Merge branch 'master' into core-updates

30 files changed, 2620 insertions, 130 deletions

diff --git a/gnu/build/linux-boot.scm b/gnu/build/linux-boot.scm
index 3081a93a97..30d6570b04 100644
--- a/gnu/build/linux-boot.scm
+++ b/gnu/build/linux-boot.scm
@@ -48,7 +48,7 @@
 ;;; Code:
 
 (define* (mount-essential-file-systems #:key (root "/"))
-  "Mount /proc and /sys under ROOT."
+  "Mount /dev, /proc, and /sys under ROOT."
   (define (scope dir)
     (string-append root
                    (if (string-suffix? "/" root)
@@ -60,6 +60,10 @@
     (mkdir (scope "proc")))
   (mount "none" (scope "proc") "proc")
 
+  (unless (file-exists? (scope "dev"))
+    (mkdir (scope "dev")))
+  (mount "none" (scope "dev") "devtmpfs")
+
   (unless (file-exists? (scope "sys"))
     (mkdir (scope "sys")))
   (mount "none" (scope "sys") "sysfs"))
@@ -71,7 +75,7 @@
                 (unless (file-exists? target)
                   (mkdir target))
                 (mount dir target "" MS_MOVE)))
-            '("/proc" "/sys")))
+            '("/dev" "/proc" "/sys")))
 
 (define (linux-command-line)
   "Return the Linux kernel command line as a list of strings."
@@ -100,7 +104,7 @@ with the given MAJOR number, starting with MINOR."
 
 (define* (make-essential-device-nodes #:key (root "/"))
   "Make essential device nodes under ROOT/dev."
-  ;; The hand-made udev!
+  ;; The hand-made devtmpfs/udev!
 
   (define (scope dir)
     (string-append root
@@ -255,7 +259,8 @@ UNIONFS."
         (mount "none" "/rw-root" "tmpfs")
 
         ;; We want read-write /dev nodes.
-        (make-essential-device-nodes #:root "/rw-root")
+        (mkdir-p "/rw-root/dev")
+        (mount "none" "/rw-root/dev" "devtmpfs")
 
         ;; Make /root a union of the tmpfs and the actual root.  Use
         ;; 'max_files' to set a high RLIMIT_NOFILE for the unionfs process
@@ -385,9 +390,6 @@ to it are lost."
          (unless (configure-qemu-networking)
            (display "network interface is DOWN\n")))
 
-       ;; Make /dev nodes.
-       (make-essential-device-nodes)
-
        ;; Prepare the real root file system under /root.
        (unless (file-exists? "/root")
          (mkdir "/root"))
@@ -405,10 +407,6 @@ to it are lost."
                                    #:volatile-root? volatile-root?)
            (mount "none" "/root" "tmpfs"))
 
-       (unless (file-exists? "/root/dev")
-         (mkdir "/root/dev")
-         (make-essential-device-nodes #:root "/root"))
-
        ;; Mount the specified file systems.
        (for-each mount-file-system
                  (remove root-mount-point? mounts))
diff --git a/gnu/packages/abiword.scm b/gnu/packages/abiword.scm
index a76b16c5af..c6f259a2dd 100644
--- a/gnu/packages/abiword.scm
+++ b/gnu/packages/abiword.scm
@@ -99,8 +99,15 @@
         ("pkg-config" ,pkg-config)))
     (home-page "http://abisource.org/")
     (synopsis "Word processing program")
-    (description
-      "AbiWord is a word processing program.  It is rapidly becoming a state
-of the art word processor, with lots of features useful for your daily work,
-personal needs, or for just some good old typing fun.")
+
+    ;; HACKERS: The comment below is here so that it shows up early in the
+    ;; .pot file.
+
+    ;; TRANSLATORS: Dear translator, We would like to inform you that package
+    ;; descriptions may occasionally include Texinfo markup.  Texinfo markup
+    ;; looks like "@code{rm -rf}", "@emph{important}", etc.  When translating,
+    ;; please leave markup as is.
+    (description "AbiWord is a word processing program.  It is rapidly
+becoming a state of the art word processor, with lots of features useful for
+your daily work, personal needs, or for just some good old typing fun.")
     (license license:gpl2+)))
diff --git a/gnu/packages/audio.scm b/gnu/packages/audio.scm
index 65859f6bed..cbf06250d0 100644
--- a/gnu/packages/audio.scm
+++ b/gnu/packages/audio.scm
@@ -1052,7 +1052,25 @@ lv2-c++-tools.")
                 "0mmhdqiyb3c9dzvxspm8h2v8jibhi8pfjxnf6m0wn744y1ia2a8f"))))
     (build-system cmake-build-system)
     (arguments
-     `(#:tests? #f)) ; no check target
+     `(#:tests? #f  ; no check target
+       #:phases
+       (modify-phases %standard-phases
+         (add-after
+          'unpack 'use-full-library-paths
+          (lambda* (#:key inputs #:allow-other-keys)
+            (substitute* "Alc/backends/pulseaudio.c"
+              (("#define PALIB \"libpulse\\.so\\.0\"")
+               (string-append "#define PALIB \""
+                              (assoc-ref inputs "pulseaudio")
+                              "/lib/libpulse.so.0"
+                              "\"")))
+            (substitute* "Alc/backends/alsa.c"
+              (("LoadLib\\(\"libasound\\.so\\.2\"\\)")
+               (string-append "LoadLib(\""
+                              (assoc-ref inputs "alsa-lib")
+                              "/lib/libasound.so.2"
+                              "\")")))
+            #t)))))
     (inputs
      `(("alsa-lib" ,alsa-lib)
        ("pulseaudio" ,pulseaudio)))
diff --git a/gnu/packages/autogen.scm b/gnu/packages/autogen.scm
index 45b7cb81cc..615839f463 100644
--- a/gnu/packages/autogen.scm
+++ b/gnu/packages/autogen.scm
@@ -30,16 +30,16 @@
 (define-public autogen
   (package
     (name "autogen")
-    (version "5.18.5")
+    (version "5.18.6")
     (source
      (origin
       (method url-fetch)
       (uri (string-append "mirror://gnu/autogen/rel"
                           version "/autogen-"
-                          version ".tar.gz"))
+                          version ".tar.xz"))
       (sha256
        (base32
-        "1flnbnmkbqmbfgammkl8m36wrlk6rhpgnf9pdm6gdfhqalxvggbv"))))
+        "0sfmmy19k9z0j3f738fyk6ljf6b66410cvd5zzyplxi2683j10qs"))))
     (build-system gnu-build-system)
     (native-inputs `(("perl" ,perl)     ;for doc generator mdoc
                      ("pkg-config" ,pkg-config)))
diff --git a/gnu/packages/base.scm b/gnu/packages/base.scm
index f60a6cfeef..69db178e05 100644
--- a/gnu/packages/base.scm
+++ b/gnu/packages/base.scm
@@ -52,22 +52,23 @@
 
 (define-public hello
   (package
-   (name "hello")
-   (version "2.10")
-   (source (origin
-            (method url-fetch)
-            (uri (string-append "mirror://gnu/hello/hello-" version
-                                ".tar.gz"))
-            (sha256
-             (base32 "0ssi1wpaf7plaswqqjwigppsg5fyh99vdlb9kzl7c9lng89ndq1i"))))
-   (build-system gnu-build-system)
-   (synopsis "Hello, GNU world: An example GNU package")
-   (description
-    "GNU Hello prints the message \"Hello, world!\" and then exits.  It
+    (name "hello")
+    (version "2.10")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://gnu/hello/hello-" version
+                                  ".tar.gz"))
+              (sha256
+               (base32
+                "0ssi1wpaf7plaswqqjwigppsg5fyh99vdlb9kzl7c9lng89ndq1i"))))
+    (build-system gnu-build-system)
+    (synopsis "Hello, GNU world: An example GNU package")
+    (description
+     "GNU Hello prints the message \"Hello, world!\" and then exits.  It
 serves as an example of standard GNU coding practices.  As such, it supports
 command-line arguments, multiple languages, and so on.")
-   (home-page "http://www.gnu.org/software/hello/")
-   (license gpl3+)))
+    (home-page "http://www.gnu.org/software/hello/")
+    (license gpl3+)))
 
 (define-public grep
   (package
diff --git a/gnu/packages/bioinformatics.scm b/gnu/packages/bioinformatics.scm
index bbd02f3123..1977fd3bf9 100644
--- a/gnu/packages/bioinformatics.scm
+++ b/gnu/packages/bioinformatics.scm
@@ -1,6 +1,8 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2014, 2015 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2015 Ben Woodcroft <donttrustben@gmail.com>
+;;; Copyright © 2015 Pjotr Prins <pjotr.guix@thebird.nl>
+;;; Copyright © 2015 Andreas Enge <andreas@enge.fr>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -27,6 +29,8 @@
   #:use-module (guix build-system cmake)
   #:use-module (guix build-system perl)
   #:use-module (guix build-system python)
+  #:use-module (guix build-system r)
+  #:use-module (guix build-system ruby)
   #:use-module (guix build-system trivial)
   #:use-module (gnu packages)
   #:use-module (gnu packages algebra)
@@ -45,6 +49,7 @@
   #:use-module (gnu packages popt)
   #:use-module (gnu packages protobuf)
   #:use-module (gnu packages python)
+  #:use-module (gnu packages ruby)
   #:use-module (gnu packages statistics)
   #:use-module (gnu packages tbb)
   #:use-module (gnu packages textutils)
@@ -1539,6 +1544,64 @@ resolution of binding sites through combining the information of both
 sequencing tag position and orientation.")
     (license license:bsd-3)))
 
+(define-public mafft
+  (package
+    (name "mafft")
+    (version "7.221")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "http://mafft.cbrc.jp/alignment/software/mafft-" version
+                    "-without-extensions-src.tgz"))
+              (file-name (string-append name "-" version ".tgz"))
+              (sha256
+               (base32
+                "0xi7klbsgi049vsrk6jiwh9wfj3b770gz3c8c7zwij448v0dr73d"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:tests? #f ; no automated tests, though there are tests in the read me
+       #:make-flags (let ((out (assoc-ref %outputs "out")))
+                      (list (string-append "PREFIX=" out)
+                            (string-append "BINDIR="
+                                           (string-append out "/bin"))))
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'enter-dir
+          (lambda _ (chdir "core") #t))
+         (add-after 'enter-dir 'patch-makefile
+          (lambda _
+            ;; on advice from the MAFFT authors, there is no need to
+            ;; distribute mafft-profile, mafft-distance, or
+            ;; mafft-homologs.rb as they are too "specialised".
+            (substitute* "Makefile"
+              ;; remove mafft-homologs.rb from SCRIPTS
+              (("^SCRIPTS = mafft mafft-homologs.rb")
+               "SCRIPTS = mafft")
+              ;; remove mafft-distance from PROGS
+              (("^PROGS = dvtditr dndfast7 dndblast sextet5 mafft-distance")
+               "PROGS = dvtditr dndfast7 dndblast sextet5")
+              ;; remove mafft-profile from PROGS
+              (("splittbfast disttbfast tbfast mafft-profile 2cl mccaskillwrap")
+               "splittbfast disttbfast tbfast f2cl mccaskillwrap")
+              (("^rm -f mafft-profile mafft-profile.exe") "#")
+              (("^rm -f mafft-distance mafft-distance.exe") ")#")
+              ;; do not install MAN pages in libexec folder
+              (("^\t\\$\\(INSTALL\\) -m 644 \\$\\(MANPAGES\\) \
+\\$\\(DESTDIR\\)\\$\\(LIBDIR\\)") "#"))
+            #t))
+         (delete 'configure))))
+    (inputs
+     `(("perl" ,perl)))
+    (home-page "http://mafft.cbrc.jp/alignment/software/")
+    (synopsis "Multiple sequence alignment program")
+    (description
+     "MAFFT offers a range of multiple alignment methods for nucleotide and
+protein sequences.  For instance, it offers L-INS-i (accurate; for alignment
+of <~200 sequences) and FFT-NS-2 (fast; for alignment of <~30,000
+sequences).")
+    (license (license:non-copyleft
+              "http://mafft.cbrc.jp/alignment/software/license.txt"
+              "BSD-3 with different formatting"))))
 
