "liquid" version))
+              (sha256
+               (base32
+                "17fa0jgwm9a935fyvzy8bysz7j5n1vf1x2wzqkdfd5k08dbw3x2y"))))
+    (build-system ruby-build-system)
+    (arguments `(#:tests? #f)); No rakefile
+    (home-page "https://shopify.github.io/liquid/")
+    (synopsis "Template language")
+    (description "Liquid is a template language written in Ruby.  It is used
+to load dynamic content on storefronts.")
+    (license license:expat)))
+
+(define-public ruby-forwardable-extended
+  (package
+    (name "ruby-forwardable-extended")
+    (version "2.6.0")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "forwardable-extended" version))
+              (sha256
+               (base32
+                "15zcqfxfvsnprwm8agia85x64vjzr2w0xn9vxfnxzgcv8s699v0v"))))
+    (build-system ruby-build-system)
+    (arguments `(#:tests? #f)); Cyclic dependency on luna-rspec-formatters
+    (home-page "https://github.com/envygeeks/forwardable-extended")
+    (synopsis "Delegation to hashes and instance variables in Forwardable")
+    (description "Forwardable Extended provides more @code{Forwardable}
+methods for your source as @code{Forwardable::Extended}.")
+    (license license:expat)))
+
+(define-public ruby-pathutil
+  (package
+    (name "ruby-pathutil")
+    (version "0.16.1")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "pathutil" version))
+              (sha256
+               (base32
+                "0wc18ms1rzi44lpjychyw2a96jcmgxqdvy2949r4vvb5f4p0lgvz"))))
+    (build-system ruby-build-system)
+    (propagated-inputs
+     `(("ruby-forwardable-extended" ,ruby-forwardable-extended)))
+    (native-inputs
+     `(("bundler" ,bundler)
+       ("ruby-rspec" ,ruby-rspec)))
+    ;; Fails with: cannot load such file --
+    ;; /tmp/guix-build-ruby-pathutil-0.16.0.drv-0/gem/benchmark/support/task
+    (arguments `(#:tests? #f))
+    (home-page "https://github.com/envygeeks/pathutil")
+    (synopsis "Extended implementation of Pathname")
+    (description "Pathutil tries to be a faster pure Ruby implementation of
+Pathname.")
+    (license license:expat)))
+
+(define-public jekyll
+  (package
+    (name "jekyll")
+    (version "3.8.3")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "jekyll" version))
+              (sha256
+               (base32
+                "1iw90wihk9dscgmppf5v6lysg3kjmnx50mjyl4gghkdb4spw97xk"))))
+    (build-system ruby-build-system)
+    (arguments
+     ;; No rakefile, but a test subdirectory
+     `(#:tests? #f
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'build 'fix-i18n
+           (lambda _
+             (substitute* ".gemspec"
+               (("~> 0.7") ">= 0.7"))
+             #t)))))
+    (propagated-inputs
+     `(("ruby-addressable" ,ruby-addressable)
+       ("ruby-colorator" ,ruby-colorator)
+       ("ruby-em-websocket" ,ruby-em-websocket)
+       ("ruby-i18n" ,ruby-i18n)
+       ("ruby-jekyll-sass-converter" ,ruby-jekyll-sass-converter)
+       ("ruby-jekyll-watch" ,ruby-jekyll-watch)
+       ("ruby-kramdown" ,ruby-kramdown)
+       ("ruby-liquid" ,ruby-liquid)
+       ("ruby-mercenary" ,ruby-mercenary)
+       ("ruby-pathutil" ,ruby-pathutil)
+       ("ruby-rouge" ,ruby-rouge-2)
+       ("ruby-safe-yaml" ,ruby-safe-yaml)))
+    (home-page "https://jekyllrb.com/")
+    (synopsis "Static site generator")
+    (description "Jekyll is a simple, blog aware, static site generator.")
+    (license license:expat)))
+
+(define-public ruby-jekyll-paginate-v2
+  (package
+    (name "ruby-jekyll-paginate-v2")
+    (version "2.0.0")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "jekyll-paginate-v2" version))
+              (sha256
+               (base32
+                "154bfpyml6abxww9868hhyfvxasl8qhsc5zy2q30c7dxaj0igdib"))))
+    (build-system ruby-build-system)
+    (propagated-inputs
+     `(("jekyll" ,jekyll)))
+    (home-page "https://github.com/sverrirs/jekyll-paginate-v2")
+    (synopsis "Pagination Generator for Jekyll 3")
+    (description "The Pagination Generator forms the core of the pagination
+logic in Jekyll.  It calculates and generates the pagination pages.")
+    (license license:expat)))
diff --git a/gnu/packages/rust.scm b/gnu/packages/rust.scm
index 0695f8c7d2..631dcfd67c 100644
--- a/gnu/packages/rust.scm
+++ b/gnu/packages/rust.scm
@@ -167,14 +167,120 @@ in turn be used to build the final Rust.")
     (snippet '(begin (delete-file-recursively "src/llvm") #t))
     (patches (map search-patch patches))))
 
+(define* (rust-bootstrapped-package base-rust version checksum
+                                    #:key (patches '()))
+  "Bootstrap rust VERSION with source checksum CHECKSUM patched with PATCHES using BASE-RUST."
+  (package
+    (inherit base-rust)
+    (version version)
+    (source
+     (rust-source version checksum #:patches patches))
+    (native-inputs
+     (alist-replace "cargo-bootstrap" (list base-rust "cargo")
+                    (alist-replace "rustc-bootstrap" (list base-rust)
+                                   (package-native-inputs base-rust))))))
+
+(define-public mrustc
+  (let ((rustc-version "1.19.0"))
+    (package
+      (name "mrustc")
+      (version "0.8.0")
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/thepowersgang/mrustc.git")
+                      (commit (string-append "v" version))))
+                (file-name (git-file-name name version))
+                (sha256
+                 (base32
+                  "0a7v8ccyzp1sdkwni8h1698hxpfz2sxhcpx42n6l2pbm0rbjp08i"))))
+      (outputs '("out" "cargo"))
+      (build-system gnu-build-system)
+      (inputs
+       `(("llvm" ,llvm-3.9.1)))
+      (native-inputs
+       `(("bison" ,bison)
+         ("flex" ,flex)
+         ;; Required for the libstd sources.
+         ("rustc"
+          ,(rust-source "1.19.0" "0l8c14qsf42rmkqy92ahij4vf356dbyspxcips1aswpvad81y8qm"))))
+      (arguments
+       `(#:tests? #f
+         #:make-flags (list (string-append "LLVM_CONFIG="
+                                           (assoc-ref %build-inputs "llvm")
+                                           "/bin/llvm-config"))
+         #:phases
+         (modify-phases %standard-phases
+          (add-after 'unpack 'patch-date
+            (lambda _
+              (substitute* "Makefile"
+               (("shell date") "shell date -d @1"))
+              #t))
+           (add-after 'patch-date 'unpack-target-compiler
+             (lambda* (#:key inputs outputs #:allow-other-keys)
+               (substitute* "minicargo.mk"
+                 ;; Don't try to build LLVM.
+                 (("^[$][(]LLVM_CONFIG[)]:") "xxx:")
+                 ;; Build for the correct target architecture.
+                 (("^RUSTC_TARGET := x86_64-unknown-linux-gnu")
+                  (string-append "RUSTC_TARGET := "
+                                 ,(or (%current-target-system)
+                                      (nix-system->gnu-triplet-for-rust)))))
+               (invoke "tar" "xf" (assoc-ref inputs "rustc"))
+               (chdir "rustc-1.19.0-src")
+               (invoke "patch" "-p0" "../rust_src.patch")
+               (chdir "..")
+               #t))
+           (replace 'configure
+             (lambda* (#:key inputs #:allow-other-keys)
+               (setenv "CC" (string-append (assoc-ref inputs "gcc") "/bin/gcc"))
+               #t))
+           (add-after 'build 'build-minicargo
+             (lambda _
+               (for-each (lambda (target)
+                           (invoke "make" "-f" "minicargo.mk" target))
+                         '("output/libstd.hir" "output/libpanic_unwind.hir"
+                           "output/libproc_macro.hir" "output/libtest.hir"))
+               ;; Technically the above already does it - but we want to be clear.
+               (invoke "make" "-C" "tools/minicargo")))
+           (replace 'install
+             (lambda* (#:key inputs outputs #:allow-other-keys)
+               (let* ((out (assoc-ref outputs "out"))
+                      (bin (string-append out "/bin"))
+                      (tools-bin (string-append out "/tools/bin"))
+                      (cargo-out (assoc-ref outputs "cargo"))
+                      (cargo-bin (string-append cargo-out "/bin"))
+                      (lib (string-append out "/lib"))
+                      (lib/rust (string-append lib "/mrust"))
+                      (gcc (assoc-ref inputs "gcc")))
+                 ;; These files are not reproducible.
+                 (for-each delete-file (find-files "output" "\\.txt$"))
+                 (mkdir-p lib)
+                 (copy-recursively "output" lib/rust)
+                 (mkdir-p bin)
+                 (mkdir-p tools-bin)
+                 (install-file "bin/mrustc" bin)
+                 ;; minicargo uses relative paths to resolve mrustc.
+                 (install-file "tools/bin/minicargo" tools-bin)
+                 (install-file "tools/bin/minicargo" cargo-bin)
+                 #t))))))
+      (synopsis "Compiler for the Rust progamming language")
+      (description "Rust is a systems programming language that provides memory
+safety and thread safety guarantees.")
+      (home-page "https://github.com/thepowersgang/mrustc")
+      ;; Dual licensed.
+      (license (list license:asl2.0 license:expat)))))
+
 (define rust-1.19
   (package
     (name "rust")
     (version "1.19.0")
-    (source (rust-source version "0l8c14qsf42rmkqy92ahij4vf356dbyspxcips1aswpvad81y8qm"))
+    (source (rust-source version "0l8c14qsf42rmkqy92ahij4vf356dbyspxcips1aswpvad81y8qm"
+            #:patches '("rust-1.19-mrustc.patch")))
     (outputs '("out" "cargo"))
     (arguments
      `(#:imported-modules ,%cargo-build-system-modules ;for `generate-checksums'
+       #:modules ((guix build utils) (ice-9 match) (guix build gnu-build-system))
        #:phases
        (modify-phases %standard-phases
          (add-after 'unpack 'set-env
@@ -187,6 +293,24 @@ in turn be used to build the final Rust.")
              ;; guix llvm-3.9.1 package installs only shared libraries
              (setenv "LLVM_LINK_SHARED" "1")
              #t))
+         (add-after 'unpack 'patch-cargo-tomls
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (substitute* "src/librustc_errors/Cargo.toml"
+               (("[[]dependencies[]]") "
+[dependencies]
+term = \"0.4.4\"
+"))
+             (substitute* "src/librustc/Cargo.toml"
+               (("[[]dependencies[]]") "
+[dependencies]
+getopts = { path = \"../libgetopts\" }
+"))
+             (substitute* "src/librustdoc/Cargo.toml"
+               (("[[]dependencies[]]") "
+[dependencies]
+test = { path = \"../libtest\" }
+"))
+             #t))
          (add-after 'unpack 'patch-tests
            (lambda* (#:key inputs #:allow-other-keys)
              (let ((bash (assoc-ref inputs "bash")))
@@ -243,12 +367,97 @@ in turn be used to build the final Rust.")
                   (generate-checksums dir ,%cargo-reference-project-file)))
               (find-files "src/vendor" ".cargo-checksum.json"))
              #t))
+         ;; This phase is overridden by newer versions.
          (replace 'configure
            (const #t))
+         ;; This phase is overridden by newer versions.
+         (replace 'build
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let ((rustc-bootstrap (assoc-ref inputs "rustc-bootstrap")))
+               (setenv "CFG_COMPILER_HOST_TRIPLE"
+                ,(nix-system->gnu-triplet (%current-system)))
+               (setenv "CFG_RELEASE" "")
+               (setenv "CFG_RELEASE_CHANNEL" "stable")
+               (setenv "CFG_LIBDIR_RELATIVE" "lib")
+               (setenv "CFG_VERSION" "1.19.0-stable-mrustc")
+               ; bad: (setenv "CFG_PREFIX" "mrustc") ; FIXME output path.
+               (mkdir-p "output")
+               (invoke (string-append rustc-bootstrap "/tools/bin/minicargo")
+                       "src/rustc" "--vendor-dir" "src/vendor"
+                       "--output-dir" "output/rustc-build"
+                       "-L" (string-append rustc-bootstrap "/lib/mrust")
+                       "-j" "1")
+               (install-file "output/rustc-build/rustc" "output") ; FIXME: Remove?
+               (setenv "CFG_COMPILER_HOST_TRIPLE" #f)
+               (setenv "CFG_RELEASE" #f)
+               (setenv "CFG_RELEASE_CHANNEL" #f)
+               (setenv "CFG_VERSION" #f)
+               (setenv "CFG_PREFIX" #f)
+               (setenv "CFG_LIBDIR_RELATIVE" #f)
+               (invoke (string-append rustc-bootstrap "/tools/bin/minicargo")
+                       "src/tools/cargo" "--vendor-dir" "src/vendor"
+                       "--output-dir" "output/cargo-build"
+                       "-L" "output/"
+                       "-L" (string-append rustc-bootstrap "/lib/mrust")
+                       "-j" "1")
+               ;; Now use the newly-built rustc to build the libraries.
+               ;; One day that could be replaced by:
+               ;; (invoke "output/cargo-build/cargo" "build"
+               ;;         "--manifest-path" "src/bootstrap/Cargo.toml"
+               ;;         "--verbose") ; "--locked" "--frozen"
+               ;; but right now, Cargo has problems with libstd's circular
+               ;; dependencies.
+               (mkdir-p "output/target-libs")
+               (for-each ((@ (ice-9 match) match-lambda)
+                          ((name . flags)
+                            (write name)
+                            (newline)
+                            (apply invoke
+                                   "output/rustc-build/rustc"
+                                   "-C" (string-append "linker="
+                                                       (getenv "CC"))
+                                   "-L" "output/target-libs"
+                                   (string-append "src/" name "/lib.rs")
+                                   "-o"
+                                   (string-append "output/target-libs/"
+                                                  (car (string-split name #\/))
+                                                  ".rlib")
+                                   flags)))
+                         '(("libcore")
+                           ("libstd_unicode")
+                           ("liballoc")
+                           ("libcollections")
+                           ("librand")
+                           ("liblibc/src" "--cfg" "stdbuild")
+                           ("libunwind" "-l" "gcc_s")
+                           ("libcompiler_builtins")
+                           ("liballoc_system")
+                           ("libpanic_unwind")
+                           ;; Uses "cc" to link.
+                           ("libstd" "-l" "dl" "-l" "rt" "-l" "pthread")
+                           ("libarena")))
+               #t)))
+         ;; This phase is overridden by newer versions.
          (replace 'check
            (const #t))
+         ;; This phase is overridden by newer versions.
          (replace 'install
-           (const #t)))))
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (target-system ,(or (%current-target-system)
+                                        (nix-system->gnu-triplet
+                                         (%current-system))))
+                    (out-libs (string-append out "/lib/rustlib/"
+                                             target-system "/lib")))
+                                        ;(setenv "CFG_PREFIX" out)
+               (mkdir-p out-libs)
+               (copy-recursively "output/target-libs" out-libs)
+               (install-file "output/rustc-build/rustc"
+                             (string-append out "/bin"))
+               (install-file "output/cargo-build/cargo"
+                             (string-append (assoc-ref outputs "cargo")
+                                            "/bin")))
+             #t)))))
     (build-system gnu-build-system)
     (native-inputs
      `(("bison" ,bison) ; For the tests
@@ -258,8 +467,8 @@ in turn be used to build the final Rust.")
        ("git" ,git)
        ("procps" ,procps) ; For the tests
        ("python-2" ,python-2)
-       ("rustc-bootstrap" ,rust-bootstrap)
-       ("cargo-bootstrap" ,rust-bootstrap "cargo")
+       ("rustc-bootstrap" ,mrustc)
+       ("cargo-bootstrap" ,mrustc "cargo")
        ("pkg-config" ,pkg-config) ; For "cargo"
        ("which" ,which)))
     (inputs
@@ -289,110 +498,6 @@ safety and thread safety guarantees.")
     ;; Dual licensed.
     (license (list license:asl2.0 license:expat))))
 
-(define* (rust-bootstrapped-package base-rust version checksum
-                                    #:key (patches '()))
-  "Bootstrap rust VERSION with source checksum CHECKSUM patched with PATCHES using BASE-RUST."
-  (package
-    (inherit base-rust)
-    (version version)
-    (source
-     (rust-source version checksum #:patches patches))
-    (native-inputs
-     (alist-replace "cargo-bootstrap" (list base-rust "cargo")
-                    (alist-replace "rustc-bootstrap" (list base-rust)
-                                   (package-native-inputs base-rust))))))
-
-(define-public mrustc
-  (let ((rustc-version "1.19.0"))
-    (package
-      (name "mrustc")
-      (version "0.8.0")
-      (source (origin
-                (method git-fetch)
-                (uri (git-reference
-                      (url "https://github.com/thepowersgang/mrustc.git")
-                      (commit (string-append "v" version))))
-                (file-name (git-file-name name version))
-                (sha256
-                 (base32
-                  "0a7v8ccyzp1sdkwni8h1698hxpfz2sxhcpx42n6l2pbm0rbjp08i"))))
-      (outputs '("out" "cargo"))
-      (build-system gnu-build-system)
-      (inputs
-       `(("llvm" ,llvm-3.9.1)))
-      (native-inputs
-       `(("bison" ,bison)
-         ("flex" ,flex)
-         ;; Required for the libstd sources.
-         ("rustc"
-          ,(rust-source "1.19.0" "0l8c14qsf42rmkqy92ahij4vf356dbyspxcips1aswpvad81y8qm"))))
-      (arguments
-       `(#:tests? #f
-         #:make-flags (list (string-append "LLVM_CONFIG="
-                                           (assoc-ref %build-inputs "llvm")
-                                           "/bin/llvm-config"))
-         #:phases
-         (modify-phases %standard-phases
-          (add-after 'unpack 'patch-date
-            (lambda _
-              (substitute* "Makefile"
-               (("shell date") "shell date -d @1"))
-              #t))
-           (add-after 'patch-date 'unpack-target-compiler
-             (lambda* (#:key inputs outputs #:allow-other-keys)
-               (substitute* "minicargo.mk"
-                 ;; Don't try to build LLVM.
-                 (("^[$][(]LLVM_CONFIG[)]:") "xxx:")
-                 ;; Build for the correct target architecture.
-                 (("^RUSTC_TARGET := x86_64-unknown-linux-gnu")
-                  (string-append "RUSTC_TARGET := "
-                                 ,(or (%current-target-system)
-                                      (nix-system->gnu-triplet-for-rust)))))
-               (invoke "tar" "xf" (assoc-ref inputs "rustc"))
-               (chdir "rustc-1.19.0-src")
-               (invoke "patch" "-p0" "../rust_src.patch")
-               (chdir "..")
-               #t))
-           (replace 'configure
-             (lambda* (#:key inputs #:allow-other-keys)
-               (setenv "CC" (string-append (assoc-ref inputs "gcc") "/bin/gcc"))
-               #t))
-           (add-after 'build 'build-minicargo
-             (lambda _
-               (for-each (lambda (target)
-                           (invoke "make" "-f" "minicargo.mk" target))
-                         '("output/libstd.hir" "output/libpanic_unwind.hir"
-                           "output/libproc_macro.hir" "output/libtest.hir"))
-               ;; Technically the above already does it - but we want to be clear.
-               (invoke "make" "-C" "tools/minicargo")))
-           (replace 'install
-             (lambda* (#:key inputs outputs #:allow-other-keys)
-               (let* ((out (assoc-ref outputs "out"))
-                      (bin (string-append out "/bin"))
-                      (tools-bin (string-append out "/tools/bin"))
-                      (cargo-out (assoc-ref outputs "cargo"))
-                      (cargo-bin (string-append cargo-out "/bin"))
-                      (lib (string-append out "/lib"))
-                      (lib/rust (string-append lib "/mrust"))
-                      (gcc (assoc-ref inputs "gcc")))
-                 ;; These files are not reproducible.
-                 (for-each delete-file (find-files "output" "\\.txt$"))
-                 (mkdir-p lib)
-                 (copy-recursively "output" lib/rust)
-                 (mkdir-p bin)
-                 (mkdir-p tools-bin)
-                 (install-file "bin/mrustc" bin)
-                 ;; minicargo uses relative paths to resolve mrustc.
-                 (install-file "tools/bin/minicargo" tools-bin)
-                 (install-file "tools/bin/minicargo" cargo-bin)
-                 #t))))))
-      (synopsis "Compiler for the Rust progamming language")
-      (description "Rust is a systems programming language that provides memory
-safety and thread safety guarantees.")
-      (home-page "https://github.com/thepowersgang/mrustc")
-      ;; Dual licensed.
-      (license (list license:asl2.0 license:expat)))))
-
 (define-public rust-1.23
   (package
     (inherit rust-1.19)
@@ -400,6 +505,18 @@ safety and thread safety guarantees.")
     (version "1.23.0")
     (source (rust-source version "14fb8vhjzsxlbi6yrn1r6fl5dlbdd1m92dn5zj5gmzfwf4w9ar3l"))
     (outputs '("out" "doc" "cargo"))
+    (native-inputs
+     `(("bison" ,bison) ; For the tests
+       ("cmake" ,cmake)
+       ("flex" ,flex) ; For the tests
+       ("gdb" ,gdb)   ; For the tests
+       ("git" ,git)
+       ("procps" ,procps) ; For the tests
+       ("python-2" ,python-2)
+       ("rustc-bootstrap" ,rust-bootstrap)
+       ("cargo-bootstrap" ,rust-bootstrap "cargo")
+       ("pkg-config" ,pkg-config) ; For "cargo"
+       ("which" ,which)))
     (arguments
      (substitute-keyword-arguments (package-arguments rust-1.19)
        ((#:phases phases)
@@ -410,6 +527,8 @@ safety and thread safety guarantees.")
                (substitute* "src/binaryen/CMakeLists.txt"
                  (("ADD_COMPILE_FLAG\\(\\\"-march=native\\\"\\)") ""))
                #t))
+           ;; TODO: Revisit this and find out whether that's needed after all.
+           (delete 'patch-cargo-tomls)
            (add-after 'patch-tests 'patch-cargo-tests
              (lambda _
                (substitute* "src/tools/cargo/tests/build.rs"
diff --git a/gnu/packages/samba.scm b/gnu/packages/samba.scm
index 16b9470e7c..a6d6ee30cd 100644
--- a/gnu/packages/samba.scm
+++ b/gnu/packages/samba.scm
@@ -150,14 +150,14 @@ anywhere.")
 (define-public samba
   (package
     (name "samba")
-    (version "4.8.4")
+    (version "4.8.5")
     (source (origin
              (method url-fetch)
              (uri (string-append "https://download.samba.org/pub/samba/stable/"
                                  "samba-" version ".tar.gz"))
              (sha256
               (base32
-               "01jlk8xlawfp3yyhi5migcd1fy7dkavbh56in444m281kqa4s17m"))))
+               "0mailvhjsma19k6b6zjl02z9n2hbbyfybvicjfw2hh9d4sqyd3p5"))))
     (build-system gnu-build-system)
     (arguments
      `(#:phases
@@ -341,14 +341,14 @@ many event types, including timers, signals, and the classic file descriptor eve
 (define-public ldb
   (package
     (name "ldb")
-    (version "1.3.3")
+    (version "1.3.6")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://www.samba.org/ftp/ldb/ldb-"
                                   version ".tar.gz"))
               (sha256
                (base32
-                "14gsrm7dvyjpbpnc60z75j6fz2p187abm2h353lq95kx2bv70c1b"))
+                "16lkz3gyvsm9als1wyimsl573hclr72xy6454mshwjanncs33lji"))
               (modules '((guix build utils)))
               (snippet
                '(begin
@@ -417,7 +417,8 @@ key-value pair databases and a real LDAP database.")
                  (("/usr/include/crypt\\.h")
                   (string-append libc "/include/crypt.h"))
                  (("/usr/include/pcap-bpf.h")
-                  (string-append libpcap "/include/pcap-bpf.h")))))))))
+                  (string-append libpcap "/include/pcap-bpf.h")))
+               #t))))))
     (inputs
      `(("libpcap" ,libpcap)))
     (synopsis "Implementation of the Point-to-Point Protocol")
diff --git a/gnu/packages/ssh.scm b/gnu/packages/ssh.scm
index 66cacff12f..ebb99e84f0 100644
--- a/gnu/packages/ssh.scm
+++ b/gnu/packages/ssh.scm
@@ -427,6 +427,7 @@ TCP, not the SSH protocol.")
               (uri (string-append
                     "https://matt.ucc.asn.au/" name "/releases/"
                     name "-" version ".tar.bz2"))
+              (patches (search-patches "dropbear-CVE-2018-15599.patch"))
               (sha256
                (base32
                 "0rgavbzw7jrs5wslxm0dnwx2m409yzxd9hazd92r7kx8xikr3yzj"))))
diff --git a/gnu/packages/statistics.scm b/gnu/packages/statistics.scm
index 5c01a4ae06..64c331d28c 100644
--- a/gnu/packages/statistics.scm
+++ b/gnu/packages/statistics.scm
@@ -2455,13 +2455,13 @@ disk (or a connection).")
 (define-public r-plotrix
   (package
     (name "r-plotrix")
-    (version "3.7-2")
+    (version "3.7-3")
     (source (origin
               (method url-fetch)
               (uri (cran-uri "plotrix" version))
               (sha256
                (base32
-                "0hx3xv94gzlyy7ny5k4mzs7w1798h1zka175m5bkzc524493cm88"))))
+                "18702y1gbyis56mh219z5ww0nrkh6qx7bgqv3khyn80g2giwk7cf"))))
     (build-system r-build-system)
     (home-page "https://cran.r-project.org/web/packages/plotrix")
     (synopsis "Various plotting functions")
@@ -5172,14 +5172,14 @@ Companion to Applied Regression, Third Edition, Sage.")
 (define-public r-car
   (package
     (name "r-car")
-    (version "3.0-1")
+    (version "3.0-2")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "car" version))
        (sha256
         (base32
-         "0rdk7hgahs38j6yv861i31wpmsmyvksxcv8jarvvcjl60whizhb2"))))
+         "0l3wyc9ia0ypcbap2p39slazfpbl84mjzydqvpsywrzdiyxajnfz"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-abind" ,r-abind)
diff --git a/gnu/packages/tls.scm b/gnu/packages/tls.scm
index 02c12c9446..f638c6094c 100644
--- a/gnu/packages/tls.scm
+++ b/gnu/packages/tls.scm
@@ -122,7 +122,7 @@ in intelligent transportation networks.")
 (define-public p11-kit
   (package
     (name "p11-kit")
-    (version "0.23.13")
+    (version "0.23.14")
     (source
      (origin
       (method url-fetch)
@@ -130,7 +130,7 @@ in intelligent transportation networks.")
                           "download/" version "/p11-kit-" version ".tar.gz"))
       (sha256
        (base32
-        "1w92k6p4bhg8p24igfb6ifc6vixr2zdjh3x6gjhsphy778z40rda"))))
+        "0w0dkq9388grbbn4bv2p55vy1j51f7nd9hzlc9gz4fbm4dnzmf8w"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)))
diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm
index 6825cd7d2d..3e074e6c3f 100644
--- a/gnu/packages/video.scm
+++ b/gnu/packages/video.scm
@@ -2217,7 +2217,8 @@ making @dfn{screencasts}.")
        ("jack" ,jack-1)
        ("libxi" ,libxi)
        ("pulseaudio" ,pulseaudio)