 (define-public metabat
   (package
@@ -2607,3 +2670,95 @@ data in the form of VCF files.")
     ;; The license is declared as LGPLv3 in the README and
     ;; at http://vcftools.sourceforge.net/license.html
     (license license:lgpl3)))
+
+(define-public bio-locus
+  (package
+    (name "bio-locus")
+    (version "0.0.7")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (rubygems-uri "bio-locus" version))
+       (sha256
+        (base32
+         "02vmrxyimkj9sahsp4zhfhnmbvz6dbbqz1y01vglf8cbwvkajfl0"))))
+    (build-system ruby-build-system)
+    (native-inputs
+     `(("ruby-rspec" ,ruby-rspec)))
+    (synopsis "Tool for fast querying of genome locations")
+    (description
+     "Bio-locus is a tabix-like tool for fast querying of genome
+locations.  Many file formats in bioinformatics contain records that
+start with a chromosome name and a position for a SNP, or a start-end
+position for indels.  Bio-locus allows users to store this chr+pos or
+chr+pos+alt information in a database.")
+    (home-page "https://github.com/pjotrp/bio-locus")
+    (license license:expat)))
+
+(define-public bioruby
+  (package
+    (name "bioruby")
+    (version "1.5.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (rubygems-uri "bio" version))
+       (sha256
+        (base32
+         "01k2fyjl5fpx4zn8g6gqiqvsg2j1fgixrs9p03vzxckynxdq3wmc"))))
+    (build-system ruby-build-system)
+    (propagated-inputs
+     `(("ruby-libxml" ,ruby-libxml)))
+    (native-inputs
+     `(("which" ,which)))  ; required for test phase
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-before 'build 'patch-test-command
+          (lambda _
+            (substitute* '("test/functional/bio/test_command.rb")
+              (("/bin/sh") (which "sh")))
+            (substitute* '("test/functional/bio/test_command.rb")
+              (("/bin/ls") (which "ls")))
+            (substitute* '("test/functional/bio/test_command.rb")
+              (("which") (which "which")))
+            (substitute* '("test/functional/bio/test_command.rb",
+                           "test/data/command/echoarg2.sh")
+              (("/bin/echo") (which "echo")))
+            #t)))))
+    (synopsis "Ruby library, shell and utilities for bioinformatics")
+    (description "BioRuby comes with a comprehensive set of Ruby development
+tools and libraries for bioinformatics and molecular biology.  BioRuby has
+components for sequence analysis, pathway analysis, protein modelling and
+phylogenetic analysis; it supports many widely used data formats and provides
+easy access to databases, external programs and public web services, including
+BLAST, KEGG, GenBank, MEDLINE and GO.")
+    (home-page "http://bioruby.org/")
+    ;; Code is released under Ruby license, except for setup
+    ;; (LGPLv2.1+) and scripts in samples (which have GPL2 and GPL2+)
+    (license (list license:ruby license:lgpl2.1+ license:gpl2+ ))))
+
+(define-public r-qtl
+ (package
+  (name "r-qtl")
+  (version "1.37-11")
+  (source
+   (origin
+    (method url-fetch)
+    (uri (string-append "mirror://cran/src/contrib/qtl_"
+                        version ".tar.gz"))
+    (sha256
+     (base32
+      "0h20d36mww7ljp51pfs66xq33yq4b4fwq9nsh02dpmfhlaxgx1xi"))))
+  (build-system r-build-system)
+  (home-page "http://rqtl.org/")
+  (synopsis "R package for analyzing QTL experiments in genetics")
+  (description "R/qtl is an extension library for the R statistics
+system.  It is used to analyze experimental crosses for identifying
+genes contributing to variation in quantitative traits (so-called
+quantitative trait loci, QTLs).
+
+Using a hidden Markov model, R/qtl allows to estimate genetic maps, to
+identify genotyping errors, and to perform single-QTL and two-QTL,
+two-dimensional genome scans.")
+  (license license:gpl3)))
diff --git a/gnu/packages/compression.scm b/gnu/packages/compression.scm
index df62e9963e..f4b327ecec 100644
--- a/gnu/packages/compression.scm
+++ b/gnu/packages/compression.scm
@@ -357,17 +357,15 @@ This package is mostly for compatibility and historical interest.")
 (define-public sfarklib
   (package
     (name "sfarklib")
-    (version "2.23.5ca96b779")
+    (version "2.24")
     (source (origin
-              ;; The 2.23 tarball does not include the Makefile, but only
-              ;; Makefile.am.
-              (method git-fetch)
-              (uri (git-reference
-                    (url "https://github.com/raboof/sfArkLib.git")
-                    (commit (last (string-split version #\.)))))
+              (method url-fetch)
+              (uri (string-append "https://github.com/raboof/sfArkLib/archive/"
+                                  version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "1hk1x88dl5b9jq016r6rx5wyszxknyv0sa7gmil4m4alnhwl4h7h"))))
+                "0bzs2d98rk1xw9qwpnc7gmlbxwmwc3dg1rpn310afy9pq1k9clzi"))))
     (build-system gnu-build-system)
     (arguments
      `(#:tests? #f ;no "check" target
diff --git a/gnu/packages/databases.scm b/gnu/packages/databases.scm
index e1cac39cc5..a17424196a 100644
--- a/gnu/packages/databases.scm
+++ b/gnu/packages/databases.scm
@@ -289,7 +289,8 @@ pictures, sounds, or video.")
     (arguments '(#:parallel-tests? #f))
 
     (native-inputs `(("emacs" ,emacs-no-x)
-                     ("bc" ,bc)))
+                     ("bc" ,bc)
+                     ("libuuid", util-linux)))
 
     ;; TODO: Add more optional inputs.
     ;; FIXME: Our Bash doesn't have development headers (need for the 'readrec'
diff --git a/gnu/packages/emacs.scm b/gnu/packages/emacs.scm
index b6ca6cfc66..dcbe5e5bd5 100644
--- a/gnu/packages/emacs.scm
+++ b/gnu/packages/emacs.scm
@@ -1092,3 +1092,77 @@ prefer the listing of bugs as TODO items of @code{org-mode}, you could use
 A minor mode @code{debbugs-browse-mode} let you browse URLs to the GNU Bug
 Tracker as well as bug identifiers prepared for @code{bug-reference-mode}.")
     (license license:gpl3+)))
+
+(define-public emacs-deferred
+  (package
+    (name "emacs-deferred")
+    (version "0.3.2")
+    (home-page "https://github.com/kiwanami/emacs-deferred")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url home-page)
+                    (commit (string-append "v" version))))
+              (sha256
+               (base32
+                "0059jy01ni5irpgrj9fa81ayd9j25nvmjjm79ms3210ysx4pgqdr"))
+              (file-name (string-append name "-" version))))
+    (build-system emacs-build-system)
+    ;; FIXME: Would need 'el-expectations' to actually run tests.
+    (synopsis "Simple asynchronous functions for Emacs Lisp")
+    (description
+     "The @code{deferred.el} library provides support for asynchronous tasks.
+The API is almost the same as that of
+@uref{https://github.com/cho45/jsdeferred, JSDeferred}, a JavaScript library
+for asynchronous tasks.")
+    (license license:gpl3+)))
+
+(define-public butler
+  (package
+    (name "emacs-butler")
+    (version "0.2.4")
+    (home-page "https://github.com/AshtonKem/Butler")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url home-page)
+                    (commit version)))
+              (sha256
+               (base32
+                "1pii9dw4skq7nr4na6qxqasl36av8cwjp71bf1fgppqpcd9z8skj"))
+              (file-name (string-append name "-" version))))
+    (build-system emacs-build-system)
+    (propagated-inputs
+     `(("emacs-deferred" ,emacs-deferred)))
+    (synopsis "Emacs client for Jenkins")
+    (description
+     "Butler provides an interface to connect to Jenkins continuous
+integration servers.  Users can specify a list of server in the
+@code{butler-server-list} variable and then use @code{M-x butler-status} to
+view the build status of those servers' build jobs, and possibly to trigger
+build jobs.")
+    (license license:gpl3+)))
+
+(define-public typo
+  (package
+    (name "emacs-typo")
+    (version "1.1")
+    (home-page "https://github.com/jorgenschaefer/typoel")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url home-page)
+                    (commit (string-append "v" version))))
+              (sha256
+               (base32
+                "1jhd4grch5iz12gyxwfbsgh4dmz5hj4bg4gnvphccg8dsnni05k2"))
+              (file-name (string-append name "-" version))))
+    (build-system emacs-build-system)
+    (synopsis "Minor mode for typographic editing")
+    (description
+     "This package provides two Emacs modes, @code{typo-mode} and
+@code{typo-global-mode}.  These modes automatically insert Unicode characters
+for quotation marks, dashes, and ellipses.  For example, typing @kbd{\"}
+automatically inserts a Unicode opening or closing quotation mark, depending
+on context.")
+    (license license:gpl3+)))
diff --git a/gnu/packages/game-development.scm b/gnu/packages/game-development.scm
index 9c918dee35..c1757ac4de 100644
--- a/gnu/packages/game-development.scm
+++ b/gnu/packages/game-development.scm
@@ -102,19 +102,21 @@ clone.")
 (define-public sfml
   (package
     (name "sfml")
-    (version "2.3.1")
+    (version "2.3.2")
     (source (origin
               (method url-fetch)
-              (uri (string-append "http://mirror0.sfml-dev.org/files/SFML-"
-                                  version "-sources.zip"))
+              ;; Do not fetch the archives from
+              ;; http://mirror0.sfml-dev.org/files/ because files there seem
+              ;; to be changed in place.
+              (uri (string-append "https://github.com/SFML/SFML/archive/"
+                                  version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "0mjpkgfnz6ka4p0ir219pcqsbdy7gwcjydk7xxmjjfm2k5sw2qys"))))
+                "0k2fl5xk3ni2q8bsxl0551inx26ww3w6cp6hssvww0wfjdjcirsm"))))
     (build-system cmake-build-system)
     (arguments
      '(#:tests? #f)) ; no tests
-    (native-inputs
-     `(("unzip" ,unzip)))
     (inputs
      `(("mesa" ,mesa)
        ("glew" ,glew)
diff --git a/gnu/packages/gnome.scm b/gnu/packages/gnome.scm
index b55058b169..b4b5c237c9 100644
--- a/gnu/packages/gnome.scm
+++ b/gnu/packages/gnome.scm
@@ -44,6 +44,7 @@
   #:use-module (gnu packages djvu)
   #:use-module (gnu packages flex)
   #:use-module (gnu packages docbook)
+  #:use-module (gnu packages gettext)
   #:use-module (gnu packages glib)
   #:use-module (gnu packages gnupg)
   #:use-module (gnu packages gnuzilla)
@@ -60,6 +61,7 @@
   #:use-module (gnu packages libusb)
   #:use-module (gnu packages lirc)
   #:use-module (gnu packages lua)
+  #:use-module (gnu packages m4)
   #:use-module (gnu packages image)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages photo)
@@ -69,6 +71,7 @@
   #:use-module (gnu packages scanner)
   #:use-module (gnu packages ssh)
   #:use-module (gnu packages xml)
+  #:use-module (gnu packages geeqie)
   #:use-module (gnu packages gl)
   #:use-module (gnu packages qt)  ; for libxkbcommon
   #:use-module (gnu packages compression)
@@ -3500,3 +3503,125 @@ manage, and publish documentation for Yelp and the web.  Most of the heavy
 lifting is done by packages like yelp-xsl and itstool.  This package just
 wraps things up in a developer-friendly way.")
     (license license:gpl2+)))
+
+(define-public libgee
+  (package
+    (name "libgee")
+    (version "0.18.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://gnome/sources/" name "/"
+                                  (version-major+minor version) "/"
+                                  name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "16a34js81w9m2bw4qd8csm4pcgr3zq5z87867j4b8wfh6zwrxnaa"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'fix-introspection-install-dir
+          (lambda* (#:key outputs #:allow-other-keys)
+            (let ((out (assoc-ref outputs "out")))
+              (substitute* "gee/Makefile.in"
+                (("@INTROSPECTION_GIRDIR@")
+                 (string-append out "/share/gir-1.0/"))
+                (("@INTROSPECTION_TYPELIBDIR@")
+                 (string-append out "/lib/girepository-1.0/")))))))))
+    (native-inputs
+     `(("glib" ,glib "bin")
+       ("pkg-config" ,pkg-config)))
+    (inputs
+     `(("glib" ,glib)
+       ("gobject-introspection" ,gobject-introspection)))
+    (home-page "https://wiki.gnome.org/Projects/Libgee")
+    (synopsis "GObject collection library")
+    (description
+     "Libgee is a utility library providing GObject-based interfaces and
+classes for commonly used data structures.")
+    (license license:lgpl2.1+)))
+
+(define-public gexiv2
+  (package
+    (name "gexiv2")
+    (version "0.10.3")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://gnome/sources/" name "/"
+                                  (version-major+minor version) "/"
+                                  name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "121r5lv6l82pjr0ycdf2b01mdwy7sxwca2r068zrzylpc6bgn31r"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("glib" ,glib "bin")
+       ("pkg-config" ,pkg-config)))
+    (propagated-inputs
+     ;; Listed in "Requires" section of gexiv2.pc
+     `(("exiv2" ,exiv2)))
+    (inputs
+     `(("glib" ,glib)
+       ("gobject-introspection" ,gobject-introspection)))
+    (home-page "https://wiki.gnome.org/Projects/gexiv2")
+    (synopsis "GObject wrapper around the Exiv2 photo metadata library")
+    (description
+     "Gexiv2 is a GObject wrapper around the Exiv2 photo metadata library.  It
+allows for GNOME applications to easily inspect and update EXIF, IPTC, and XMP
+metadata in photo and video files of various formats.")
+    (license license:gpl2+)))
+
+(define-public shotwell
+  (package
+    (name "shotwell")
+    (version "0.22.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://gnome/sources/" name "/"
+                                  (version-major+minor version) "/"
+                                  name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0cgqaaikrb10plhf6zxbgqy32zqpiwyi9dpx3g8yr261q72r5c81"))))
+    (build-system glib-or-gtk-build-system)
+    (arguments
+     `(#:tests? #f ;no "check" target
+       #:make-flags '("CC=gcc")
+       #:configure-flags '("--disable-gsettings-convert-install")
+       #:out-of-source? #f))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)
+       ("gettext" ,gnu-gettext)
+       ("m4" ,m4)
+       ("desktop-file-utils" ,desktop-file-utils)
+       ("vala" ,vala)
+       ("which" ,which)
+       ("gnome-doc-utils" ,gnome-doc-utils)
+       ;; FIXME: I only added python2-libxml2 because xml2po needs it at
+       ;; runtime.  It should be propagated.
+       ("python2-libxml2" ,python2-libxml2)
+       ("python2" ,python-2)))
+    (inputs
+     `(("gstreamer" ,gstreamer)
+       ("gst-plugins-base" ,gst-plugins-base)
+       ("gst-plugins-good" ,gst-plugins-good)
+       ("libgee" ,libgee)
+       ("gexiv2" ,gexiv2)
+       ("libraw" ,libraw)
+       ("json-glib" ,json-glib)
+       ("rest" ,rest)
+       ("webkitgtk" ,webkitgtk-2.4)
+       ("sqlite" ,sqlite)
+       ("libsoup" ,libsoup)
+       ("libxml2" ,libxml2)
+       ("gtk+" ,gtk+)
+       ("libgudev" ,libgudev)
+       ("libgphoto2" ,libgphoto2)))
+    (home-page "https://wiki.gnome.org/Apps/Shotwell")
+    (synopsis "Photo manager for GNOME 3")
+    (description
+     "Shotwell is a digital photo manager designed for the GNOME desktop
+environment.  It allows you to import photos from disk or camera, organize
+them by keywords and events, view them in full-window or fullscreen mode, and
+share them with others via social networking and more.")
+    (license license:lgpl2.1+)))
diff --git a/gnu/packages/gnu-pw-mgr.scm b/gnu/packages/gnu-pw-mgr.scm
index 7a9b0b9810..e7b93f024e 100644
--- a/gnu/packages/gnu-pw-mgr.scm
+++ b/gnu/packages/gnu-pw-mgr.scm
@@ -29,7 +29,7 @@
 (define-public gnu-pw-mgr
   (package
     (name "gnu-pw-mgr")
-    (version "1.4")
+    (version "1.5")
     (source
      (origin
       (method url-fetch)
@@ -37,7 +37,7 @@
                           version ".tar.xz"))
       (sha256
        (base32
-        "0a352y1m33vp6zmdbn96fdrq9gr9lchc9vcrj14mfx7g0dsvxjns"))))
+        "1winmckl4h8lypg57hd3nd7jscpdr7f1v8zi432k5h648izkf2dg"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("which" ,which)
diff --git a/gnu/packages/guile.scm b/gnu/packages/guile.scm
index f06f66c7a5..d5a95a0444 100644
--- a/gnu/packages/guile.scm
+++ b/gnu/packages/guile.scm
@@ -185,18 +185,19 @@ without requiring the source code to be rewritten.")
   ;; in the `base' module, and thus changing it entails a full rebuild.
   guile-2.0)
 
-(define-public guile-for-guile-emacs
+(define-public guile-next
   (package (inherit guile-2.0)
-    (name "guile-for-guile-emacs")
-    (version "20150510.d8d9a8d")
+    (name "guile-next")
+    (version "20150815.00884bb")
     (source (origin
               (method git-fetch)
               (uri (git-reference
-                    (url "git://git.hcoop.net/git/bpt/guile.git")
-                    (commit "d8d9a8da05ec876acba81a559798eb5eeceb5a17")))
+                    (url "git://git.sv.gnu.org/guile.git")
+                    (commit "00884bb79fff41fdf5f22f24a74e366a94a14c9b")))
               (sha256
                (base32
-                "00sprsshy16y8pxjy126hr2adqcvvzzz96hjyjwgg8swva1qh6b0"))))
+                "0qk8m9aq3i7pzw6npim58xmsvjqfz5kl1pkyb6b43awn2vydydi5"))))
+
     (arguments
      (substitute-keyword-arguments `(;; Tests aren't passing for now.
                                      ;; Obviously we should re-enable this!
@@ -212,6 +213,7 @@ without requiring the source code to be rewritten.")
                          (substitute* "build-aux/git-version-gen"
                            (("#!/bin/sh") (string-append "#!" (which "sh"))))
                          #t))))))
+    (synopsis "Snapshot of what will become version 2.2 of GNU Guile")
     (native-inputs
      `(("autoconf" ,autoconf)
        ("automake" ,automake)
@@ -221,6 +223,19 @@ without requiring the source code to be rewritten.")
        ("gettext" ,gnu-gettext)
        ,@(package-native-inputs guile-2.0)))))
 
+(define-public guile-for-guile-emacs
+  (package (inherit guile-next)
+    (name "guile-for-guile-emacs")
+    (version "20150510.d8d9a8d")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "git://git.hcoop.net/git/bpt/guile.git")
+                    (commit "d8d9a8da05ec876acba81a559798eb5eeceb5a17")))
+              (sha256
+               (base32
+                "00sprsshy16y8pxjy126hr2adqcvvzzz96hjyjwgg8swva1qh6b0"))))))
+
 
 ;;;
 ;;; Extensions.
diff --git a/gnu/packages/libusb.scm b/gnu/packages/libusb.scm
index e7f5b8b119..266669061e 100644
--- a/gnu/packages/libusb.scm
+++ b/gnu/packages/libusb.scm
@@ -96,7 +96,8 @@ version of libusb to run with newer libusb.")
                                  "/libmtp-" version ".tar.gz"))
              (sha256
                (base32
-                "12dinqic0ljnhrwx3rc61jc7q24ybr0mckc2ya5kh1s1np0d7w93"))))
+                "12dinqic0ljnhrwx3rc61jc7q24ybr0mckc2ya5kh1s1np0d7w93"))
+             (patches (list (search-patch "libmtp-devices.patch")))))
     (build-system gnu-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)))
diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index e7127ffa58..d2619335a3 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -210,7 +210,7 @@ for SYSTEM, or #f if there is no configuration for SYSTEM."
      #f)))
 
 (define-public linux-libre
-  (let* ((version "4.2")
+  (let* ((version "4.2.1")
          (build-phase
           '(lambda* (#:key system inputs #:allow-other-keys #:rest args)
              ;; Apply the neat patch.
@@ -283,7 +283,7 @@ for SYSTEM, or #f if there is no configuration for SYSTEM."
              (uri (linux-libre-urls version))
              (sha256
               (base32
-               "0jfgbr9qc92bk7hyfdvw030xyic2bg834l8cxp25rw9qbbdck3rs"))))
+               "140cqnk1hyhavfra572wwzwz7pddczc78j8anbxyciw35kh8z2hl"))))
     (build-system gnu-build-system)
     (native-inputs `(("perl" ,perl)
                      ("bc" ,bc)
diff --git a/gnu/packages/music.scm b/gnu/packages/music.scm
index 05a490574b..78310edf0e 100644
--- a/gnu/packages/music.scm
+++ b/gnu/packages/music.scm
@@ -187,7 +187,7 @@ you to define complex tempo maps for entire songs or performances.")
 (define-public lilypond
   (package
     (name "lilypond")
-    (version "2.18.2")
+    (version "2.19.27")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -196,14 +196,15 @@ you to define complex tempo maps for entire songs or performances.")
                     name "-" version ".tar.gz"))
               (sha256
                (base32
-                "01xs9x2wjj7w9appaaqdhk15r1xvvdbz9qwahzhppfmhclvp779j"))))
+                "11v4jr4qj1jpqvjw1ww7riv8pxfyasif8mf16l447f1xq1ifhkhs"))))
     (build-system gnu-build-system)
     (arguments
-     `(;; Tests fail with this error:
-       ;; Undefined subroutine &main::get_index called at
-       ;; ./lilypond-2.18.2/Documentation/lilypond-texi2html.init line 2127.
-       #:tests? #f
+     `(#:tests? #f ; out-test/collated-files.html fails
        #:out-of-source? #t
+       #:configure-flags
+       (list (string-append "--with-texgyre-dir="
+                            (assoc-ref %build-inputs "font-tex-gyre")
+                            "/share/fonts/opentype/"))
        #:phases
        (alist-cons-before
         'configure 'prepare-configuration
@@ -216,6 +217,7 @@ you to define complex tempo maps for entire songs or performances.")
     (inputs
      `(("guile" ,guile-1.8)
        ("font-dejavu" ,font-dejavu)
+       ("font-tex-gyre" ,font-tex-gyre)
        ("fontconfig" ,fontconfig)
        ("freetype" ,freetype)
        ("ghostscript" ,ghostscript)
diff --git a/gnu/packages/networking.scm b/gnu/packages/networking.scm
index dc139e28fe..0a7cde0b0d 100644
--- a/gnu/packages/networking.scm
+++ b/gnu/packages/networking.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
+;;; Copyright © 2015 Stefan Reichör <stefan@xsteve.at>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -23,7 +24,8 @@
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix build-system gnu)
-  #:use-module (gnu packages tls))
+  #:use-module (gnu packages tls)
+  #:use-module (gnu packages ncurses))
 