-       ("qt" ,qt)))
+       ("qtbase" ,qtbase)
+       ("qtx11extras" ,qtx11extras)))
     (native-inputs `(("pkg-config" ,pkg-config)))
     (arguments
      `(#:configure-flags
diff --git a/gnu/packages/web.scm b/gnu/packages/web.scm
index f3412c275e..001644c195 100644
--- a/gnu/packages/web.scm
+++ b/gnu/packages/web.scm
@@ -6,7 +6,7 @@
 ;;; Copyright © 2015, 2016, 2017, 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2018 Raoul Jean Pierre Bonnal <ilpuccio.febo@gmail.com>
 ;;; Copyright © 2015 Taylan Ulrich Bayırlı/Kammer <taylanbayirli@gmail.com>
-;;; Copyright © 2015, 2016, 2017 Eric Bavier <bavier@member.fsf.org>
+;;; Copyright © 2015, 2016, 2017, 2018 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2015 Eric Dvorsak <eric@dvorsak.fr>
 ;;; Copyright © 2016 Sou Bunnbu <iyzsong@gmail.com>
 ;;; Copyright © 2016 Jelle Licht <jlicht@fsfe.org>
@@ -4275,7 +4275,7 @@ tools they trust (e.g. wget).")
 (define netsurf-buildsystem
   (package
     (name "netsurf-buildsystem")
-    (version "1.6")
+    (version "1.7")
     (source
      (origin
        (method url-fetch)
@@ -4283,7 +4283,7 @@ tools they trust (e.g. wget).")
                            "buildsystem-" version ".tar.gz"))
        (sha256
         (base32
-         "0p5k708lcq8dip9xxck6hml32bjrbyipprm22bbsvdnsc0pqm71x"))))
+         "1q23aaycv35ma5471l1gxib8lfq2s9kprrkaqgfc926d04rlbmhw"))))
     (build-system gnu-build-system)
     (inputs `(("perl" ,perl)))
     (arguments
@@ -4314,7 +4314,7 @@ libraries.")
 (define-public libparserutils
   (package
     (name "libparserutils")
-    (version "0.2.3")
+    (version "0.2.4")
     (source
      (origin
        (method url-fetch)
@@ -4322,7 +4322,7 @@ libraries.")
                            name "-" version "-src.tar.gz"))
        (sha256
         (base32
-         "01gzlsabgl6x0icd8758d9jqs8rrf9574bdkjainn04w3fs3znf5"))))
+         "1n2794y2l0c8nv8z2pxwfnbn882987ifmxjv60zdxkhcndhswarj"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("netsurf-buildsystem" ,netsurf-buildsystem)
@@ -4339,7 +4339,7 @@ C.  It is developed as part of the NetSurf project.")
 (define-public hubbub
   (package
     (name "hubbub")
-    (version "0.3.4")
+    (version "0.3.5")
     (source
      (origin
        (method url-fetch)
@@ -4347,7 +4347,7 @@ C.  It is developed as part of the NetSurf project.")
                            "lib" name "-" version "-src.tar.gz"))
        (sha256
         (base32
-         "1shi4hv8drn9zy8f2f6yhnz2dqnpg5jkybvqhzggfjx1q35fbxz3"))
+         "13yq1k96a7972x4r71i9bcsz9yiglj0yx7lj0ziq5r94w5my70ma"))
        (patches (search-patches "hubbub-sort-entities.patch"))))
     (build-system gnu-build-system)
     (native-inputs
@@ -4453,7 +4453,7 @@ commenting.")
 (define-public libwapcaplet
   (package
     (name "libwapcaplet")
-    (version "0.4.0")
+    (version "0.4.1")
     (source
      (origin
        (method url-fetch)
@@ -4461,7 +4461,7 @@ commenting.")
                            name "-" version "-src.tar.gz"))
        (sha256
         (base32
-         "15yr0pl6qa6biy36qkmd949ydbjzpqiaccpx3sprh4jknabsk1vv"))))
+         "134pljlm8kby1yy49826f0ixnpig8iqak6xpyl3aivagnsjnxzy8"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("netsurf-buildsystem" ,netsurf-buildsystem)
@@ -4479,7 +4479,7 @@ developed as part of the Netsurf project.")
 (define-public libcss
   (package
     (name "libcss")
-    (version "0.7.0")
+    (version "0.8.0")
     (source
      (origin
        (method url-fetch)
@@ -4487,7 +4487,7 @@ developed as part of the Netsurf project.")
                            name "-" version "-src.tar.gz"))
        (sha256
         (base32
-         "16mns3h8vj7iw8myvgnw58q84irvbjlvfkxh8mdw6fbkjvaa7cnz"))))
+         "0pxdqbxn6brj03nv57bsvac5n70k4scn3r5msaw0jgn2k06lk81m"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("netsurf-buildsystem" ,netsurf-buildsystem)
@@ -4507,7 +4507,7 @@ written in C.  It is developed as part of the NetSurf project.")
 (define-public libdom
   (package
     (name "libdom")
-    (version "0.3.2")
+    (version "0.3.3")
     (source
      (origin
        (method url-fetch)
@@ -4515,7 +4515,7 @@ written in C.  It is developed as part of the NetSurf project.")
                            name "-" version "-src.tar.gz"))
        (sha256
         (base32
-         "1zb7x2qwm6p11lph6j2vcyp4a0a8i1klkqilnk5vb4qmlzzpcv7i"))))
+         "1919757mdl3gii2pl6kzm8b1cal0h06r5nqd2y0kny6hc5yrhsp0"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("netsurf-buildsystem" ,netsurf-buildsystem)
@@ -4543,7 +4543,7 @@ developed as part of the NetSurf project.")
 (define-public libsvgtiny
   (package
     (name "libsvgtiny")
-    (version "0.1.6")
+    (version "0.1.7")
     (source
      (origin
        (method url-fetch)
@@ -4551,7 +4551,7 @@ developed as part of the NetSurf project.")
                            name "-" version "-src.tar.gz"))
        (sha256
         (base32
-         "12ppy2r7m21ykrjgbf067cgi6dn48fkj7i4b7m64xl4dc13y0ah6"))))
+         "10bpkmvfpydj74im3r6kqm9vnvgib6afy0alx71q5n0w5yawy39c"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("netsurf-buildsystem" ,netsurf-buildsystem)
@@ -4574,7 +4574,7 @@ project.")
 (define-public libnsbmp
   (package
     (name "libnsbmp")
-    (version "0.1.4")
+    (version "0.1.5")
     (source
      (origin
        (method url-fetch)
@@ -4582,7 +4582,7 @@ project.")
                            name "-" version "-src.tar.gz"))
        (sha256
         (base32
-         "0y4a0gn4l6lq4z9183wix0mdsgalqyw24k19k8jr8sz4h3lb7jrb"))))
+         "0lib2m07d1i0k80m4blkwnj0g7rha4jbm5vrgd0wwbkyfa0hvk35"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("netsurf-buildsystem" ,netsurf-buildsystem)))
@@ -4597,7 +4597,7 @@ written in C.  It is developed as part of the NetSurf project.")
 (define-public libnsgif
   (package
     (name "libnsgif")
-    (version "0.2.0")
+    (version "0.2.1")
     (source
      (origin
        (method url-fetch)
@@ -4605,7 +4605,7 @@ written in C.  It is developed as part of the NetSurf project.")
                            name "-" version "-src.tar.gz"))
        (sha256
         (base32
-         "1phwf0m24m6nd7096fw14hanl4f8gr9bcppi834lbik04agxk38a"))))
+         "0jwshypgmx16xlsbx3d8njk8a5khazlplca5mxd3rdbhrlsabbly"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("netsurf-buildsystem" ,netsurf-buildsystem)))
@@ -4620,7 +4620,7 @@ C.  It is developed as part of the NetSurf project.")
 (define-public libnsutils
   (package
     (name "libnsutils")
-    (version "0.0.3")
+    (version "0.0.5")
     (source
      (origin
        (method url-fetch)
@@ -4628,7 +4628,7 @@ C.  It is developed as part of the NetSurf project.")
                            name "-" version "-src.tar.gz"))
        (sha256
         (base32
-         "0wrxn4rcn7xrfnkmf60jafqn3n1kicgsdpnakd821q56bmqvzf0m"))))
+         "09w1rixps1iiq6wirjwxmd6h87llvjzvw565rahjb3rlyhcplfqf"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("netsurf-buildsystem" ,netsurf-buildsystem)))
@@ -4643,7 +4643,7 @@ developed as part of the NetSurf project.")
 (define-public libnspsl
   (package
     (name "libnspsl")
-    (version "0.1.2")
+    (version "0.1.3")
     (source
      (origin
        (method url-fetch)
@@ -4651,7 +4651,7 @@ developed as part of the NetSurf project.")
                            name "-" version "-src.tar.gz"))
        (sha256
         (base32
-         "0wim5hwzwrfrvvap096whf79m2mnfivbqhqlh03ci9d89xb1w0y9"))))
+         "1rsk1k2a495axxgv8060s0p1phhhcxrv75252kllbkvr8id5kqld"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("netsurf-buildsystem" ,netsurf-buildsystem)))
@@ -4666,7 +4666,7 @@ Public Suffix List.  It is developed as part of the NetSurf project.")
 (define-public nsgenbind
   (package
     (name "nsgenbind")
-    (version "0.5")
+    (version "0.6")
     (source
      (origin
        (method url-fetch)
@@ -4674,7 +4674,7 @@ Public Suffix List.  It is developed as part of the NetSurf project.")
                            name "-" version "-src.tar.gz"))
        (sha256
         (base32
-         "1iwjpdaan0njlhb9ir6a2q5vpxfmkqfldkvnqszqdz50b44vd1jv"))))
+         "0v1cb1rz5fix9ql31nzmglj7sybya6d12b2fkaypm1avcca59xwj"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("netsurf-buildsystem" ,netsurf-buildsystem)
@@ -4694,7 +4694,7 @@ w3c webidl files and a binding configuration file.")
 (define-public netsurf
   (package
     (name "netsurf")
-    (version "3.7")
+    (version "3.8")
     (source
      (origin
        (method url-fetch)
@@ -4702,10 +4702,11 @@ w3c webidl files and a binding configuration file.")
                            "releases/source/netsurf-" version "-src.tar.gz"))
        (sha256
         (base32
-         "05kynfzzwd4fc03vbqdjpghh5xnk2yrh43w7vikak89vla30mhpg"))
+         "0hjm1h4m1i913y4mhkl7yqdifn8k70fwi58zdh6faypawzryc3m0"))
        (patches (search-patches "netsurf-system-utf8proc.patch"
                                 "netsurf-y2038-tests.patch"
-                                "netsurf-longer-test-timeout.patch"))))
+                                "netsurf-longer-test-timeout.patch"
+                                "netsurf-message-timestamp.patch"))))
     (build-system glib-or-gtk-build-system)
     (native-inputs
      `(("netsurf-buildsystem" ,netsurf-buildsystem)
diff --git a/gnu/packages/wine.scm b/gnu/packages/wine.scm
index 9c1257b2a1..b818a3ccb5 100644
--- a/gnu/packages/wine.scm
+++ b/gnu/packages/wine.scm
@@ -225,7 +225,7 @@ integrate Windows applications into your desktop.")
 (define-public wine-staging-patchset-data
   (package
    (name "wine-staging-patchset-data")
-   (version "3.14")
+   (version "3.15")
    (source
     (origin
       (method git-fetch)
@@ -235,7 +235,7 @@ integrate Windows applications into your desktop.")
       (file-name (git-file-name name version))
       (sha256
        (base32
-        "0h6gck0p92hin0m13q1hnlfnqs4vy474w66ppinvqms2zn3vibgi"))))
+        "1rgbx4qnxaarkq5n8nvj57q0rhxcqbwm5897ws962fgxh6zymg9n"))))
    (build-system trivial-build-system)
    (native-inputs
     `(("bash" ,bash)
@@ -281,7 +281,7 @@ integrate Windows applications into your desktop.")
               (file-name (string-append name "-" version ".tar.xz"))
               (sha256
                (base32
-                "01dhn3a6k3dwnrbz4bxvszhh5sxwy6s89y459g805hjmq8s6d2a7"))))
+                "07mmd8r70ciqrxzdg2m2mg34kcnb43dk9nw1ljm8jbcznsawv8ic"))))
     (inputs `(("autoconf" ,autoconf) ; for autoreconf
               ("gtk+" ,gtk+)
               ("libva" ,libva)
diff --git a/gnu/services/dns.scm b/gnu/services/dns.scm
index 2c57a36b84..16bd039f59 100644
--- a/gnu/services/dns.scm
+++ b/gnu/services/dns.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2017 Julien Lepiller <julien@lepiller.eu>
+;;; Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -45,7 +46,10 @@
             zone-entry
 
             dnsmasq-service-type
-            dnsmasq-configuration))
+            dnsmasq-configuration
+
+            ddclient-service-type
+            ddclient-configuration))
 
 ;;;
 ;;; Knot DNS.
@@ -670,3 +674,165 @@
                              (compose list dnsmasq-shepherd-service))))
    (default-value (dnsmasq-configuration))
    (description "Run the dnsmasq DNS server.")))
+
+
+;;;
+;;; ddclient
+;;;
+
+(define (uglify-field-name field-name)
+  (string-delete #\? (symbol->string field-name)))
+
+(define (serialize-field field-name val)
+  (format #t "~a=~a\n" (uglify-field-name field-name) val))
+
+(define (serialize-boolean field-name val)
+  (serialize-field field-name (if val "yes" "no")))
+
+(define (serialize-integer field-name val)
+  (serialize-field field-name (number->string val)))
+
+(define (serialize-string field-name val)
+  (if (and (string? val) (string=? val ""))
+      ""
+      (serialize-field field-name val)))
+
+(define (serialize-list field-name val)
+  (if (null? val) "" (serialize-field field-name (string-join val))))
+
+(define (serialize-extra-options extra-options)
+  (string-join extra-options "\n" 'suffix))
+
+(define-configuration ddclient-configuration
+  (ddclient
+   (package ddclient)
+   "The ddclient package.")
+  (daemon
+   (integer 300)
+   "The period after which ddclient will retry to check IP and domain name.")
+  (syslog
+   (boolean #t)
+   "Use syslog for the output.")
+  (mail
+   (string "root")
+   "Mail to user.")
+  (mail-failure
+   (string "root")
+   "Mail failed update to user.")
+  (pid
+   (string "/var/run/ddclient/ddclient.pid")
+   "The ddclient PID file.")
+  (ssl
+   (boolean #t)
+   "Enable SSL support.")
+  (user
+   (string "ddclient")
+   "Specifies the user name or ID that is used when running ddclient
+program.")
+  (group
+   (string "ddclient")
+   "Group of the user who will run the ddclient program.")
+  (secret-file
+   (string "/etc/ddclient/secrets.conf")
+   "Secret file which will be appended to @file{ddclient.conf} file.  This
+file contains credentials for use by ddclient.  You are expected to create it
+manually.")
+  (extra-options
+   (list '())
+   "Extra options will be appended to @file{ddclient.conf} file."))
+
+(define (ddclient-account config)
+  "Return the user accounts and user groups for CONFIG."
+  (let ((ddclient-user (ddclient-configuration-user config))
+        (ddclient-group (ddclient-configuration-group config)))
+    (list (user-group
+           (name ddclient-group)
+           (system? #t))
+          (user-account
+           (name ddclient-user)
+           (system? #t)
+           (group ddclient-group)
+           (comment "ddclientd privilege separation user")
+           (home-directory (string-append "/var/run/" ddclient-user))))))
+
+(define (ddclient-activation config)
+  "Return the activation GEXP for CONFIG."
+  (with-imported-modules '((guix build utils)
+                           (ice-9 rdelim))
+    #~(begin
+        (use-modules (guix build utils)
+                     (ice-9 rdelim))
+        (let ((ddclient-user
+               #$(passwd:uid (getpw (ddclient-configuration-user config))))
+              (ddclient-group
+               #$(passwd:gid (getpw (ddclient-configuration-group config))))
+              (ddclient-secret-file
+               #$(ddclient-configuration-secret-file config)))
+          ;; 'ddclient' complains about ddclient.conf file permissions, which
+          ;; rules out /gnu/store.  Thus we copy the ddclient.conf to /etc.
+          (for-each (lambda (dir)
+                      (mkdir-p dir)
+                      (chmod dir #o700)
+                      (chown dir ddclient-user ddclient-group))
+                    '("/var/cache/ddclient" "/var/run/ddclient"
+                      "/etc/ddclient"))
+          (with-output-to-file "/etc/ddclient/ddclient.conf"
+            (lambda ()
+              (display
+               (string-append
+                "# Generated by 'ddclient-service'.\n\n"
+                #$(with-output-to-string
+                    (lambda ()
+                      (serialize-configuration config
+                                               ddclient-configuration-fields)))
+                (if (string-null? ddclient-secret-file)
+                    ""
+                    (format #f "\n\n# Appended from '~a'.\n\n~a"
+                            ddclient-secret-file
+                            (with-input-from-file ddclient-secret-file
+                              read-string)))))))
+          (chmod "/etc/ddclient/ddclient.conf" #o600)
+          (chown "/etc/ddclient/ddclient.conf"
+                 ddclient-user ddclient-group)))))
+
+(define (ddclient-shepherd-service config)
+  "Return a <shepherd-service> for ddclient with CONFIG."
+  (let ((ddclient (ddclient-configuration-ddclient config))
+        (ddclient-pid (ddclient-configuration-pid config))
+        (ddclient-user (ddclient-configuration-user config))
+        (ddclient-group (ddclient-configuration-group config)))
+    (list (shepherd-service
+           (provision '(ddclient))
+           (documentation "Run ddclient daemon.")
+           (start #~(make-forkexec-constructor
+                     (list #$(file-append ddclient "/bin/ddclient")
+                           "-foreground"
+                           "-file" "/etc/ddclient/ddclient.conf")
+                     #:pid-file #$ddclient-pid
+                     #:environment-variables
+                     (list "SSL_CERT_DIR=/run/current-system/profile\
+/etc/ssl/certs"
+                           "SSL_CERT_FILE=/run/current-system/profile\
+/etc/ssl/certs/ca-certificates.crt")
+                     #:user #$ddclient-user
+                     #:group #$ddclient-group))
+           (stop #~(make-kill-destructor))))))
+
+(define ddclient-service-type
+  (service-type
+   (name 'ddclient)
+   (extensions
+    (list (service-extension account-service-type
+                             ddclient-account)
+          (service-extension shepherd-root-service-type
+                             ddclient-shepherd-service)
+          (service-extension activation-service-type
+                             ddclient-activation)))
+   (default-value (ddclient-configuration))
+   (description "Configure address updating utility for dynamic DNS services,
+ddclient.")))
+
+(define (generate-ddclient-documentation)
+  (generate-documentation
+   `((ddclient-configuration ,ddclient-configuration-fields))
+   'ddclient-configuration))
diff --git a/gnu/services/networking.scm b/gnu/services/networking.scm
index d5d0cf9d1d..b6b5ee3fec 100644
--- a/gnu/services/networking.scm
+++ b/gnu/services/networking.scm
@@ -7,6 +7,7 @@
 ;;; Copyright © 2017 Thomas Danckaert <post@thomasdanckaert.be>
 ;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2018 Chris Marusich <cmmarusich@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -576,7 +577,9 @@ demand.")))
   (config-file      tor-configuration-config-file
                     (default (plain-file "empty" "")))
   (hidden-services  tor-configuration-hidden-services
-                    (default '())))
+                    (default '()))
+  (socks-socket-type tor-configuration-socks-socket-type ; 'tcp or 'unix
+                     (default 'tcp)))
 
 (define %tor-accounts
   ;; User account and groups for Tor.
@@ -598,7 +601,7 @@ demand.")))
 (define (tor-configuration->torrc config)
   "Return a 'torrc' file for CONFIG."
   (match config
-    (($ <tor-configuration> tor config-file services)
+    (($ <tor-configuration> tor config-file services socks-socket-type)
      (computed-file
       "torrc"
       (with-imported-modules '((guix build utils))
@@ -612,7 +615,12 @@ demand.")))
 ### These lines were generated from your system configuration:
 User tor
 DataDirectory /var/lib/tor
+PidFile /var/run/tor/tor.pid
 Log notice syslog\n" port)
+                (when (eq? 'unix '#$socks-socket-type)
+                  (display "\
+SocksPort unix:/var/run/tor/socks-sock
+UnixSocksGroupWritable 1\n" port))
 
                 (for-each (match-lambda
                             ((service (ports hosts) ...)
@@ -639,7 +647,7 @@ HiddenServicePort ~a ~a~%"
                 #t))))))))
 
 (define (tor-shepherd-service config)
-  "Return a <shepherd-service> running TOR."
+  "Return a <shepherd-service> running Tor."
   (match config
     (($ <tor-configuration> tor)
      (let ((torrc (tor-configuration->torrc config)))
@@ -665,12 +673,17 @@ HiddenServicePort ~a ~a~%"
                                             (writable? #t))
                                            (file-system-mapping
                                             (source "/dev/log") ;for syslog
-                                            (target source)))))
+                                            (target source))
+                                           (file-system-mapping
+                                            (source "/var/run/tor")
+                                            (target source)
+                                            (writable? #t)))
+                          #:pid-file "/var/run/tor/tor.pid"))
                 (stop #~(make-kill-destructor))
                 (documentation "Run the Tor anonymous network overlay."))))))))
 
-(define (tor-hidden-service-activation config)
-  "Return the activation gexp for SERVICES, a list of hidden services."
+(define (tor-activation config)
+  "Set up directories for Tor and its hidden services, if any."
   #~(begin
       (use-modules (guix build utils))
 
@@ -686,6 +699,15 @@ HiddenServicePort ~a ~a~%"
           ;; The daemon bails out if we give wider permissions.
           (chmod directory #o700)))
 
+      ;; Allow Tor to write its PID file.
+      (mkdir-p "/var/run/tor")
+      (chown "/var/run/tor" (passwd:uid %user) (passwd:gid %user))
+      ;; Set the group permissions to rw so that if the system administrator
+      ;; has specified UnixSocksGroupWritable=1 in their torrc file, members
+      ;; of the "tor" group will be able to use the SOCKS socket.
+      (chmod "/var/run/tor" #o750)
+
+      ;; Allow Tor to access the hidden services' directories.
       (mkdir-p "/var/lib/tor")
       (chown "/var/lib/tor" (passwd:uid %user) (passwd:gid %user))
       (chmod "/var/lib/tor" #o700)
@@ -705,7 +727,7 @@ HiddenServicePort ~a ~a~%"
                        (service-extension account-service-type
                                           (const %tor-accounts))
                        (service-extension activation-service-type
-                                          tor-hidden-service-activation)))
+                                          tor-activation)))
 
                 ;; This can be extended with hidden services.
                 (compose concatenate)
diff --git a/gnu/services/ssh.scm b/gnu/services/ssh.scm
index dd96ad6aec..056602248f 100644
--- a/gnu/services/ssh.scm
+++ b/gnu/services/ssh.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2014, 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016 David Craven <david@craven.ch>
 ;;; Copyright © 2016 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2017 Clément Lassieur <clement@lassieur.org>
@@ -319,6 +319,10 @@ The other options should be self-descriptive."
   (accepted-environment  openssh-configuration-accepted-environment
                          (default '()))
 
+  ;; symbol
+  (log-level             openssh-configuration-log-level
+                         (default 'info))
+
   ;; list of user-name/file-like tuples
   (authorized-keys       openssh-authorized-keys
                          (default '()))
@@ -451,6 +455,10 @@ of user-name/file-like tuples."
            (format port "PrintLastLog ~a\n"
                    #$(if (openssh-configuration-print-last-log? config)
                          "yes" "no"))
+           (format port "LogLevel ~a\n"
+                   #$(string-upcase
+                      (symbol->string
+                       (openssh-configuration-log-level config))))
 
            ;; Add '/etc/authorized_keys.d/%u', which we populate.
            (format port "AuthorizedKeysFile \
diff --git a/gnu/services/web.scm b/gnu/services/web.scm
index 97976509b6..467656444e 100644
--- a/gnu/services/web.scm
+++ b/gnu/services/web.scm
@@ -599,19 +599,33 @@ of index files."
                 <nginx-configuration>
                 (nginx file run-directory)
    (let* ((nginx-binary (file-append nginx "/sbin/nginx"))
+          (pid-file (in-vicinity run-directory "pid"))
           (nginx-action
            (lambda args
              #~(lambda _
                  (invoke #$nginx-binary "-c"
                          #$(or file
                                (default-nginx-config config))
-                         #$@args)))))
+                         #$@args)
+                 (match '#$args
+                   (("-s" . _) #t)
+                   (_
+                    (let loop ((duration 0))
+                      ;; https://bugs.launchpad.net/ubuntu/+source/nginx/+bug/1581864/comments/7
+                      (sleep duration)
+                      (if (file-exists? #$pid-file)
+                          (let ((pid (call-with-input-file #$pid-file read)))
+                            ;; it could be #<eof>
+                            (if (integer? pid) pid (loop 1)))
+                          (loop 1)))))))))
 
      ;; TODO: Add 'reload' action.
      (list (shepherd-service
             (provision '(nginx))
             (documentation "Run the nginx daemon.")
             (requirement '(user-processes loopback))
+            (modules `((ice-9 match)
+                       ,@%default-modules))
             (start (nginx-action "-p" run-directory))
             (stop (nginx-action "-s" "stop")))))))
 
diff --git a/gnu/tests.scm b/gnu/tests.scm
index 5d4a4f8062..9e8eed7d95 100644
--- a/gnu/tests.scm
+++ b/gnu/tests.scm
@@ -22,6 +22,7 @@
   #:use-module (guix gexp)
   #:use-module (guix utils)
   #:use-module (guix records)
+  #:use-module ((guix ui) #:select (warn-about-load-error))
   #:use-module (gnu bootloader)
   #:use-module (gnu bootloader grub)
   #:use-module (gnu system)
@@ -258,7 +259,8 @@ the system under test."
 (define (test-modules)
   "Return the list of modules that define system tests."
   (scheme-modules (dirname (search-path %load-path "guix.scm"))
-                  "gnu/tests"))
+                  "gnu/tests"
+                  #:warn warn-about-load-error))
 