 (define-public miredo
   (package
@@ -146,3 +148,42 @@ receiving NDP messages.")
 auto-negotiation and checksum offload on many network devices, especially
 Ethernet devices.")
     (license license:gpl2)))
+
+(define-public ifstatus
+  (package
+    (name "ifstatus")
+    (version "1.1.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://sourceforge/ifstatus/ifstatus-v"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "045cbsq9ps32j24v8y5hpyqxnqn9mpaf3mgvirlhgpqyb9jsia0c"))
+              (modules '((guix build utils)))
+              (snippet
+               '(substitute* "Main.h"
+                  (("#include <stdio.h>")
+                   "#include <stdio.h>\n#include <stdlib.h>")))))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:tests? #f                                ; no "check" target
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)             ; no configure script
+         (replace 'install
+                  (lambda* (#:key outputs #:allow-other-keys)
+                    (let* ((out (assoc-ref outputs "out"))
+                           (bin (string-append out "/bin")))
+                      (mkdir-p bin)
+                      (copy-file "ifstatus"
+                                 (string-append bin "/ifstatus"))))))))
+    (inputs `(("ncurses" ,ncurses)))
+    (home-page "http://ifstatus.sourceforge.net/graphic/index.html")
+    (synopsis "Text based network interface status monitor")
+    (description
+     "IFStatus is a simple, easy-to-use program for displaying commonly
+needed/wanted real-time traffic statistics of multiple network
+interfaces, with a simple and efficient view on the command line.  It is
+intended as a substitute for the PPPStatus and EthStatus projects.")
+    (license license:gpl2+)))
diff --git a/gnu/packages/openstack.scm b/gnu/packages/openstack.scm
index 91686441ba..39584d566f 100644
--- a/gnu/packages/openstack.scm
+++ b/gnu/packages/openstack.scm
@@ -25,6 +25,41 @@
                 #:select (asl2.0))
   #:use-module (guix packages))
 
+(define-public python-debtcollector
+  (package
+    (name "python-debtcollector")
+    (version "0.5.0")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (string-append
+               "https://pypi.python.org/packages/source/d/debtcollector/"
+               "debtcollector-" version ".tar.gz"))
+        (sha256
+          (base32
+            "0amlcg5f98lk2mfzdg44slh1nsi2y4ds123g5d57376fjk2b3njd"))))
+    (build-system python-build-system)
+    (propagated-inputs
+     `(("python-six" ,python-six)
+       ("python-wrapt" ,python-wrapt)))
+    (inputs
+      `(("python-babel" ,python-babel)
+        ("python-pbr" ,python-pbr)
+        ("python-setuptools" ,python-setuptools)
+        ;; Tests.
+        ("python-oslotest" ,python-oslotest)))
+    (home-page "http://www.openstack.org/")
+    (synopsis
+      "Find deprecated patterns and strategies in Python code")
+    (description
+      "This package provides a collection of Python deprecation patterns and
+strategies that help you collect your technical debt in a non-destructive
+manner.")
+    (license asl2.0)))
+
+(define-public python2-debtcollector
+  (package-with-python2 python-debtcollector))
+
 (define-public python-mox3
   (package
     (name "python-mox3")
@@ -139,7 +174,147 @@ and sensible default behaviors into your setuptools run.")
 (define-public python2-pbr
   (package-with-python2 python-pbr))
 
+(define-public python-requests-mock
+  (package
+    (name "python-requests-mock")
+    (version "0.6.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "https://pypi.python.org/packages/source/r/requests-mock/"
+             "requests-mock-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0gmd88c224y53b1ai8cfsrcxm9kw3gdqzysclmnaqspg7zjhxwd1"))))
+    (build-system python-build-system)
+    (propagated-inputs
+      `(("python-requests" ,python-requests)
+        ("python-six" ,python-six)))
+    (inputs
+      `(("python-mock" ,python-mock)
+        ("python-pbr" ,python-pbr)
+        ("python-setuptools" ,python-setuptools)))
+    (home-page "https://requests-mock.readthedocs.org/")
+    (synopsis "Mock out responses from the requests package")
+    (description
+      "This module provides a building block to stub out the HTTP requests
+portions of your testing code.")
+    (license asl2.0)))
+
+(define-public python2-requests-mock
+  (package-with-python2 python-requests-mock))
+
+(define-public python-stevedore
+  (package
+    (name "python-stevedore")
+    (version "1.7.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "https://pypi.python.org/packages/source/s/stevedore/stevedore-"
+             version
+             ".tar.gz"))
+       (sha256
+         (base32
+          "149pjc0c3z6khjisn4yil3f94qjnzwafz093wc8rrzbw828qdkv8"))))
+    (build-system python-build-system)
+    (propagated-inputs
+      `(("python-six" ,python-six)))
+    (inputs
+      `(("python-pbr" ,python-pbr)
+        ("python-setuptools" ,python-setuptools)
+        ;; Tests
+        ("python-docutils" ,python-docutils)
+        ("python-mock" ,python-mock)
+        ("python-oslotest" ,python-oslotest)
+        ("python-sphinx" ,python-sphinx)))
+    (home-page "https://github.com/dreamhost/stevedore")
+    (synopsis "Manage dynamic plugins for Python applications")
+    (description
+      "Python makes loading code dynamically easy, allowing you to configure
+and extend your application by discovering and loading extensions (“plugins”)
+at runtime.  Many applications implement their own library for doing this,
+using __import__ or importlib.  stevedore avoids creating yet another extension
+mechanism by building on top of setuptools entry points.  The code for managing
+entry points tends to be repetitive, though, so stevedore provides manager
+classes for implementing common patterns for using dynamically loaded
+extensions.")
+    (license asl2.0)))
+
+(define-public python2-stevedore
+  (package-with-python2 python-stevedore))
+
 ;; Packages from the Oslo library
+(define-public python-oslo.config
+  (package
+    (name "python-oslo.config")
+    (version "2.4.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "https://pypi.python.org/packages/source/o/oslo.config/oslo.config-"
+             version
+             ".tar.gz"))
+       (sha256
+         (base32
+          "13r778jfb0fhna37c2pd1f2xipnsbd7zli7qhn96acrzymrwj5k1"))))
+    (build-system python-build-system)
+    (propagated-inputs
+      `(("python-netaddr" ,python-netaddr)
+        ("python-six" ,python-six)
+        ("python-stevedore" ,python-stevedore)))
+    (inputs
+      `(("python-pbr" ,python-pbr)
+        ("python-setuptools" ,python-setuptools)
+        ;; Tests
+        ("python-oslo.i18n" ,python-oslo.i18n)
+        ("python-mock" ,python-mock)
+        ("python-oslotest" ,python-oslotest)
+        ("python-testscenarios" ,python-testscenarios)))
+    (home-page "https://launchpad.net/oslo")
+    (synopsis "Oslo Configuration API")
+    (description
+      "The Oslo configuration API supports parsing command line arguments and
+.ini style configuration files.")
+    (license asl2.0)))
+
+(define-public python2-oslo.config
+  (package-with-python2 python-oslo.config))
+
+(define-public python-oslo.context
+  (package
+    (name "python-oslo.context")
+    (version "0.6.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "https://pypi.python.org/packages/source/o/oslo.context/"
+             "oslo.context-" version ".tar.gz"))
+       (sha256
+        (base32
+         "16wr9qrkc3lb94ssb14qid4liza66x316fvzjw0izg67h1a0fm86"))))
+    (build-system python-build-system)
+    (inputs
+      `(("python-babel" ,python-babel)
+        ("python-pbr" ,python-pbr)
+        ("python-setuptools" ,python-setuptools)
+        ;; Tests.
+        ("python-oslotest" ,python-oslotest)))
+    (home-page "http://launchpad.net/oslo")
+    (synopsis "Oslo context library")
+    (description
+      "The Oslo context library has helpers to maintain useful information
+about a request context.  The request context is usually populated in the WSGI
+pipeline and used by various modules such as logging.")
+    (license asl2.0)))
+
+(define-public python2-oslo.context
+  (package-with-python2 python-oslo.context))
+
 (define-public python-oslo.i18n
   (package
     (name "python-oslo.i18n")
@@ -177,6 +352,45 @@ in an application or library.")
 (define-public python2-oslo.i18n
   (package-with-python2 python-oslo.i18n))
 
+(define-public python-oslo.serialization
+  (package
+    (name "python-oslo.serialization")
+    (version "1.9.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "https://pypi.python.org/packages/source/o/oslo.serialization/"
+             "oslo.serialization-" version ".tar.gz"))
+       (sha256
+        (base32
+         "00qaxg155s61ylh4fqc7m5fh0gijf33khhai9xvcsc9k106i3c9c"))))
+    (build-system python-build-system)
+    (propagated-inputs
+      `(("python-iso8601" ,python-iso8601)
+        ("python-netaddr" ,python-netaddr)
+        ("python-oslo.utils" ,python-oslo.utils)
+        ("python-simplejson" ,python-simplejson)
+        ("python-six" ,python-six)
+        ("python-pytz" ,python-pytz)))
+    (inputs
+      `(("python-babel" ,python-babel)
+        ("python-pbr" ,python-pbr)
+        ("python-setuptools" ,python-setuptools)
+        ;; Tests.
+        ("python-mock" ,python-mock)
+        ("python-oslo.i18n" ,python-oslo.i18n)
+        ("python-oslotest" ,python-oslotest)))
+    (home-page "http://launchpad.net/oslo")
+    (synopsis "Oslo serialization library")
+    (description
+      "The oslo.serialization library provides support for representing objects
+in transmittable and storable formats, such as JSON and MessagePack.")
+    (license asl2.0)))
+
+(define-public python2-oslo.serialization
+  (package-with-python2 python-oslo.serialization))
+
 (define-public python-oslotest
   (package
     (name "python-oslotest")
@@ -214,3 +428,52 @@ and better support for mocking results.")
 