 (define (fold-system-tests proc seed)
   "Invoke PROC on each system test, passing it the test and the previous
diff --git a/gnu/tests/networking.scm b/gnu/tests/networking.scm
index 323679e7fc..381c5caf14 100644
--- a/gnu/tests/networking.scm
+++ b/gnu/tests/networking.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2017 Thomas Danckaert <post@thomasdanckaert.be>
 ;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2018 Chris Marusich <cmmarusich@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -30,7 +31,7 @@
   #:use-module (gnu packages bash)
   #:use-module (gnu packages networking)
   #:use-module (gnu services shepherd)
-  #:export (%test-inetd %test-openvswitch %test-dhcpd))
+  #:export (%test-inetd %test-openvswitch %test-dhcpd %test-tor))
 
 (define %inetd-os
   ;; Operating system with 2 inetd services.
@@ -339,3 +340,97 @@ subnet 192.168.1.0 netmask 255.255.255.0 {
    (name "dhcpd")
    (description "Test a running DHCP daemon configuration.")
    (value (run-dhcpd-test))))
+
+
+;;;
+;;; Services related to Tor
+;;;
+
+(define %tor-os
+  (simple-operating-system
+   (tor-service)))
+
+(define %tor-os/unix-socks-socket
+  (simple-operating-system
+   (service tor-service-type
+            (tor-configuration
+             (socks-socket-type 'unix)))))
+
+(define (run-tor-test)
+  (define os
+    (marionette-operating-system %tor-os
+                                 #:imported-modules '((gnu services herd))
+                                 #:requirements '(tor)))
+
+  (define os/unix-socks-socket
+    (marionette-operating-system %tor-os/unix-socks-socket
+                                 #:imported-modules '((gnu services herd))
+                                 #:requirements '(tor)))
+
+  (define test
+    (with-imported-modules '((gnu build marionette))
+      #~(begin
+          (use-modules (gnu build marionette)
+                       (ice-9 popen)
+                       (ice-9 rdelim)
+                       (srfi srfi-64))
+
+          (define marionette
+            (make-marionette (list #$(virtual-machine os))))
+
+          (define (tor-is-alive? marionette)
+            (marionette-eval
+             '(begin
+                (use-modules (gnu services herd)
+                             (srfi srfi-1))
+                (live-service-running
+                 (find (lambda (live)
+                         (memq 'tor
+                               (live-service-provision live)))
+                       (current-services))))
+             marionette))
+
+          (mkdir #$output)
+          (chdir #$output)
+
+          (test-begin "tor")
+
+          ;; Test the usual Tor service.
+
+          (test-assert "tor is alive"
+            (tor-is-alive? marionette))
+
+          (test-assert "tor is listening"
+            (let ((default-port 9050))
+              (wait-for-tcp-port default-port marionette)))
+
+          ;; Don't run two VMs at once.
+          (marionette-control "quit" marionette)
+
+          ;; Test the Tor service using a SOCKS socket.
+
+          (let* ((socket-directory "/tmp/more-sockets")
+                 (_ (mkdir socket-directory))
+                 (marionette/unix-socks-socket
+                  (make-marionette
+                   (list #$(virtual-machine os/unix-socks-socket))
+                   ;; We can't use the same socket directory as the first
+                   ;; marionette.
+                   #:socket-directory socket-directory)))
+            (test-assert "tor is alive, even when using a SOCKS socket"
+              (tor-is-alive? marionette/unix-socks-socket))
+
+            (test-assert "tor is listening, even when using a SOCKS socket"
+              (wait-for-unix-socket "/var/run/tor/socks-sock"
+                                    marionette/unix-socks-socket)))
+
+          (test-end)
+          (exit (= (test-runner-fail-count (test-runner-current)) 0)))))
+
+  (gexp->derivation "tor-test" test))
+
+(define %test-tor
+  (system-test
+   (name "tor")
+   (description "Test a running Tor daemon configuration.")
+   (value (run-tor-test))))
diff --git a/guix/channels.scm b/guix/channels.scm
new file mode 100644
index 0000000000..ec3e05eaf5
--- /dev/null
+++ b/guix/channels.scm
@@ -0,0 +1,292 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2018 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 channels)
+  #:use-module (guix git)
+  #:use-module (guix records)
+  #:use-module (guix gexp)
+  #:use-module (guix discovery)
+  #:use-module (guix monads)
+  #:use-module (guix profiles)
+  #:use-module (guix derivations)
+  #:use-module (guix store)
+  #:use-module (guix i18n)
+  #:use-module (srfi srfi-1)
+  #:use-module (srfi srfi-9)
+  #:use-module (srfi srfi-11)
+  #:autoload   (guix self) (whole-package)
+  #:use-module (ice-9 match)
+  #:export (channel
+            channel?
+            channel-name
+            channel-url
+            channel-branch
+            channel-commit
+            channel-location
+
+            %default-channels
+
+            channel-instance?
+            channel-instance-channel
+            channel-instance-commit
+            channel-instance-checkout
+
+            latest-channel-instances
+            channel-instance-derivations
+            latest-channel-derivations
+            channel-instances->manifest))
+
+;;; Commentary:
+;;;
+;;; This module implements "channels."  A channel is usually a source of
+;;; package definitions.  There's a special channel, the 'guix' channel, that
+;;; provides all of Guix, including its commands and its documentation.
+;;; User-defined channels are expected to typically provide a bunch of .scm
+;;; files meant to be added to the '%package-search-path'.
+;;;
+;;; This module provides tools to fetch and update channels from a Git
+;;; repository and to build them.
+;;;
+;;; Code:
+
+(define-record-type* <channel> channel make-channel
+  channel?
+  (name      channel-name)
+  (url       channel-url)
+  (branch    channel-branch (default "master"))
+  (commit    channel-commit (default #f))
+  (location  channel-location
+             (default (current-source-location)) (innate)))
+;; TODO: Add a way to express dependencies among channels.
+
+(define %default-channels
+  ;; Default list of channels.
+  (list (channel
+         (name 'guix)
+         (branch "origin/master")
+         (url "https://git.savannah.gnu.org/git/guix.git"))))
+
+(define (guix-channel? channel)
+  "Return true if CHANNEL is the 'guix' channel."
+  (eq? 'guix (channel-name channel)))
+
+(define-record-type <channel-instance>
+  (channel-instance channel commit checkout)
+  channel-instance?
+  (channel   channel-instance-channel)
+  (commit    channel-instance-commit)
+  (checkout  channel-instance-checkout))
+
+(define (channel-reference channel)
+  "Return the \"reference\" for CHANNEL, an sexp suitable for
+'latest-repository-commit'."
+  (match (channel-commit channel)
+    (#f      `(branch . ,(channel-branch channel)))
+    (commit  `(commit . ,(channel-commit channel)))))
+
+(define (latest-channel-instances store channels)
+  "Return a list of channel instances corresponding to the latest checkouts of
+CHANNELS."
+  (map (lambda (channel)
+         (format (current-error-port)
+                 (G_ "Updating channel '~a' from Git repository at '~a'...~%")
+                 (channel-name channel)
+                 (channel-url channel))
+         (let-values (((checkout commit)
+                       (latest-repository-commit store (channel-url channel)
+                                                 #:ref (channel-reference
+                                                        channel))))
+           (channel-instance channel commit checkout)))
+       channels))
+
+(define %self-build-file
+  ;; The file containing code to build Guix.  This serves the same purpose as
+  ;; a makefile, and, similarly, is intended to always keep this name.
+  "build-aux/build-self.scm")
+
+(define %pull-version
+  ;; This is the version of the 'guix pull' protocol.  It specifies what's
+  ;; expected from %SELF-BUILD-FILE.  The initial version ("0") was when we'd
+  ;; place a set of compiled Guile modules in ~/.config/guix/latest.
+  1)
+
+(define (standard-module-derivation name source dependencies)
+  "Return a derivation that builds the Scheme modules in SOURCE and that
+depend on DEPENDENCIES, a list of lowerable objects.  The assumption is that
+SOURCE contains package modules to be added to '%package-module-path'."
+  (define modules
+    (scheme-modules* source))
+
+  ;; FIXME: We should load, say SOURCE/.guix-channel.scm, which would allow
+  ;; channel publishers to specify things such as the sub-directory where .scm
+  ;; files live, files to exclude from the channel, preferred substitute URLs,
+  ;; etc.
+  (mlet* %store-monad ((compiled
+                        (compiled-modules modules
+                                          #:name name
+                                          #:module-path (list source)
+                                          #:extensions dependencies)))
+
+    (gexp->derivation name
+                      (with-extensions dependencies
+                        (with-imported-modules '((guix build utils))
+                          #~(begin
+                              (use-modules (guix build utils))
+
+                              (let ((go  (string-append #$output "/lib/guile/"
+                                                        (effective-version)
+                                                        "/site-ccache"))
+                                    (scm (string-append #$output
+                                                        "/share/guile/site/"
+                                                        (effective-version))))
+                                (mkdir-p (dirname go))
+                                (symlink #$compiled go)
+                                (mkdir-p (dirname scm))
+                                (symlink #$source scm))))))))
+
+(define* (build-from-source name source
+                            #:key verbose? commit
+                            (dependencies '()))
+  "Return a derivation to build Guix from SOURCE, using the self-build script
+contained therein.  Use COMMIT as the version string."
+  ;; Running the self-build script makes it easier to update the build
+  ;; procedure: the self-build script of the Guix-to-be-installed contains the
+  ;; right dependencies, build procedure, etc., which the Guix-in-use may not
+  ;; be know.
+  (define script
+    (string-append source "/" %self-build-file))
+
+  (if (file-exists? script)
+      (let ((build (save-module-excursion
+                    (lambda ()
+                      (primitive-load script)))))
+        ;; BUILD must be a monadic procedure of at least one argument: the
+        ;; source tree.
+        ;;
+        ;; Note: BUILD can return #f if it does not support %PULL-VERSION.  In
+        ;; the future we'll fall back to a previous version of the protocol
+        ;; when that happens.
+        (build source #:verbose? verbose? #:version commit
+               #:pull-version %pull-version))
+
+      ;; Build a set of modules that extend Guix using the standard method.
+      (standard-module-derivation name source dependencies)))
+
+(define* (build-channel-instance instance #:optional (dependencies '()))
+  "Return, as a monadic value, the derivation for INSTANCE, a channel
+instance.  DEPENDENCIES is a list of extensions providing Guile modules that
+INSTANCE depends on."
+  (build-from-source (symbol->string
+                      (channel-name (channel-instance-channel instance)))
+                     (channel-instance-checkout instance)
+                     #:commit (channel-instance-commit instance)
+                     #:dependencies dependencies))
+
+(define (channel-instance-derivations instances)
+  "Return the list of derivations to build INSTANCES, in the same order as
+INSTANCES."
+  (define core-instance
+    ;; The 'guix' channel is treated specially: it's an implicit dependency of
+    ;; all the other channels.
+    (find (lambda (instance)
+            (guix-channel? (channel-instance-channel instance)))
+          instances))
+
+  (mlet %store-monad ((core (build-channel-instance core-instance)))
+    (mapm %store-monad
+          (lambda (instance)
+            (if (eq? instance core-instance)
+                (return core)
+                (build-channel-instance instance
+                                        (list core))))
+          instances)))
+
+(define latest-channel-derivations
+  (let ((latest-channel-instances (store-lift latest-channel-instances)))
+    (lambda (channels)
+      "Return, as a monadic value, the list of derivations for the latest
+instances of CHANNELS."
+      (mlet %store-monad ((instances (latest-channel-instances channels)))
+        (channel-instance-derivations instances)))))
+
+(define (whole-package-for-legacy name modules)
+  "Return a full-blown Guix package for MODULES, a derivation that builds Guix
+modules in the old ~/.config/guix/latest style."
+  (define packages
+    (resolve-interface '(gnu packages guile)))
+
+  (letrec-syntax ((list (syntax-rules (->)
+                          ((_)
+                           '())
+                          ((_ (module -> variable) rest ...)
+                           (cons (module-ref (resolve-interface
+                                              '(gnu packages module))
+                                             'variable)
+                                 (list rest ...)))
+                          ((_ variable rest ...)
+                           (cons (module-ref packages 'variable)
+                                 (list rest ...))))))
+    (whole-package name modules
+
+                   ;; In the "old style", %SELF-BUILD-FILE would simply return a
+                   ;; derivation that builds modules.  We have to infer what the
+                   ;; dependencies of these modules were.
+                   (list guile-json guile-git guile-bytestructures
+                         (ssh -> guile-ssh) (tls -> gnutls)))))
+
+(define (old-style-guix? drv)
+  "Return true if DRV corresponds to a ~/.config/guix/latest style of
+derivation."
+  ;; Here we rely on a gross historical fact: that derivations produced by the
+  ;; "old style" (before commit 8a0d9bc8a3f153159d9e239a151c0fa98f1e12d8,
+  ;; dated May 30, 2018) did not depend on "guix-command.drv".
+  (not (find (lambda (input)
+               (string-suffix? "-guix-command.drv"
+                               (derivation-input-path input)))
+             (derivation-inputs drv))))
+
+(define (channel-instances->manifest instances)
+  "Return a profile manifest with entries for all of INSTANCES, a list of
+channel instances."
+  (define instance->entry
+    (match-lambda
+      ((instance drv)
+       (let ((commit  (channel-instance-commit instance))
+             (channel (channel-instance-channel instance)))
+         (with-monad %store-monad
+           (return (manifest-entry
+                     (name (symbol->string (channel-name channel)))
+                     (version (string-take commit 7))
+                     (item (if (guix-channel? channel)
+                               (if (old-style-guix? drv)
+                                   (whole-package-for-legacy
+                                    (string-append name "-" version)
+                                    drv)
+                                   drv)
+                               drv))
+                     (properties
+                      `((source (repository
+                                 (version 0)
+                                 (url ,(channel-url channel))
+                                 (branch ,(channel-branch channel))
+                                 (commit ,commit))))))))))))
+
+  (mlet* %store-monad ((derivations (channel-instance-derivations instances))
+                       (entries     (mapm %store-monad instance->entry
+                                          (zip instances derivations))))
+    (return (manifest entries))))
diff --git a/guix/describe.scm b/guix/describe.scm
new file mode 100644
index 0000000000..3122a762fe
--- /dev/null
+++ b/guix/describe.scm
@@ -0,0 +1,73 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2018 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 describe)
+  #:use-module (guix memoization)
+  #:use-module (guix profiles)
+  #:use-module (srfi srfi-1)
+  #:use-module (ice-9 match)
+  #:export (package-path-entries))
+
+;;; Commentary:
+;;;
+;;; This module provides supporting code to allow a Guix instance to find, at
+;;; run time, which profile it's in (profiles created by 'guix pull').  That
+;;; allows it to read meta-information about itself (e.g., repository URL and
+;;; commit ID) and to find other channels available in the same profile.  It's
+;;; a bit like ELPA's pkg-info.el.
+;;;
+;;; Code:
+
+(define current-profile
+  (mlambda ()
+    "Return the profile (created by 'guix pull') the calling process lives in,
+or #f if this is not applicable."
+    (match (command-line)
+      ((program . _)
+       (and (string-suffix? "/bin/guix" program)
+            ;; Note: We want to do _lexical dot-dot resolution_.  Using ".."
+            ;; for real would instead take us into the /gnu/store directory
+            ;; that ~/.config/guix/current/bin points to, whereas we want to
+            ;; obtain ~/.config/guix/current.
+            (let ((candidate (dirname (dirname program))))
+              (and (file-exists? (string-append candidate "/manifest"))
+                   candidate)))))))
+
+(define current-profile-entries
+  (mlambda ()
+    "Return the list of entries in the 'guix pull' profile the calling process
+lives in, or #f if this is not applicable."
+    (match (current-profile)
+      (#f '())
+      (profile
+       (let ((manifest (profile-manifest profile)))
+         (manifest-entries manifest))))))
+
+(define package-path-entries
+  (mlambda ()
+    "Return a list of package path entries to be added to the package search
+path.  These entries are taken from the 'guix pull' profile the calling
+process lives in, when applicable."
+    ;; Filter out Guix itself.
+    (filter-map (lambda (entry)
+                  (and (not (string=? (manifest-entry-name entry)
+                                      "guix"))
+                       (string-append (manifest-entry-item entry)
+                                      "/share/guile/site/"
+                                      (effective-version))))
+                (current-profile-entries))))
diff --git a/guix/discovery.scm b/guix/discovery.scm
index 2b627d108e..3fc6e2c9e7 100644
--- a/guix/discovery.scm
+++ b/guix/discovery.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -27,6 +27,7 @@
   #:use-module (ice-9 ftw)
   #:export (scheme-files
             scheme-modules
+            scheme-modules*
             fold-modules
             all-modules
             fold-module-public-variables))
@@ -115,6 +116,16 @@ name and the exception key and arguments."
                                 (string-append directory "/" sub-directory)
                                 directory))))
 