 (define-public python2-oslotest
   (package-with-python2 python-oslotest))
+
+(define-public python-oslo.utils
+  (package
+    (name "python-oslo.utils")
+    (version "2.5.0")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (string-append
+               "https://pypi.python.org/packages/source/o/oslo.utils/oslo.utils-"
+               version
+               ".tar.gz"))
+        (sha256
+          (base32
+            "11b073gblhzkxhi1j6sqk3apq2ll8xhi9h9g9kxzx9dycqdq0qp0"))
+        (snippet
+         '(begin
+            ;; FIXME: setuptools fails to import this file during the test
+            ;; phase.
+            (delete-file "oslo_utils/tests/test_netutils.py")))))
+    (build-system python-build-system)
+    (propagated-inputs
+      `(("python-debtcollector" ,python-debtcollector)
+        ("python-oslo.i18n" ,python-oslo.i18n)
+        ("python-iso8601" ,python-iso8601)
+        ("python-monotonic" ,python-monotonic)
+        ("python-netaddr" ,python-netaddr)
+        ("python-netifaces" ,python-netifaces)
+        ("python-pytz" ,python-pytz)
+        ("python-six" ,python-six)))
+    (inputs
+      `(("python-babel" ,python-babel)
+        ("python-pbr" ,python-pbr)
+        ("python-setuptools" ,python-setuptools)
+        ;; Tests.
+        ("python-oslotest" ,python-oslotest)
+        ("python-mock" ,python-mock)
+        ("python-mox3" ,python-mox3)
+        ("python-testscenarios" ,python-testscenarios)))
+    (home-page "http://launchpad.net/oslo")
+    (synopsis "Oslo utility library")
+    (description
+      "The @code{oslo.utils} library provides support for common utility type
+functions, such as encoding, exception handling, string manipulation, and time
+handling.")
+    (license asl2.0)))
+
+(define-public python2-oslo.utils
+  (package-with-python2 python-oslo.utils))
diff --git a/gnu/packages/password-utils.scm b/gnu/packages/password-utils.scm
index 4aef371615..8619f14f38 100644
--- a/gnu/packages/password-utils.scm
+++ b/gnu/packages/password-utils.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2015 Steve Sprang <scs@stevesprang.com>
+;;; Copyright © 2015 Efraim Flashner <efraim@flashner.co.il>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -18,9 +19,14 @@
 
 (define-module (gnu packages password-utils)
   #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix build-system cmake)
   #:use-module (guix build-system gnu)
   #:use-module (guix download)
-  #:use-module (guix packages))
+  #:use-module (guix packages)
+  #:use-module (gnu packages compression)
+  #:use-module (gnu packages gnupg)
+  #:use-module (gnu packages qt)
+  #:use-module (gnu packages xorg))
 