+(define* (scheme-modules* directory #:optional sub-directory)
+  "Return the list of module names found under SUB-DIRECTORY in DIRECTORY.
+This is a source-only variant that does not try to load files."
+  (let ((prefix (string-length directory)))
+    (map (lambda (file)
+           (file-name->module-name (string-drop file prefix)))
+         (scheme-files (if sub-directory
+                           (string-append directory "/" sub-directory)
+                           directory)))))
+
 (define* (fold-modules proc init path #:key (warn (const #f)))
   "Fold over all the Scheme modules present in PATH, a list of directories.
 Call (PROC MODULE RESULT) for each module that is found."
diff --git a/guix/import/hackage.scm b/guix/import/hackage.scm
index 3c00f680bf..54301de2e8 100644
--- a/guix/import/hackage.scm
+++ b/guix/import/hackage.scm
@@ -44,6 +44,7 @@
             %hackage-updater
 
             guix-package->hackage-name
+            hackage-name->package-name
             hackage-fetch
             hackage-source-url
             hackage-cabal-url
diff --git a/guix/import/pypi.scm b/guix/import/pypi.scm
index 25560bac46..87b047bdac 100644
--- a/guix/import/pypi.scm
+++ b/guix/import/pypi.scm
@@ -3,6 +3,7 @@
 ;;; Copyright © 2015 Cyril Roelandt <tipecaml@gmail.com>
 ;;; Copyright © 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
+;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -24,6 +25,7 @@
   #:use-module (ice-9 match)
   #:use-module (ice-9 pretty-print)
   #:use-module (ice-9 regex)
+  #:use-module (ice-9 receive)
   #:use-module ((ice-9 rdelim) #:select (read-line))
   #:use-module (srfi srfi-1)
   #:use-module (srfi srfi-26)
@@ -36,7 +38,8 @@
   #:use-module (guix utils)
   #:use-module ((guix build utils)
                 #:select ((package-name->name+version
-                           . hyphen-package-name->name+version)))
+                           . hyphen-package-name->name+version)
+                          find-files))
   #:use-module (guix import utils)
   #:use-module ((guix download) #:prefix download:)
   #:use-module (guix import json)
@@ -45,6 +48,7 @@
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix build-system python)
   #:export (guix-package->pypi-name
+            pypi-recursive-import
             pypi->guix-package
             %pypi-updater))
 
@@ -114,9 +118,9 @@ package definition."
      `((propagated-inputs (,'quasiquote ,package-inputs))))))
 
 (define (guess-requirements source-url wheel-url tarball)
-  "Given SOURCE-URL, WHEEL-URL and a TARBALL of the package, return a list of
-the required packages specified in the requirements.txt file. TARBALL will be
-extracted in the current directory, and will be deleted."
+  "Given SOURCE-URL, WHEEL-URL and a TARBALL of the package, return a list
+of the required packages specified in the requirements.txt file.  TARBALL will
+be extracted in a temporary directory."
 
   (define (tarball-directory url)
     ;; Given the URL of the package's tarball, return the name of the directory
@@ -140,8 +144,8 @@ cannot determine package dependencies"))
     ;; file, remove everything other than the actual name of the required
     ;; package, and return it.
     (string-take s
-     (or (string-index s #\space)
-         (string-length s))))
+      (or (string-index s (lambda (chr) (member chr '(#\space #\> #\= #\<))))
+          (string-length s))))
 
   (define (comment? line)
     ;; Return #t if the given LINE is a comment, #f otherwise.
@@ -160,7 +164,7 @@ cannot determine package dependencies"))
                  ((or (string-null? line) (comment? line))
                   (loop result))
                  (else
-                  (loop (cons (python->package-name (clean-requirement line))
+                  (loop (cons (clean-requirement line)
                               result))))))))))
 
   (define (read-wheel-metadata wheel-archive)
@@ -180,9 +184,7 @@ cannot determine package dependencies"))
                                             (hash-ref (list-ref run_requires 0)
                                                        "requires")
                                             '())))
-                     (map (lambda (r)
-                            (python->package-name (clean-requirement r)))
-                          requirements)))))
+                     (map clean-requirement requirements)))))
              (lambda ()
                (delete-file json-file)
                (rmdir dirname))))))
@@ -197,31 +199,37 @@ cannot determine package dependencies"))
               (read-wheel-metadata temp))
          #f))))
 
-
   (define (guess-requirements-from-source)
     ;; Return the package's requirements by guessing them from the source.
     (let ((dirname (tarball-directory source-url)))
       (if (string? dirname)
-          (let* ((req-file (string-append dirname "/requirements.txt"))
-                 (exit-code (system* "tar" "xf" tarball req-file)))
-            ;; TODO: support more formats.
-            (if (zero? exit-code)
-                (dynamic-wind
-                  (const #t)
-                  (lambda ()
-                    (read-requirements req-file))
-                  (lambda ()
-                    (delete-file req-file)
-                    (rmdir dirname)))
-                (begin
-                  (warning (G_ "'tar xf' failed with exit code ~a\n")
-                           exit-code)
-                  '())))
+          (call-with-temporary-directory
+           (lambda (dir)
+             (let* ((pypi-name (string-take dirname (string-rindex dirname #\-)))
+                    (req-files (list (string-append dirname "/requirements.txt")
+                                     (string-append dirname "/" pypi-name ".egg-info"
+                                                    "/requires.txt")))
+                    (exit-codes (map (lambda (file-name)
+                                       (parameterize ((current-error-port (%make-void-port "rw+"))
+                                                      (current-output-port (%make-void-port "rw+")))
+                                         (system* "tar" "xf" tarball "-C" dir file-name)))
+                                     req-files)))
+               ;; Only one of these files needs to exist.
+               (if (any zero? exit-codes)
+                   (match (find-files dir)
+                     ((file . _)
+                      (read-requirements file))
+                     (()
+                      (warning (G_ "No requirements file found.\n"))))
+                   (begin
+                     (warning (G_ "Failed to extract requirements files\n"))
+                     '())))))
           '())))
 
   ;; First, try to compute the requirements using the wheel, since that is the
   ;; most reliable option. If a wheel is not provided for this package, try
-  ;; getting them by reading the "requirements.txt" file from the source. Note
+  ;; getting them by reading either the "requirements.txt" file or the
+  ;; "requires.txt" from the egg-info directory from the source tarball. Note
   ;; that "requirements.txt" is not mandatory, so this is likely to fail.
   (or (guess-requirements-from-wheel)
       (guess-requirements-from-source)))
@@ -229,16 +237,21 @@ cannot determine package dependencies"))
 
 (define (compute-inputs source-url wheel-url tarball)
   "Given the SOURCE-URL of an already downloaded TARBALL, return a list of
-name/variable pairs describing the required inputs of this package."
-  (sort
-    (map (lambda (input)
-           (list input (list 'unquote (string->symbol input))))
-         (remove (cut string=? "python-argparse" <>)
-                 (guess-requirements source-url wheel-url tarball)))
-    (lambda args
-      (match args
-        (((a _ ...) (b _ ...))
-         (string-ci<? a b))))))
+name/variable pairs describing the required inputs of this package.  Also
+return the unaltered list of upstream dependency names."
+  (let ((dependencies
+         (remove (cut string=? "argparse" <>)
+                 (guess-requirements source-url wheel-url tarball))))
+    (values (sort
+             (map (lambda (input)
+                    (let ((guix-name (python->package-name input)))
+                      (list guix-name (list 'unquote (string->symbol guix-name)))))
+                  dependencies)
+             (lambda args
+               (match args
+                 (((a _ ...) (b _ ...))
+                  (string-ci<? a b)))))
+            dependencies)))
 
 (define (make-pypi-sexp name version source-url wheel-url home-page synopsis
                         description license)
@@ -247,46 +260,58 @@ VERSION, SOURCE-URL, HOME-PAGE, SYNOPSIS, DESCRIPTION, and LICENSE."
   (call-with-temporary-output-file
    (lambda (temp port)
      (and (url-fetch source-url temp)
-          `(package
-             (name ,(python->package-name name))
-             (version ,version)
-             (source (origin
-                       (method url-fetch)
+          (receive (input-package-names upstream-dependency-names)
+              (compute-inputs source-url wheel-url temp)
+            (values
+             `(package
+                (name ,(python->package-name name))
+                (version ,version)
+                (source (origin
+                          (method url-fetch)
 
-                       ;; Sometimes 'pypi-uri' doesn't quite work due to mixed
-                       ;; cases in NAME, for instance, as is the case with
-                       ;; "uwsgi".  In that case, fall back to a full URL.
-                       (uri (pypi-uri ,(string-downcase name) version))
-                       (sha256
-                        (base32
-                         ,(guix-hash-url temp)))))
-             (build-system python-build-system)
-             ,@(maybe-inputs (compute-inputs source-url wheel-url temp))
-             (home-page ,home-page)
-             (synopsis ,synopsis)
-             (description ,description)
-             (license ,(license->symbol license)))))))
+                          ;; Sometimes 'pypi-uri' doesn't quite work due to mixed
+                          ;; cases in NAME, for instance, as is the case with
+                          ;; "uwsgi".  In that case, fall back to a full URL.
+                          (uri (pypi-uri ,(string-downcase name) version))
+                          (sha256
+                           (base32
+                            ,(guix-hash-url temp)))))
+                (build-system python-build-system)
+                ,@(maybe-inputs input-package-names)
+                (home-page ,home-page)
+                (synopsis ,synopsis)
+                (description ,description)
+                (license ,(license->symbol license)))
+             upstream-dependency-names))))))
 
-(define (pypi->guix-package package-name)
-  "Fetch the metadata for PACKAGE-NAME from pypi.org, and return the
+(define pypi->guix-package
+  (memoize
+   (lambda* (package-name)
+     "Fetch the metadata for PACKAGE-NAME from pypi.org, and return the
 `package' s-expression corresponding to that package, or #f on failure."
-  (let ((package (pypi-fetch package-name)))
-    (and package
-         (guard (c ((missing-source-error? c)
-                    (let ((package (missing-source-error-package c)))
-                      (leave (G_ "no source release for pypi package ~a ~a~%")
-                             (assoc-ref* package "info" "name")
-                             (assoc-ref* package "info" "version")))))
-           (let ((name (assoc-ref* package "info" "name"))
-                 (version (assoc-ref* package "info" "version"))
-                 (release (assoc-ref (latest-source-release package) "url"))
-                 (wheel (assoc-ref (latest-wheel-release package) "url"))
-                 (synopsis (assoc-ref* package "info" "summary"))
-                 (description (assoc-ref* package "info" "summary"))
-                 (home-page (assoc-ref* package "info" "home_page"))
-                 (license (string->license (assoc-ref* package "info" "license"))))
-             (make-pypi-sexp name version release wheel home-page synopsis
-                             description license))))))
+     (let ((package (pypi-fetch package-name)))
+       (and package
+            (guard (c ((missing-source-error? c)
+                       (let ((package (missing-source-error-package c)))
+                         (leave (G_ "no source release for pypi package ~a ~a~%")
+                                (assoc-ref* package "info" "name")
+                                (assoc-ref* package "info" "version")))))
+              (let ((name (assoc-ref* package "info" "name"))
+                    (version (assoc-ref* package "info" "version"))
+                    (release (assoc-ref (latest-source-release package) "url"))
+                    (wheel (assoc-ref (latest-wheel-release package) "url"))
+                    (synopsis (assoc-ref* package "info" "summary"))
+                    (description (assoc-ref* package "info" "summary"))
+                    (home-page (assoc-ref* package "info" "home_page"))
+                    (license (string->license (assoc-ref* package "info" "license"))))
+                (make-pypi-sexp name version release wheel home-page synopsis
+                                description license))))))))
+
+(define (pypi-recursive-import package-name)
+  (recursive-import package-name #f
+                    #:repo->guix-package (lambda (name repo)
+                                           (pypi->guix-package name))
+                    #:guix-name python->package-name))
 
 (define (string->license str)
   "Convert the string STR into a license object."
diff --git a/guix/import/stackage.scm b/guix/import/stackage.scm
index ec93fbced6..afd5d997ae 100644
--- a/guix/import/stackage.scm
+++ b/guix/import/stackage.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2017 Federico Beffa <beffa@fbengineering.ch>
+;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -25,10 +26,12 @@
   #:use-module (srfi srfi-35)
   #:use-module (guix import json)
   #:use-module (guix import hackage)
+  #:use-module (guix import utils)
   #:use-module (guix memoization)
   #:use-module (guix packages)
   #:use-module (guix upstream)
   #:export (stackage->guix-package
+            stackage-recursive-import
             %stackage-updater))
 
 
@@ -45,9 +48,9 @@
     (_ #f)))
 
 (define (lts-info-packages lts-info)
-  "Retruns the alist of packages contained in LTS-INFO."
+  "Returns the alist of packages contained in LTS-INFO."
   (match lts-info
-    ((_ ("packages" pkg ...)) pkg)
+    ((("packages" pkg ...) . _) pkg)
     (_ '())))
 
 (define (leave-with-message fmt . args)
@@ -85,25 +88,33 @@
 (define (hackage-name-version name version)
   (and version (string-append  name "@" version)))
 
-(define* (stackage->guix-package package-name ; upstream name
-                                 #:key
-                                 (include-test-dependencies? #t)
-                                 (lts-version "")
-                                 (packages-info
-                                  (lts-info-packages
-                                   (stackage-lts-info-fetch lts-version))))
-  "Fetch Cabal file for PACKAGE-NAME from hackage.haskell.org.  The retrieved
+(define stackage->guix-package
+  (memoize
+   (lambda* (package-name ; upstream name
+             #:key
+             (include-test-dependencies? #t)
+             (lts-version "")
+             (packages-info
+              (lts-info-packages
+               (stackage-lts-info-fetch lts-version))))
+     "Fetch Cabal file for PACKAGE-NAME from hackage.haskell.org.  The retrieved
 vesion corresponds to the version of PACKAGE-NAME specified in the LTS-VERSION
 release at stackage.org.  Return the `package' S-expression corresponding to
 that package, or #f on failure.  PACKAGES-INFO is the alist with the packages
 included in the Stackage LTS release."
-  (let* ((version (lts-package-version packages-info package-name))
-         (name-version (hackage-name-version package-name version)))
-    (if name-version
-        (hackage->guix-package name-version
-                               #:include-test-dependencies?
-                               include-test-dependencies?)
-        (leave-with-message "~a: Stackage package not found" package-name))))
+     (let* ((version (lts-package-version packages-info package-name))
+            (name-version (hackage-name-version package-name version)))
+       (if name-version
+           (hackage->guix-package name-version
+                                  #:include-test-dependencies?
+                                  include-test-dependencies?)
+           (leave-with-message "~a: Stackage package not found" package-name))))))
+
+(define (stackage-recursive-import package-name . args)
+  (recursive-import package-name #f
+                    #:repo->guix-package (lambda (name repo)
+                                           (apply stackage->guix-package (cons name args)))
+                    #:guix-name hackage-name->package-name))
 
 
 ;;;
diff --git a/guix/records.scm b/guix/records.scm
index da3ecdaaf8..98f3c8fef0 100644
--- a/guix/records.scm
+++ b/guix/records.scm
@@ -52,17 +52,6 @@
       ((weird _ ...)                              ;weird!
        (syntax-violation name "invalid field specifier" #'weird)))))
 
-(define (print-record-abi-mismatch-error port key args
-                                         default-printer)
-  (match args
-    ((rtd . _)
-     ;; The source file where this exception is thrown must be recompiled.
-     (format port "ERROR: ~a: record ABI mismatch; recompilation needed"
-             rtd))))
-
-(set-exception-printer! 'record-abi-mismatch-error
-                        print-record-abi-mismatch-error)
-
 (eval-when (expand load eval)
   ;; The procedures below are needed both at run time and at expansion time.
 
@@ -81,7 +70,11 @@
 interface\" (ABI) for TYPE is equal to COOKIE."
     (with-syntax ((current-abi (current-abi-identifier type)))
       #`(unless (eq? current-abi #,cookie)
-          (throw 'record-abi-mismatch-error #,type)))))
+          ;; The source file where this exception is thrown must be
+          ;; recompiled.
+          (throw 'record-abi-mismatch-error 'abi-check
+                 "~a: record ABI mismatch; recompilation needed"
+                 (list #,type) '())))))
 
 (define-syntax make-syntactic-constructor
   (syntax-rules ()
diff --git a/guix/scripts/import/pypi.scm b/guix/scripts/import/pypi.scm
index 59a925a3ca..7bd83818ba 100644
--- a/guix/scripts/import/pypi.scm
+++ b/guix/scripts/import/pypi.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2014 David Thompson <davet@gnu.org>
+;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -25,6 +26,7 @@
   #:use-module (srfi srfi-1)
   #:use-module (srfi srfi-11)
   #:use-module (srfi srfi-37)
+  #:use-module (srfi srfi-41)
   #:use-module (ice-9 match)
   #:use-module (ice-9 format)
   #:export (guix-import-pypi))
@@ -43,6 +45,8 @@ Import and convert the PyPI package for PACKAGE-NAME.\n"))
   (display (G_ "
   -h, --help             display this help and exit"))
   (display (G_ "
+  -r, --recursive        import packages recursively"))
+  (display (G_ "
   -V, --version          display version information and exit"))
   (newline)
   (show-bug-report-information))
@@ -56,6 +60,9 @@ Import and convert the PyPI package for PACKAGE-NAME.\n"))
          (option '(#\V "version") #f #f
                  (lambda args
                    (show-version-and-exit "guix import pypi")))
+         (option '(#\r "recursive") #f #f
+                 (lambda (opt name arg result)
+                   (alist-cons 'recursive #t result)))
          %standard-import-options))
 
 
@@ -81,11 +88,22 @@ Import and convert the PyPI package for PACKAGE-NAME.\n"))
                            (reverse opts))))
     (match args
       ((package-name)
-       (let ((sexp (pypi->guix-package package-name)))
-         (unless sexp
-           (leave (G_ "failed to download meta-data for package '~a'~%")
-                  package-name))
-         sexp))
+       (if (assoc-ref opts 'recursive)
+           ;; Recursive import
+           (map (match-lambda
+                  ((and ('package ('name name) . rest) pkg)
+                   `(define-public ,(string->symbol name)
+                      ,pkg))
+                  (_ #f))
+                (reverse
+                 (stream->list
+                  (pypi-recursive-import package-name))))
+           ;; Single import
+           (let ((sexp (pypi->guix-package package-name)))
+             (unless sexp
+               (leave (G_ "failed to download meta-data for package '~a'~%")
+                      package-name))
+             sexp)))
       (()
        (leave (G_ "too few arguments~%")))
       ((many ...)
diff --git a/guix/scripts/import/stackage.scm b/guix/scripts/import/stackage.scm
index e6676e93e8..b4b12581bf 100644
--- a/guix/scripts/import/stackage.scm
+++ b/guix/scripts/import/stackage.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2017 Federico Beffa <beffa@fbengineering.ch>
+;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -26,6 +27,7 @@
   #:use-module (srfi srfi-1)
   #:use-module (srfi srfi-11)
   #:use-module (srfi srfi-37)
+  #:use-module (srfi srfi-41)
   #:use-module (ice-9 match)
   #:use-module (ice-9 format)
   #:export (guix-import-stackage))
@@ -43,11 +45,13 @@
   (display (G_ "Usage: guix import stackage PACKAGE-NAME
 Import and convert the LTS Stackage package for PACKAGE-NAME.\n"))
   (display (G_ "
-  -r VERSION, --lts-version=VERSION
+  -l VERSION, --lts-version=VERSION
                                specify the LTS version to use"))
   (display (G_ "
   -h, --help                   display this help and exit"))
   (display (G_ "
+  -r, --recursive              import packages recursively"))
+  (display (G_ "
   -t, --no-test-dependencies   don't include test-only dependencies"))
   (display (G_ "
   -V, --version                display version information and exit"))
@@ -68,11 +72,14 @@ Import and convert the LTS Stackage package for PACKAGE-NAME.\n"))
                    (alist-cons 'include-test-dependencies? #f
                                (alist-delete 'include-test-dependencies?
                                              result))))
-         (option '(#\r "lts-version") #t #f
+         (option '(#\l "lts-version") #t #f
                  (lambda (opt name arg result)
                    (alist-cons 'lts-version arg
                                (alist-delete 'lts-version
                                              result))))
+         (option '(#\r "recursive") #f #f
+                 (lambda (opt name arg result)
+                   (alist-cons 'recursive #t result)))
          %standard-import-options))
 
 
@@ -90,6 +97,27 @@ Import and convert the LTS Stackage package for PACKAGE-NAME.\n"))
                   (alist-cons 'argument arg result))
                 %default-options))
 
+  (define (run-importer package-name opts error-fn)
+    (let* ((arguments (list
+                       package-name
+                       #:include-test-dependencies?
+                       (assoc-ref opts 'include-test-dependencies?)
+                       #:lts-version (assoc-ref opts 'lts-version)))
+           (sexp (if (assoc-ref opts 'recursive)
+                     ;; Recursive import
+                     (map (match-lambda
+                            ((and ('package ('name name) . rest) pkg)
+                             `(define-public ,(string->symbol name)
+                                ,pkg))
+                            (_ #f))
+                          (reverse
+                           (stream->list
+                            (apply stackage-recursive-import arguments))))
+                     ;; Single import
+                     (apply stackage->guix-package arguments))))
+      (unless sexp (error-fn))
+      sexp))
+
   (let* ((opts (parse-options))
          (args (filter-map (match-lambda
                             (('argument . value)
@@ -99,15 +127,11 @@ Import and convert the LTS Stackage package for PACKAGE-NAME.\n"))
     (match args
       ((package-name)
        (with-error-handling
-        (let ((sexp (stackage->guix-package
-                     package-name
-                     #:include-test-dependencies?
-                     (assoc-ref opts 'include-test-dependencies?)
-                     #:lts-version (assoc-ref opts 'lts-version))))
-          (unless sexp
-            (leave (G_ "failed to download cabal file for package '~a'~%")
-                   package-name))
-          sexp)))
+         (run-importer package-name opts
+                       (lambda ()
+                         (leave (G_ "failed to download cabal file \
+for package '~a'~%")
+                                package-name)))))
       (()
        (leave (G_ "too few arguments~%")))
       ((many ...)
diff --git a/guix/scripts/pack.scm b/guix/scripts/pack.scm
index 729850839b..fb0677de28 100644
--- a/guix/scripts/pack.scm
+++ b/guix/scripts/pack.scm
@@ -748,8 +748,8 @@ Create a bundle of PACKAGE.\n"))
                (build-image (match (assq-ref %formats pack-format)
                               ((? procedure? proc) proc)
                               (#f
-                               (leave (G_ "~a: unknown pack format")
-                                      format))))
+                               (leave (G_ "~a: unknown pack format~%")
+                                      pack-format))))
                (localstatedir? (assoc-ref opts 'localstatedir?)))
           (run-with-store store
             (mlet* %store-monad ((profile (profile-derivation
diff --git a/guix/scripts/pull.scm b/guix/scripts/pull.scm
index ee68c21a4c..18c04f05dd 100644
--- a/guix/scripts/pull.scm
+++ b/guix/scripts/pull.scm
@@ -30,26 +30,19 @@
   #:use-module (guix grafts)
   #:use-module (guix memoization)
   #:use-module (guix monads)
+  #:use-module (guix channels)
   #:autoload   (guix inferior) (open-inferior)
   #:use-module (guix scripts build)
-  #:autoload   (guix self) (whole-package)
   #:use-module (guix git)
   #:use-module (git)
   #:use-module (gnu packages)
-  #:autoload   (gnu packages ssh) (guile-ssh)
-  #:autoload   (gnu packages tls) (gnutls)
   #:use-module ((guix scripts package) #:select (build-and-use-profile))
-  #:use-module ((guix build utils)
-                #:select (with-directory-excursion delete-file-recursively))
-  #:use-module ((guix build download)
-                #:select (%x509-certificate-directory))
   #:use-module (gnu packages base)
   #:use-module (gnu packages guile)
   #:use-module ((gnu packages bootstrap)
                 #:select (%bootstrap-guile))
   #:use-module ((gnu packages certs) #:select (le-certs))
   #:use-module (srfi srfi-1)
-  #:use-module (srfi srfi-11)
   #:use-module (srfi srfi-26)
   #:use-module (srfi srfi-35)
   #:use-module (srfi srfi-37)
@@ -57,9 +50,6 @@
   #:use-module (ice-9 vlist)
   #:export (guix-pull))
 