 (define-public pwgen
   (package
@@ -41,3 +47,32 @@
     (description "Pwgen generates passwords which can be easily memorized by a
 human.")
     (license license:gpl2)))
+
+(define-public keepassx
+  (package
+    (name "keepassx")
+    (version "2.0-beta2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://github.com/keepassx/keepassx/archive/"
+                           version ".tar.gz"))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "0ljf9ws3wh62zd0gyb0vk2qw6pqsmxrlybrfs5mqahf44q92ca2q"))))
+    (build-system cmake-build-system)
+    (inputs
+     `(("libgcrypt" ,libgcrypt)
+       ("libxtst" ,libxtst)
+       ("qt" ,qt-4)))
+    (native-inputs
+     `(("zlib" ,zlib)))
+    (home-page "https://www.keepassx.org")
+    (synopsis "Password manager")
+    (description "KeePassX is a password manager or safe which helps you to
+manage your passwords in a secure way.  You can put all your passwords in one
+database, which is locked with one master key or a key-file which can be stored
+on an external storage device.  The databases are encrypted using the
+algorithms AES or Twofish.")
+    ;; Non functional parts use various licences.
+    (license license:gpl3)))
diff --git a/gnu/packages/patches/libmtp-devices.patch b/gnu/packages/patches/libmtp-devices.patch
new file mode 100644
index 0000000000..9b985e526d
--- /dev/null
+++ b/gnu/packages/patches/libmtp-devices.patch
@@ -0,0 +1,554 @@
+Add additional devices; the patched file corresponds to git commit 8e471b,
+to which one additional device has been added as reported at
+   http://sourceforge.net/p/libmtp/bugs/1422/
+
+diff -u -r libmtp-1.1.9.orig/src/music-players.h libmtp-1.1.9/src/music-players.h
+--- libmtp-1.1.9.orig/src/music-players.h	2015-09-19 22:54:24.537330594 +0200
++++ libmtp-1.1.9/src/music-players.h	2015-09-19 23:16:41.079206331 +0200
+@@ -47,82 +47,61 @@
+    * and properties.
+    */
+   { "Creative", 0x041e, "ZEN Vision", 0x411f,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   { "Creative", 0x041e, "Portable Media Center", 0x4123,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   { "Creative", 0x041e, "ZEN Xtra (MTP mode)", 0x4128,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   { "Dell", 0x041e, "DJ (2nd generation)", 0x412f,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   { "Creative", 0x041e, "ZEN Micro (MTP mode)", 0x4130,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   { "Creative", 0x041e, "ZEN Touch (MTP mode)", 0x4131,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   { "Dell", 0x041e, "Dell Pocket DJ (MTP mode)", 0x4132,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
+- { "Creative", 0x041e, "ZEN MicroPhoto (alternate version)", 0x4133,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
++  { "Creative", 0x041e, "ZEN MicroPhoto (alternate version)", 0x4133,
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   { "Creative", 0x041e, "ZEN Sleek (MTP mode)", 0x4137,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   { "Creative", 0x041e, "ZEN MicroPhoto", 0x413c,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   { "Creative", 0x041e, "ZEN Sleek Photo", 0x413d,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   { "Creative", 0x041e, "ZEN Vision:M", 0x413e,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   // Reported by marazm@o2.pl
+   { "Creative", 0x041e, "ZEN V", 0x4150,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   // Reported by danielw@iinet.net.au
+   // This version of the Vision:M needs the no release interface flag,
+   // unclear whether the other version above need it too or not.
+   { "Creative", 0x041e, "ZEN Vision:M (DVP-HD0004)", 0x4151,
+       DEVICE_FLAG_NO_RELEASE_INTERFACE |
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   // Reported by Darel on the XNJB forums
+   { "Creative", 0x041e, "ZEN V Plus", 0x4152,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   { "Creative", 0x041e, "ZEN Vision W", 0x4153,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   // Don't add 0x4155: this is a Zen Stone device which is not MTP
+   // Reported by Paul Kurczaba <paul@kurczaba.com>
+   { "Creative", 0x041e, "ZEN", 0x4157,
+       DEVICE_FLAG_IGNORE_HEADER_ERRORS |
+       DEVICE_FLAG_BROKEN_SET_SAMPLE_DIMENSIONS |
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   // Reported by Ringofan <mcroman@users.sourceforge.net>
+   { "Creative", 0x041e, "ZEN V 2GB", 0x4158,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   // Reported by j norment <stormzen@gmail.com>
+   { "Creative", 0x041e, "ZEN Mozaic", 0x4161,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   // Reported by Aaron F. Gonzalez <sub_tex@users.sourceforge.net>
+   { "Creative", 0x041e, "ZEN X-Fi", 0x4162,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   // Reported by farmerstimuli <farmerstimuli@users.sourceforge.net>
+   { "Creative", 0x041e, "ZEN X-Fi 3", 0x4169,
+-      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL |
+-      DEVICE_FLAG_BROKEN_GET_OBJECT_PROPVAL },
++      DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST_ALL },
+   // Reported by Todor Gyumyushev <yodor1@users.sourceforge.net>
+   { "ZiiLABS", 0x041e, "Zii EGG", 0x6000,
+       DEVICE_FLAG_UNLOAD_DRIVER |
+@@ -607,8 +586,17 @@
+   /* https://sourceforge.net/p/libmtp/bugs/1251/ */
+   { "Acer", 0x0502, "E39", 0x3643,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1369/ */
++  { "Acer", 0x0502, "liquid e700", 0x3644,
++      DEVICE_FLAGS_ANDROID_BUGS },
+   { "Acer", 0x0502, "One 7", 0x3657,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/support-requests/183/ */
++  { "Acer", 0x0502, "Z200", 0x3683,
++      DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1341/ */
++  { "Acer", 0x0502, "Liquid S56", 0x3725,
++      DEVICE_FLAGS_ANDROID_BUGS },
+ 
+   /*
+    * SanDisk
+@@ -952,6 +940,7 @@
+   { "Archos", 0x0e79, "SPOD (MTP mode)", 0x1341, DEVICE_FLAG_UNLOAD_DRIVER },
+   { "Archos", 0x0e79, "5S IT (MTP mode)", 0x1351, DEVICE_FLAG_UNLOAD_DRIVER },
+   { "Archos", 0x0e79, "5H IT (MTP mode)", 0x1357, DEVICE_FLAG_UNLOAD_DRIVER },
++  { "Archos", 0x0e79, "48 (MTP mode)", 0x1421, DEVICE_FLAGS_ANDROID_BUGS },
+   { "Archos", 0x0e79, "Arnova Childpad", 0x1458, DEVICE_FLAGS_ANDROID_BUGS },
+   { "Archos", 0x0e79, "Arnova 8c G3", 0x145e, DEVICE_FLAGS_ANDROID_BUGS },
+   { "Archos", 0x0e79, "Arnova 10bG3 Tablet", 0x146b, DEVICE_FLAGS_ANDROID_BUGS },
+@@ -973,9 +962,17 @@
+   { "Archos", 0x0e79, "70it2 (ID 2)", 0x1569, DEVICE_FLAGS_ANDROID_BUGS },
+   { "Archos", 0x0e79, "50c", 0x2008, DEVICE_FLAGS_ANDROID_BUGS },
+   { "Archos", 0x0e79, "C40", 0x31ab, DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1393/ */
++  { "Archos", 0x0e79, "Phone", 0x31e1, DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1325/ */
++  { "Archos", 0x0e79, "45 Neon", 0x31f3, DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1352/ */
++  { "Archos", 0x0e79, "50 Diamond", 0x3229, DEVICE_FLAGS_ANDROID_BUGS },
+   { "Archos", 0x0e79, "101 G4", 0x4002, DEVICE_FLAGS_ANDROID_BUGS },
+   { "Archos (for Tesco)", 0x0e79, "Hudl (ID1)", 0x5008, DEVICE_FLAGS_ANDROID_BUGS },
+   { "Archos (for Tesco)", 0x0e79, "Hudl (ID2)", 0x5009, DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1404/ */
++  { "Archos", 0x0e79, "AC40DTI", 0x5217, DEVICE_FLAGS_ANDROID_BUGS },
+ 
+   /*
+    * Dunlop (OEM of EGOMAN ltd?) reported by Nanomad
+@@ -1181,6 +1178,10 @@
+   { "Qualcomm (for OnePlus)", 0x05c6, "One (MTP+ADB)",
+       0x6765, DEVICE_FLAGS_ANDROID_BUGS },
+ 
++  /* https://sourceforge.net/p/libmtp/bugs/1377/ */
++  { "Qualcomm (for Xolo)", 0x901b, "Xolo Black (MTP)",
++      0x9039, DEVICE_FLAGS_ANDROID_BUGS },
++
+   { "Qualcomm (for PhiComm)", 0x05c6, "C230w (MTP)",
+       0x9039, DEVICE_FLAGS_ANDROID_BUGS },
+ 
+@@ -1221,6 +1222,9 @@
+   // Reported by Thomas Bretthauer
+   { "Fujitsu, Ltd", 0x04c5, "STYLISTIC M532", 0x133b,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/feature-requests/137/ */
++  { "Fujitsu, Ltd", 0x04c5, "F02-E", 0x1378,
++      DEVICE_FLAGS_ANDROID_BUGS },
+ 
+   /*
+    * Palm device userland program named Pocket Tunes
+@@ -1247,6 +1251,9 @@
+   // Reported by anonymous SourceForge user
+   { "Medion", 0x066f, "MD8333 (ID2)", 0x8588,
+     DEVICE_FLAG_UNLOAD_DRIVER | DEVICE_FLAG_BROKEN_MTPGETOBJPROPLIST },
++  /* https://sourceforge.net/p/libmtp/bugs/1359/ */
++  { "Verizon", 0x0408, "Ellipsis 7", 0x3899,
++    DEVICE_FLAGS_ANDROID_BUGS },
+   // The vendor ID is "Quanta Computer, Inc."
+   // same as Olivetti Olipad 110
+   // Guessing on device flags
+@@ -1403,6 +1410,9 @@
+       DEVICE_FLAGS_ANDROID_BUGS },
+   { "LG Electronics Inc.", 0x1004, "LG2 Optimus", 0x6225,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1386/ */
++  { "LG Electronics Inc.", 0x1004, "LG VS950", 0x622a,
++      DEVICE_FLAGS_ANDROID_BUGS },
+   { "LG Electronics Inc.", 0x1004, "LG VS870", 0x6239,
+       DEVICE_FLAGS_ANDROID_BUGS },
+   /* https://sourceforge.net/p/libmtp/bugs/992/ */
+@@ -1410,6 +1420,8 @@
+       DEVICE_FLAGS_ANDROID_BUGS },
+   { "LG Electronics Inc.", 0x1004, "VK810", 0x6265,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  { "LG Electronics Inc.", 0x1004, "G3", 0x627f,
++      DEVICE_FLAGS_ANDROID_BUGS },
+   /* https://sourceforge.net/p/libmtp/support-requests/134/ */
+   { "LG Electronics Inc.", 0x1004, "G3 (VS985)", 0x626e,
+       DEVICE_FLAGS_ANDROID_BUGS },
+@@ -1723,8 +1735,12 @@
+       DEVICE_FLAG_NONE },
+   { "SONY", 0x0fce, "Xperia M2 MTP", 0x01aa,
+       DEVICE_FLAG_NONE },
++  { "SONY", 0x0fce, "Xperia M2 Dual MTP", 0x01ab,
++      DEVICE_FLAG_NONE },
+   { "SONY", 0x0fce, "Xperia Z2 MTP", 0x01af,
+       DEVICE_FLAG_NONE },
++  { "SONY", 0x0fce, "Xperia Z2 Tablet MTP", 0x01b1,
++      DEVICE_FLAGS_ANDROID_BUGS },
+   { "SONY", 0x0fce, "Xperia Z Ultra MTP", 0x01b6,
+       DEVICE_FLAGS_ANDROID_BUGS },
+   { "SONY", 0x0fce, "Xperia Z3 MTP", 0x01ba,
+@@ -1733,6 +1749,10 @@
+       DEVICE_FLAG_NONE },
+   { "SONY", 0x0fce, "Xperia E3 MTP", 0x01bc,
+       DEVICE_FLAG_NONE },
++  { "SONY", 0x0fce, "XPeria Z3+ MTP", 0x01c9,
++      DEVICE_FLAG_NONE },
++  { "SONY", 0x0fce, "XPeria E4g MTP", 0x01cb,
++      DEVICE_FLAG_NONE },
+ 
+ 
+   /*
+@@ -1788,6 +1808,8 @@
+       DEVICE_FLAG_NONE },
+   { "SONY", 0x0fce, "Xperia M MTP+CDROM", 0x419b,
+       DEVICE_FLAG_NONE },
++  { "SONY", 0x0fce, "Xperia Z Ultra MTP+CDROM (ID3)", 0x419c,
++      DEVICE_FLAG_NONE },
+   { "SONY", 0x0fce, "Xperia Z1 MTP+CDROM", 0x419e,
+       DEVICE_FLAG_NONE },
+   { "SONY", 0x0fce, "Xperia C MTP+CDROM", 0x41a3,
+@@ -1796,10 +1818,20 @@
+       DEVICE_FLAG_NONE },
+   { "SONY", 0x0fce, "Xperia M2 MTP+CDROM", 0x41aa,
+       DEVICE_FLAG_NONE },
++  { "SONY", 0x0fce, "Xperia M2 Dual MTP+CDROM", 0x41ab,
++      DEVICE_FLAG_NONE },
+   { "SONY", 0x0fce, "Xperia Z2 MTP+CDROM", 0x41af,
+       DEVICE_FLAG_NONE },
+   { "SONY", 0x0fce, "Xperia Z3 MTP+CDROM", 0x41ba,
+       DEVICE_FLAG_NONE },
++  { "SONY", 0x0fce, "Xperia Z3 Compact MTP+CDROM", 0x41bb,
++      DEVICE_FLAG_NONE },
++  { "SONY", 0x0fce, "Xperia E3 MTP+CDROM", 0x01bc,
++      DEVICE_FLAG_NONE },
++  { "SONY", 0x0fce, "XPeria Z3+ MTP+CDROM", 0x41c9,
++      DEVICE_FLAG_NONE },
++  { "SONY", 0x0fce, "XPeria E4g MTP+CDROM", 0x41cb,
++      DEVICE_FLAG_NONE },
+ 
+   /*
+    * MTP+ADB personalities of MTP devices (see above)
+@@ -1888,6 +1920,8 @@
+       DEVICE_FLAG_NONE },
+   { "SONY", 0x0fce, "Xperia M2 MTP+ADB", 0x51aa,
+       DEVICE_FLAG_NONE },
++  { "SONY", 0x0fce, "Xperia M2 Dual MTP+ADB", 0x51ab,
++      DEVICE_FLAG_NONE },
+   { "SONY", 0x0fce, "Xperia Z2 MTP+ADB", 0x51af,
+       DEVICE_FLAG_NONE },
+   { "SONY", 0x0fce, "Xperia Z Ultra MTP+ADB", 0x51b6,
+@@ -1898,6 +1932,10 @@
+       DEVICE_FLAG_NONE },
+   { "SONY", 0x0fce, "Xperia E3 MTP+ADB", 0x51bc,
+       DEVICE_FLAG_NONE },
++  { "SONY", 0x0fce, "XPeria Z3+ MTP+ADB", 0x51c9,
++      DEVICE_FLAG_NONE },
++  { "SONY", 0x0fce,  "XPeria E4g MTP+ADB", 0x51cb,
++      DEVICE_FLAG_NONE },
+ 
+   /*
+    * MTP+UMS modes
+@@ -1936,6 +1974,9 @@
+    * Motorola
+    * Assume DEVICE_FLAG_BROKEN_SET_OBJECT_PROPLIST on all of these.
+    */
++  /* https://sourceforge.net/p/libmtp/feature-requests/136/ */
++  { "Motorola", 0x22b8, "XT1524 (MTP)", 0x002e,
++      DEVICE_FLAGS_ANDROID_BUGS },
+   // Reported by David Boyd <tiggrdave@users.sourceforge.net>
+   { "Motorola", 0x22b8, "V3m/V750 verizon", 0x2a65,
+       DEVICE_FLAG_BROKEN_SET_OBJECT_PROPLIST |
+@@ -1952,6 +1993,9 @@
+       DEVICE_FLAGS_ANDROID_BUGS },
+   { "Motorola", 0x22b8, "Moto X (XT1058)", 0x2e63,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1323/ */
++  { "Motorola", 0x22b8, "Moto X (XT1080)", 0x2e66,
++      DEVICE_FLAGS_ANDROID_BUGS },
+   { "Motorola", 0x22b8, "Droid Maxx (XT1080)", 0x2e67,
+       DEVICE_FLAGS_ANDROID_BUGS },
+   { "Motorola", 0x22b8, "Droid Ultra", 0x2e68,
+@@ -2345,6 +2389,14 @@
+   /* https://sourceforge.net/p/libmtp/bugs/1244/ */
+   { "Asus", 0x0b05, "MemoPad 8 ME181 CX (MTP)", 0x5561,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1406/ */
++  { "Asus", 0x0b05, "Zenfone 2 (MTP)", 0x5600,
++      DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1364/ */
++  { "Asus", 0x0b05, "Z00AD (MTP)", 0x5601,
++      DEVICE_FLAGS_ANDROID_BUGS },
++  { "Asus", 0x0b05, "TX201LA (MTP)", 0x561f,
++      DEVICE_FLAGS_ANDROID_BUGS },
+   /* https://sourceforge.net/p/libmtp/bugs/1271/ */
+   { "Asus", 0x0b05, "ZenFone 4 (MTP)", 0x580f,
+       DEVICE_FLAGS_ANDROID_BUGS },
+@@ -2354,9 +2406,20 @@
+   /* https://sourceforge.net/p/libmtp/bugs/1258/ */
+   { "Asus", 0x0b05, "A450CG (MTP)", 0x5a0f,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1350/ */
++  { "Asus", 0x0b05, "Zenfone 2 ZE550ML (MTP)", 0x5f02,
++      DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1364/ */
++  { "Asus", 0x0b05, "Zenfone 2 ZE551ML (MTP)", 0x5f03,
++      DEVICE_FLAGS_ANDROID_BUGS },
+   /* https://sourceforge.net/p/libmtp/bugs/1232/ */
+   { "Asus", 0x0b05, "MemoPad 7 (ME572CL)", 0x7772,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1351/ */
++  { "Asus", 0x0b05, "Fonepad 7 (FE375CXG)", 0x7773,
++      DEVICE_FLAGS_ANDROID_BUGS },
++  { "Asus", 0x0b05, "ZenFone 5 A500KL (MTP)", 0x7780,
++      DEVICE_FLAGS_ANDROID_BUGS },
+   /* https://sourceforge.net/p/libmtp/bugs/1247/ */
+   { "Asus", 0x0b05, "ZenFone 5 A500KL (MTP+ADB)", 0x7781,
+       DEVICE_FLAGS_ANDROID_BUGS },
+@@ -2365,6 +2428,12 @@
+   /*
+    * Lenovo
+    */
++  /* https://sourceforge.net/p/libmtp/support-requests/178/ */
++  { "Lenovo", 0x17ef, "P70-A", 0x0c02,
++      DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1415/ */
++  { "Lenovo", 0x17ef, "P70", 0x2008,
++      DEVICE_FLAGS_ANDROID_BUGS },
+   // Reported by Richard Körber <shredzone@users.sourceforge.net>
+   { "Lenovo", 0x17ef, "K1", 0x740a,
+       DEVICE_FLAGS_ANDROID_BUGS },
+@@ -2407,6 +2476,9 @@
+       DEVICE_FLAGS_ANDROID_BUGS },
+   { "Lenovo", 0x17ef, "Toga Tablet B6000-F", 0x76f2,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1122/ */
++  { "Lenovo", 0x17ef, "S930", 0x7718,
++      DEVICE_FLAGS_ANDROID_BUGS },
+   /* https://sourceforge.net/p/libmtp/bugs/1250/ */
+   { "Lenovo", 0x17ef, "A5500-F", 0x772b,
+       DEVICE_FLAGS_ANDROID_BUGS },
+@@ -2417,15 +2489,24 @@
+   /* https://sourceforge.net/p/libmtp/bugs/1155/ */
+   { "Lenovo", 0x17ef, "Yoga Tablet 10 B8000-H", 0x76ff,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /*  https://sourceforge.net/p/libmtp/bugs/1391/ */
++  { "Lenovo", 0x17ef, "A7600-F", 0x7731,
++      DEVICE_FLAGS_ANDROID_BUGS },
+   /* https://sourceforge.net/p/libmtp/bugs/1291/ */
+   { "Lenovo", 0x17ef, "A3500-F", 0x7737,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/support-requests/186/ */
++  { "Lenovo", 0x17ef, "Yoga Tablet 2 - 1050F", 0x77a4,
++      DEVICE_FLAGS_ANDROID_BUGS },
+   /* https://sourceforge.net/p/libmtp/support-requests/168/ */
+   { "Lenovo", 0x17ef, "Yoga Tablet 2 Pro", 0x77b1,
+       DEVICE_FLAGS_ANDROID_BUGS },
+   /* https://sourceforge.net/p/libmtp/feature-requests/125/ */
+   { "Lenovo", 0x17ef, "Vibe Z2", 0x77ea,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1360/ */
++  { "Lenovo", 0x17ef, "K3 Note", 0x7883,
++      DEVICE_FLAGS_ANDROID_BUGS },
+ 
+   /*
+    * Huawei
+@@ -2435,6 +2516,15 @@
+       DEVICE_FLAGS_ANDROID_BUGS },
+   { "Huawei", 0x12d1, "MTP device (ID2)", 0x1052,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1381/ */
++  { "Huawei", 0x12d1, "H60-L11", 0x1079,
++      DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1361/ */
++  { "Huawei", 0x12d1, "Ascend P8 ", 0x1082,
++      DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1418/ */
++  { "Huawei", 0x12d1, "Honor 3C ", 0x2012,
++      DEVICE_FLAGS_ANDROID_BUGS },
+   { "Huawei", 0x12d1, "Mediapad (mode 0)", 0x360f,
+       DEVICE_FLAGS_ANDROID_BUGS },
+   // Reported by Bearsh <bearsh@users.sourceforge.net>
+@@ -2452,6 +2542,8 @@
+   /* https://sourceforge.net/p/libmtp/bugs/672/ */
+   { "ZTE", 0x19d2, "Grand X In", 0x0343, DEVICE_FLAGS_ANDROID_BUGS },
+   { "ZTE", 0x19d2, "V985", 0x0383, DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1328/ */
++  { "ZTE", 0x19d2, "V5", 0xffce, DEVICE_FLAGS_ANDROID_BUGS },
+ 
+   /*
+    * HTC (High Tech Computer Corp)
+@@ -2459,6 +2551,12 @@
+    * Steven Eastland <grassmonk@users.sourceforge.net>
+    * Kevin Cheng <kache@users.sf.net>
+    */
++  /* https://sourceforge.net/p/libmtp/support-requests/181/ */
++  { "HTC", 0x0bb4, "HTC One M9 (MTP)", 0x040b,
++      DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1398/ */
++  { "HTC", 0x0bb4, "Spreadtrum SH57MYZ03342 (MTP)", 0x05e3,
++      DEVICE_FLAGS_ANDROID_BUGS },
+   /* reported by Mikkel Oscar Lyderik <mikkeloscar@gmail.com> */
+   { "HTC", 0x0bb4, "HTC Desire 510 (MTP+ADB)", 0x05fd,
+       DEVICE_FLAGS_ANDROID_BUGS },
+@@ -2545,6 +2643,9 @@
+   /* https://sourceforge.net/p/libmtp/bugs/1182/ */
+   { "HTC", 0x0bb4, "Desire 310 (MTP)", 0x0ec6,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1420/ */
++  { "HTC", 0x0bb4, "Desire 816G (MTP)", 0x0edb,
++      DEVICE_FLAGS_ANDROID_BUGS },
+   { "HTC", 0x0bb4, "HTC One (MTP+ADB+CDC)", 0x0f5f,
+       DEVICE_FLAGS_ANDROID_BUGS },
+   { "HTC", 0x0bb4, "HTC One (MTP+CDC)", 0x0f60,
+@@ -2658,6 +2759,9 @@
+       DEVICE_FLAGS_ANDROID_BUGS },
+   { "Amazon", 0x1949, "Kindle Fire (ID5)", 0x0012,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1353/ */
++  { "Amazon", 0x1949, "Kindle Fire HD6", 0x00f2,
++      DEVICE_FLAGS_ANDROID_BUGS },
+   { "Amazon", 0x1949, "Fire Phone", 0x0800,
+       DEVICE_FLAGS_ANDROID_BUGS },
+ 
+@@ -2677,6 +2781,9 @@
+       DEVICE_FLAGS_ANDROID_BUGS },
+   { "YiFang", 0x2207, "BQ Tesla", 0x0006,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1354/ */
++  { "Various", 0x2207, "Viewpia DR/bq Kepler Debugging", 0x0011,
++      DEVICE_FLAGS_ANDROID_BUGS },
+ 
+   /*
+    * Kobo
+@@ -2708,6 +2815,8 @@
+   { "Intel", 0x8087, "Foxconn iView i700", 0x0a15, DEVICE_FLAGS_ANDROID_BUGS },
+   /* https://sourceforge.net/p/libmtp/bugs/1237/ */
+   { "Intel", 0x8087, "Telcast Air 3G", 0x0a5e, DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1338/ */
++  { "Intel", 0x8087, "Chuwi vi8", 0x0a5f, DEVICE_FLAGS_ANDROID_BUGS },
+ 
+   /*
+    * Xiaomi
+@@ -2738,6 +2847,15 @@
+       DEVICE_FLAGS_ANDROID_BUGS },
+   { "Xiaomi", 0x2717, "Mi-2 (MTP)", 0xf003,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1397/ */
++  { "Xiaomi", 0x2717, "Mi-2s (id2) (MTP)", 0xff40,
++      DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1339/ */
++  { "Xiaomi", 0x2717, "Mi-2s (MTP)", 0xff48,
++      DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1402/ */
++  { "Xiaomi", 0x2717, "Redmi 2 (MTP)", 0xff60,
++      DEVICE_FLAGS_ANDROID_BUGS },
+ 
+   /*
+    * XO Learning Tablet
+@@ -2774,6 +2892,9 @@
+   /* https://sourceforge.net/p/libmtp/bugs/1304/ */
+   { "Alcatel", 0x1bbb, "OneTouch 5042D (MTP)", 0xa00e,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1401/ */
++  { "Alcatel", 0x1bbb, "OneTouch Idol 3 (MTP)", 0xaf2b,
++      DEVICE_FLAGS_ANDROID_BUGS },
+   /* https://sourceforge.net/p/libmtp/feature-requests/114/ */
+   { "Alcatel", 0x1bbb, "OneTouch 6034R", 0xf003,
+       DEVICE_FLAGS_ANDROID_BUGS },
+@@ -2782,8 +2903,12 @@
+    * Kyocera
+    */
+   { "Kyocera", 0x0482, "Rise", 0x0571, DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/feature-requests/134/ */
++  { "Kyocera", 0x0482, "Torque Model E6715", 0x0059a, DEVICE_FLAGS_ANDROID_BUGS },
+   /* https://sourceforge.net/p/libmtp/discussion/535190/thread/6270f5ce/ */
+   { "Kyocera", 0x0482, "KYL22", 0x0810, DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1345/ */
++  { "Kyocera", 0x0482, "DuraForce", 0x0979, DEVICE_FLAGS_ANDROID_BUGS },
+ 
+   /*
+    * HiSense
+@@ -2798,12 +2923,20 @@
+       DEVICE_FLAGS_ANDROID_BUGS },
+   { "Hewlett-Packard", 0x03f0, "Slate 7 2800", 0x5d1d,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/bugs/1366/ */
++  { "Hewlett-Packard", 0x03f0, "Slate 10 HD", 0x7e1d,
++      DEVICE_FLAGS_ANDROID_BUGS },
+ 
+   /*
+    * MediaTek Inc.
+    */
+   { "MediaTek Inc", 0x0e8d, "MT5xx and MT6xx SoCs", 0x0050,
+       DEVICE_FLAGS_ANDROID_BUGS },
++  { "MediaTek Inc", 0x0e8d, "MT65xx", 0x2008,
++      DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/feature-requests/79/ */
++  { "MediaTek Inc", 0x0e8d, "Elephone P8000", 0x201d,
++      DEVICE_FLAGS_ANDROID_BUGS },
+ 
+   /*
+    * Jolla
+@@ -2860,6 +2993,8 @@
+   { "Prestigio", 0x29e4, "5505 DUO ", 0x1103, DEVICE_FLAGS_ANDROID_BUGS },
+   /* https://sourceforge.net/p/libmtp/bugs/1243/ */
+   { "Prestigio", 0x29e4, "5504 DUO ", 0x1203, DEVICE_FLAGS_ANDROID_BUGS },
++  /* https://sourceforge.net/p/libmtp/feature-requests/141/ */
++  { "Prestigio", 0x29e4, "3405 DUO ", 0x3201, DEVICE_FLAGS_ANDROID_BUGS },
+ 
+   /* https://sourceforge.net/p/libmtp/bugs/1283/ */
+   { "Megafon", 0x201e, "MFLogin3T", 0x42ab, DEVICE_FLAGS_ANDROID_BUGS },
+@@ -2867,6 +3002,8 @@
+   /* https://sourceforge.net/p/libmtp/bugs/1287/ */
+   { "Gensis", 0x040d, "GT-7305 ", 0x885c, DEVICE_FLAGS_ANDROID_BUGS },
+ 
++  /* https://sourceforge.net/p/libmtp/support-requests/182/ */
++  { "Oppo", 0x22d9, "Find 5", 0x2764, DEVICE_FLAGS_ANDROID_BUGS },
+   /* https://sourceforge.net/p/libmtp/bugs/1207/ */
+   { "Oppo", 0x22d9, "Find 7 (ID 1)", 0x2765, DEVICE_FLAGS_ANDROID_BUGS },
+   /* https://sourceforge.net/p/libmtp/bugs/1277/ */
+@@ -2916,6 +3053,14 @@
+   /* https://sourceforge.net/p/libmtp/bugs/1314/ */
+   { "BenQ", 0x1d45, "F5", 0x459d, DEVICE_FLAGS_ANDROID_BUGS },
+ 
++  /* https://sourceforge.net/p/libmtp/bugs/1362/ */
++  { "TomTom", 0x1390, "Rider 40", 0x5455, DEVICE_FLAGS_ANDROID_BUGS },
++
++  /* https://sourceforge.net/p/libmtp/feature-requests/135/. guessed android. */
++  { "OUYA", 0x2836, "Videogame Console", 0x0010, DEVICE_FLAGS_ANDROID_BUGS },
++
++  /* https://sourceforge.net/p/libmtp/bugs/1383/ */
++  { "BLU", 0x0e8d, "Studio HD", 0x2008, DEVICE_FLAGS_ANDROID_BUGS },
+   /*
+    * Other strange stuff.
+    */
diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index f57bd839ab..ca367929e0 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -783,6 +783,9 @@ password storage.")
     ;; "MIT" and PSF dual license
     (license x11)))
 