-(define %repository-url
-  (or (getenv "GUIX_PULL_URL") "https://git.savannah.gnu.org/git/guix.git"))
-
 
 ;;;
 ;;; Command-line options.
@@ -67,9 +57,7 @@
 
 (define %default-options
   ;; Alist of default option values.
-  `((repository-url . ,%repository-url)
-    (ref . (branch . "origin/master"))
-    (system . ,(%current-system))
+  `((system . ,(%current-system))
     (substitutes? . #t)
     (build-hook? . #t)
     (graft? . #t)
@@ -81,6 +69,8 @@ Download and deploy the latest version of Guix.\n"))
   (display (G_ "
       --verbose          produce verbose output"))
   (display (G_ "
+  -C, --channels=FILE    deploy the channels defined in FILE"))
+  (display (G_ "
       --url=URL          download from the Git repository at URL"))
   (display (G_ "
       --commit=COMMIT    download the specified COMMIT"))
@@ -105,6 +95,9 @@ Download and deploy the latest version of Guix.\n"))
   (cons* (option '("verbose") #f #f
                  (lambda (opt name arg result)
                    (alist-cons 'verbose? #t result)))
+         (option '(#\C "channels") #t #f
+                 (lambda (opt name arg result)
+                   (alist-cons 'channel-file arg result)))
          (option '(#\l "list-generations") #f #t
                  (lambda (opt name arg result)
                    (cons `(query list-generations ,(or arg ""))
@@ -142,70 +135,6 @@ Download and deploy the latest version of Guix.\n"))
 (define indirect-root-added
   (store-lift add-indirect-root))
 
-(define %self-build-file
-  ;; The file containing code to build Guix.  This serves the same purpose as
-  ;; a makefile, and, similarly, is intended to always keep this name.
-  "build-aux/build-self.scm")
-
-(define %pull-version
-  ;; This is the version of the 'guix pull' protocol.  It specifies what's
-  ;; expected from %SELF-BUILD-FILE.  The initial version ("0") was when we'd
-  ;; place a set of compiled Guile modules in ~/.config/guix/latest.
-  1)
-
-(define* (build-from-source source
-                            #:key verbose? commit)
-  "Return a derivation to build Guix from SOURCE, using the self-build script
-contained therein.  Use COMMIT as the version string."
-  ;; Running the self-build script makes it easier to update the build
-  ;; procedure: the self-build script of the Guix-to-be-installed contains the
-  ;; right dependencies, build procedure, etc., which the Guix-in-use may not
-  ;; be know.
-  (let* ((script (string-append source "/" %self-build-file))
-         (build  (primitive-load script)))
-    ;; BUILD must be a monadic procedure of at least one argument: the source
-    ;; tree.
-    ;;
-    ;; Note: BUILD can return #f if it does not support %PULL-VERSION.  In the
-    ;; future we'll fall back to a previous version of the protocol when that
-    ;; happens.
-    (build source #:verbose? verbose? #:version commit
-           #:pull-version %pull-version)))
-
-(define (whole-package-for-legacy name modules)
-  "Return a full-blown Guix package for MODULES, a derivation that builds Guix
-modules in the old ~/.config/guix/latest style."
-  (whole-package name modules
-
-                 ;; In the "old style", %SELF-BUILD-FILE would simply return a
-                 ;; derivation that builds modules.  We have to infer what the
-                 ;; dependencies of these modules were.
-                 (list guile-json guile-git guile-bytestructures
-                       guile-ssh gnutls)))
-
-(define* (derivation->manifest-entry drv
-                                     #:key url branch commit)
-  "Return a manifest entry for DRV, which represents Guix at COMMIT.  Record
-URL, BRANCH, and COMMIT as a property in the manifest entry."
-  (mbegin %store-monad
-    (what-to-build (list drv))
-    (built-derivations (list drv))
-    (let ((out (derivation->output-path drv)))
-      (return (manifest-entry
-                (name "guix")
-                (version (string-take commit 7))
-                (item (if (file-exists? (string-append out "/bin/guix"))
-                          drv
-                          (whole-package-for-legacy (string-append name "-"
-                                                                   version)
-                                                    drv)))
-                (properties
-                 `((source (repository
-                            (version 0)
-                            (url ,url)
-                            (branch ,branch)
-                            (commit ,commit))))))))))
-
 (define (display-profile-news profile)
   "Display what's up in PROFILE--new packages, and all that."
   (match (memv (generation-number profile)
@@ -223,8 +152,8 @@ URL, BRANCH, and COMMIT as a property in the manifest entry."
                                       #:heading (G_ "New in this revision:\n"))))
     (_ #t)))
 
-(define* (build-and-install source config-dir
-                            #:key verbose? url branch commit)
+(define* (build-and-install instances config-dir
+                            #:key verbose?)
   "Build the tool from SOURCE, and install it in CONFIG-DIR."
   (define update-profile
     (store-lift build-and-use-profile))
@@ -232,15 +161,9 @@ URL, BRANCH, and COMMIT as a property in the manifest entry."
   (define profile
     (string-append config-dir "/current"))
 
-  (mlet* %store-monad ((drv   (build-from-source source
-                                                 #:commit commit
-                                                 #:verbose? verbose?))
-                       (entry (derivation->manifest-entry drv
-                                                          #:url url
-                                                          #:branch branch
-                                                          #:commit commit)))
+  (mlet %store-monad ((manifest (channel-instances->manifest instances)))
     (mbegin %store-monad
-      (update-profile profile (manifest (list entry)))
+      (update-profile profile manifest)
       (return (display-profile-news profile)))))
 
 (define (honor-lets-encrypt-certificates! store)
@@ -426,45 +349,106 @@ and ALIST2 differ, display HEADING upfront."
                ((numbers ...)
                 (list-generations profile numbers)))))))))
 
+(define (channel-list opts)
+  "Return the list of channels to use.  If OPTS specify a channel file,
+channels are read from there; otherwise, if ~/.config/guix/channels.scm
+exists, read it; otherwise %DEFAULT-CHANNELS is used.  Apply channel
+transformations specified in OPTS (resulting from '--url', '--commit', or
+'--branch'), if any."
+  (define file
+    (assoc-ref opts 'channel-file))
+
+  (define default-file
+    (string-append (config-directory) "/channels.scm"))
+
+  (define (load-channels file)
+    (let ((result (load* file (make-user-module '((guix channels))))))
+      (if (and (list? result) (every channel? result))
+          result
+          (leave (G_ "'~a' did not return a list of channels~%") file))))
+
+  (define channels
+    (cond (file
+           (load-channels file))
+          ((file-exists? default-file)
+           (load-channels default-file))
+          (else
+           %default-channels)))
+
+  (define (environment-variable)
+    (match (getenv "GUIX_PULL_URL")
+      (#f #f)
+      (url
+       (warning (G_ "The 'GUIX_PULL_URL' environment variable is deprecated.
+Use '~/.config/guix/channels.scm' instead."))
+       url)))
+
+  (let ((ref (assoc-ref opts 'ref))
+        (url (or (assoc-ref opts 'repository-url)
+                 (environment-variable))))
+    (if (or ref url)
+        (match channels
+          ((one)
+           ;; When there's only one channel, apply '--url', '--commit', and
+           ;; '--branch' to this specific channel.
+           (let ((url (or url (channel-url one))))
+             (list (match ref
+                     (('commit . commit)
+                      (channel (inherit one)
+                               (url url) (commit commit) (branch #f)))
+                     (('branch . branch)
+                      (channel (inherit one)
+                               (url url) (commit #f) (branch branch)))
+                     (#f
+                      (channel (inherit one) (url url)))))))
+          (_
+           ;; Otherwise bail out.
+           (leave
+            (G_ "'--url', '--commit', and '--branch' are not applicable~%"))))
+        channels)))
+
 
 (define (guix-pull . args)
-  (define (use-le-certs? url)
-    (string-prefix? "https://git.savannah.gnu.org/" url))
-
   (with-error-handling
     (with-git-error-handling
-     (let* ((opts  (parse-command-line args %options
-                                       (list %default-options)))
-            (url   (assoc-ref opts 'repository-url))
-            (ref   (assoc-ref opts 'ref))
-            (cache (string-append (cache-directory) "/pull")))
+     (let* ((opts     (parse-command-line args %options
+                                          (list %default-options)))
+            (cache    (string-append (cache-directory) "/pull"))
+            (channels (channel-list opts)))
+
        (cond ((assoc-ref opts 'query)
               (process-query opts))
              ((assoc-ref opts 'dry-run?)
               #t)                                 ;XXX: not very useful
              (else
               (with-store store
-                (parameterize ((%graft? (assoc-ref opts 'graft?)))
+                (parameterize ((%graft? (assoc-ref opts 'graft?))
+                               (%repository-cache-directory cache))
                   (set-build-options-from-command-line store opts)
 
-                  ;; For reproducibility, always refer to the LE certificates
-                  ;; when we know we're talking to Savannah.
-                  (when (use-le-certs? url)
-                    (honor-lets-encrypt-certificates! store))
-
-                  (format (current-error-port)
-                          (G_ "Updating from Git repository at '~a'...~%")
-                          url)
-
-                  (let-values (((checkout commit)
-                                (latest-repository-commit store url
-                                                          #:ref ref
-                                                          #:cache-directory
-                                                          cache)))
+                  ;; When certificates are already installed, use them.
+                  ;; Otherwise, use the Let's Encrypt certificates, which we
+                  ;; know Savannah uses.
+                  (let ((certs (or (getenv "SSL_CERT_DIR") "/etc/ssl/certs")))
+                    (unless (file-exists? certs)
+                      (honor-lets-encrypt-certificates! store)))
 
+                  (let ((instances (latest-channel-instances store channels)))
                     (format (current-error-port)
-                            (G_ "Building from Git commit ~a...~%")
-                            commit)
+                            (N_ "Building from this channel:~%"
+                                "Building from these channels:~%"
+                                (length instances)))
+                    (for-each (lambda (instance)
+                                (let ((channel
+                                       (channel-instance-channel instance)))
+                                  (format (current-error-port)
+                                          "  ~10a~a\t~a~%"
+                                          (channel-name channel)
+                                          (channel-url channel)
+                                          (string-take
+                                           (channel-instance-commit instance)
+                                           7))))
+                              instances)
                     (parameterize ((%guile-for-build
                                     (package-derivation
                                      store
@@ -472,13 +456,7 @@ and ALIST2 differ, display HEADING upfront."
                                          %bootstrap-guile
                                          (canonical-package guile-2.2)))))
                       (run-with-store store
-                        (build-and-install checkout (config-directory)
-                                           #:url url
-                                           #:branch (match ref
-                                                      (('branch . branch)
-                                                       branch)
-                                                      (_ #f))
-                                           #:commit commit
+                        (build-and-install instances (config-directory)
                                            #:verbose?
                                            (assoc-ref opts 'verbose?)))))))))))))
 
diff --git a/guix/self.scm b/guix/self.scm
index 5b088c413b..c5da6130bb 100644
--- a/guix/self.scm
+++ b/guix/self.scm
@@ -206,13 +206,6 @@ list of file-name/file-like objects suitable as inputs to 'imported-files'."
                (local-file file #:recursive? #t)))
        (find-files (string-append directory "/" sub-directory) pred)))
 
-(define (scheme-modules* directory sub-directory)
-  "Return the list of module names found under SUB-DIRECTORY in DIRECTORY."
-  (let ((prefix (string-length directory)))
-    (map (lambda (file)
-           (file-name->module-name (string-drop file prefix)))
-         (scheme-files (string-append directory "/" sub-directory)))))
-
 (define* (sub-directory item sub-directory)
   "Return SUB-DIRECTORY within ITEM, which may be a file name or a file-like
 object."
diff --git a/po/guix/POTFILES.in b/po/guix/POTFILES.in
index d11f408d42..7f881355e7 100644
--- a/po/guix/POTFILES.in
+++ b/po/guix/POTFILES.in
@@ -38,4 +38,5 @@ guix/upstream.scm
 guix/ui.scm
 guix/http-client.scm
 guix/nar.scm
+guix/channels.scm
 nix/nix-daemon/guix-daemon.cc
diff --git a/tests/records.scm b/tests/records.scm
index 80e08a9a5f..09ada70c2d 100644
--- a/tests/records.scm
+++ b/tests/records.scm
@@ -313,8 +313,9 @@
       (lambda ()
         (eval '(foo? (make-me-a-record)) module)
         #f)
-      (lambda (key rtd . _)
-        (eq? rtd (eval '<foo> module))))))
+      (match-lambda*
+        ((key 'abi-check (? string? message) (rtd) . _)
+         (eq? rtd (eval '<foo> module)))))))
 
 (test-equal "recutils->alist"
   '((("Name" . "foo")