+(define-public python2-keyring
+  (package-with-python2 python-keyring))
+
 (define-public python-six
   (package
     (name "python-six")
@@ -3719,13 +3722,15 @@ computing.")
        `(#:tests? #f ,@(package-arguments ipython)))
       ;; Make sure we use custom python2-NAME packages.
       ;; FIXME: add pyreadline once available.
+      (propagated-inputs
+       `(("python2-terminado" ,python2-terminado)
+         ,@(alist-delete "python-terminado"
+                         (package-propagated-inputs ipython))))
       (inputs
        `(("python2-mock" ,python2-mock)
          ("python2-matplotlib" ,python2-matplotlib)
-         ("python2-terminado" ,python2-terminado)
-         ,@(alist-delete "python-terminado"
-                         (alist-delete "python-matplotlib"
-                                       (package-inputs ipython))))))))
+         ,@(alist-delete "python-matplotlib"
+                         (package-inputs ipython)))))))
 
 (define-public python-isodate
   (package
@@ -4432,6 +4437,9 @@ PEP 8.")
       "Pyflakes statically checks Python source code for common errors.")
     (license license:expat)))
 
+(define-public python2-pyflakes
+  (package-with-python2 python-pyflakes))
+
 (define-public python-mccabe
   (package
     (name "python-mccabe")
@@ -4495,7 +4503,7 @@ complexity of Python source code.")
             "0sbpq6pqm1i9wqi41mlfrsc5rk92jv4mskvlyxmnhlbdnc80ma1z"))))))
 
 (define-public python2-pyflakes-0.8.1
-  (package-with-python2 python-pyflakes))
+  (package-with-python2 python-pyflakes-0.8.1))
 
 (define-public python-flake8
   (package
@@ -4768,3 +4776,172 @@ reading and writing MessagePack data.")
 
 (define-public python2-msgpack
   (package-with-python2 python-msgpack))
+
+(define-public python-netaddr
+  (package
+    (name "python-netaddr")
+    (version "0.7.18")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "https://pypi.python.org/packages/source/n/netaddr/netaddr-"
+             version
+             ".tar.gz"))
+       (sha256
+         (base32
+          "06dxjlbcicq7q3vqy8agq11ra01kvvd47j4mk6dmghjsyzyckxd1"))))
+    (build-system python-build-system)
+    (arguments `(#:tests? #f)) ;; No tests.
+    (inputs
+      `(("python-setuptools" ,python-setuptools)))
+    (home-page "https://github.com/drkjam/netaddr/")
+    (synopsis "Pythonic manipulation of  network addresses")
+    (description
+      "A Python library for representing and manipulating IPv4, IPv6, CIDR, EUI
+and MAC network addresses.")
+    (license bsd-3)))
+
+(define-public python2-netaddr
+  (package-with-python2 python-netaddr))
+
+(define-public python-wrapt
+  (package
+    (name "python-wrapt")
+    (version "1.10.5")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (string-append
+               "https://pypi.python.org/packages/source/w/wrapt/wrapt-"
+               version
+               ".tar.gz"))
+        (sha256
+          (base32
+            "0cq8rlpzkxzk48b50yrfhzn1d1hrq4gjcdqlrgq4v5palgiv9jwr"))))
+    (build-system python-build-system)
+    (arguments
+     ;; Tests are not included in the tarball, they are only available in the
+     ;; git repository.
+     `(#:tests? #f))
+    (inputs
+      `(("python-setuptools" ,python-setuptools)))
+    (home-page "https://github.com/GrahamDumpleton/wrapt")
+    (synopsis "Module for decorators, wrappers and monkey patching")
+    (description
+      "The aim of the wrapt module is to provide a transparent object proxy for
+  Python, which can be used as the basis for the construction of function
+  wrappers and decorator functions.")
+    (license bsd-2)))
+
+(define-public python2-wrapt
+  (package-with-python2 python-wrapt))
+
+(define-public python-iso8601
+  (package
+  (name "python-iso8601")
+  (version "0.1.10")
+  (source
+    (origin
+      (method url-fetch)
+      (uri (string-append
+             "https://pypi.python.org/packages/source/i/iso8601/iso8601-"
+             version
+             ".tar.gz"))
+      (sha256
+        (base32
+          "1qf01afxh7j4gja71vxv345if8avg6nnm0ry0zsk6j3030xgy4p7"))))
+  (build-system python-build-system)
+  (inputs
+    `(("python-setuptools" ,python-setuptools)))
+  (home-page "https://bitbucket.org/micktwomey/pyiso8601")
+  (synopsis "Module to parse ISO 8601 dates")
+  (description
+    "This module parses the most common forms of ISO 8601 date strings (e.g.
+@code{2007-01-14T20:34:22+00:00}) into @code{datetime} objects.")
+  (license license:expat)))
+
+(define-public python2-iso8601
+  (package-with-python2 python-iso8601))
+
+(define-public python-monotonic
+  (package
+    (name "python-monotonic")
+    (version "0.3")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (string-append
+               "https://pypi.python.org/packages/source/m/monotonic/monotonic-"
+               version
+               ".tar.gz"))
+        (sha256
+          (base32
+            "0yz0bcbwx8r2c01czzfpbrxddynxyk9k95jj8h6sgcb7xmfvl998"))))
+    (build-system python-build-system)
+    (inputs
+      `(("python-setuptools" ,python-setuptools)))
+    (home-page "https://github.com/atdt/monotonic")
+    (synopsis "Implementation of time.monotonic() for Python 2 & < 3.3")
+    (description
+      "This module provides a monotonic() function which returns the value (in
+fractional seconds) of a clock which never goes backwards.")
+    (license asl2.0)))
+
+(define-public python2-monotonic
+  (package-with-python2 python-monotonic))
+
+(define-public python-webob
+  (package
+    (name "python-webob")
+    (version "1.5.0b0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "https://pypi.python.org/packages/source/W/WebOb/WebOb-"
+             version ".tar.gz"))
+       (sha256
+        (base32
+         "140b3iczclk1j0405rvw5gxshqfkhcc8254fj520z3m23cwbql4a"))))
+    (build-system python-build-system)
+    (inputs
+      `(("python-nose" ,python-nose)
+        ("python-setuptools" ,python-setuptools)))
+    (home-page "http://webob.org/")
+    (synopsis "WSGI request and response object")
+    (description
+      "WebOb provides wrappers around the WSGI request environment, and an
+object to help create WSGI responses.")
+    (license license:expat)))
+
+(define-public python2-webob
+  (package-with-python2 python-webob))
+
+(define-public python-prettytable
+  (package
+    (name "python-prettytable")
+    (version "0.7.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "https://pypi.python.org/packages/source/P/PrettyTable/"
+             "prettytable-" version ".tar.bz2"))
+       (sha256
+        (base32
+         "0diwsicwmiq2cpzpxri7cyl5fmsvicafw6nfqf6p6p322dji2g45"))))
+    (build-system python-build-system)
+    (inputs
+      `(("python-setuptools" ,python-setuptools)))
+    (home-page "http://code.google.com/p/prettytable/")
+    (synopsis "Display tabular data in an ASCII table format")
+    (description
+      "A library designed to represent tabular data in visually appealing ASCII
+tables.  PrettyTable allows for selection of which columns are to be printed,
+independent alignment of columns (left or right justified or centred) and
+printing of sub-tables by specifying a row range.")
+    (license bsd-3)))
+
+(define-public python2-prettytable
+  (package-with-python2 python-prettytable))
diff --git a/gnu/packages/ruby.scm b/gnu/packages/ruby.scm
index ee0acc8639..c906361971 100644
--- a/gnu/packages/ruby.scm
+++ b/gnu/packages/ruby.scm
@@ -421,6 +421,30 @@ Java Native Interface.")
     (home-page "http://www.artonx.org/collabo/backyard/?RubyJavaBridge")
     (license license:lgpl2.1+)))
 
+(define-public ruby-log4r
+  (package
+    (name "ruby-log4r")
+    (version "1.1.10")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (rubygems-uri "log4r" version))
+        (sha256
+          (base32
+            "0ri90q0frfmigkirqv5ihyrj59xm8pq5zcmf156cbdv4r4l2jicv"))))
+    (build-system ruby-build-system)
+    (arguments
+     '(#:tests? #f)) ; no Rakefile in gem
+    (synopsis "Flexible logging library for Ruby")
+    (description "Comprehensive and flexible logging library written
+in Ruby for use in Ruby programs.  It features a hierarchical logging
+system of any number of levels, custom level names, logger
+inheritance, multiple output destinations per log event, execution
+tracing, custom formatting, thread safteyness, XML and YAML
+configuration, and more.")
+     (home-page "http://log4r.rubyforge.org/")
+     (license license:bsd-3)))
+
 (define-public ruby-atoulme-antwrap
   (package
     (name "ruby-atoulme-antwrap")
@@ -465,6 +489,34 @@ extensions.")
     (home-page "http://codeforpeople.com/lib/ruby/orderedhash/")
     (license license:public-domain)))
 
+(define-public ruby-libxml
+  (package
+    (name "ruby-libxml")
+    (version "2.8.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (rubygems-uri "libxml-ruby" version))
+       (sha256
+        (base32
+         "1dhjqp4r9vkdp00l6h1cj8qfndzxlhlxk6b9g0w4v55gz857ilhb"))))
+    (build-system ruby-build-system)
+    (inputs
+     `(("zlib" ,zlib)
+       ("libxml2" ,libxml2)))
+    (arguments
+     '(#:tests? #f ; test suite hangs for unknown reason
+       #:gem-flags
+       (list "--"
+             (string-append "--with-xml2-include="
+                            (assoc-ref %build-inputs "libxml2")
+                            "/include/libxml2" ))))
+    (synopsis "Ruby bindings for GNOME Libxml2")
+    (description "The Libxml-Ruby project provides Ruby language bindings for
+the GNOME Libxml2 XML toolkit.")
+    (home-page "http://xml4r.github.com/libxml-ruby")
+    (license license:expat)))
+
 (define-public ruby-xml-simple
   (package
     (name "ruby-xml-simple")
@@ -505,6 +557,152 @@ interfaces.")
     (home-page "http://whatisthor.com/")
     (license license:expat)))
 
+(define-public ruby-lumberjack
+  (package
+    (name "ruby-lumberjack")
+    (version "1.0.9")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "lumberjack" version))
+              (sha256
+               (base32
+                "162frm2bwy58pj8ccsdqa4a6i0csrhb9h5l3inhkl1ivgfc8814l"))))
+    (build-system ruby-build-system)
+    (native-inputs
+     `(("ruby-rspec" ,ruby-rspec)))
+    (synopsis "Logging utility library for Ruby")
+    (description "Lumberjack is a simple logging utility that can be a drop in
+replacement for Logger or ActiveSupport::BufferedLogger.  It provides support
+for automatically rolling log files even with multiple processes writing the
+same log file.")
+    (home-page "http://github.com/bdurand/lumberjack")
+    (license license:expat)))
+
+(define-public ruby-nenv
+  (package
+    (name "ruby-nenv")
+    (version "0.2.0")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "nenv" version))
+              (sha256
+               (base32
+                "152wxwri0afwgnxdf93gi6wjl9rr5z7vwp8ln0gpa3rddbfc27s6"))))
+    (build-system ruby-build-system)
+    (arguments
+     `(#:tests? #f)) ; no tests included
+    (native-inputs
+     `(("ruby-rspec" ,ruby-rspec)
+       ("bundler" ,bundler)))
+    (synopsis "Ruby interface for modifying the environment")
+    (description "Nenv provides a convenient wrapper for Ruby's ENV to modify
+and inspect the environment.")
+    (home-page "https://github.com/e2/nenv")
+    (license license:expat)))
+
+(define-public ruby-shellany
+  (package
+    (name "ruby-shellany")
+    (version "0.0.1")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "shellany" version))
+              (sha256
+               (base32
+                "1ryyzrj1kxmnpdzhlv4ys3dnl2r5r3d2rs2jwzbnd1v96a8pl4hf"))))
+    (build-system ruby-build-system)
+    (arguments
+     `(#:test-target "default"
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'fix-version-test
+          (lambda _
+            (substitute* "spec/shellany_spec.rb"
+              (("^RSpec") "require \"shellany\"\nRSpec"))
+            #t)))))
+    (native-inputs
+     `(("ruby-rspec" ,ruby-rspec)
+       ("ruby-nenv" ,ruby-nenv)
+       ("bundler" ,bundler)))
+    (synopsis "Capture command output")
+    (description "Shellany is a Ruby library providing functions to capture
+the output produced by running shell commands.")
+    (home-page "https://rubygems.org/gems/shellany")
+    (license license:expat)))
+
+(define-public ruby-notiffany
+  (package
+    (name "ruby-notiffany")
+    (version "0.0.7")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "notiffany" version))
+              (sha256
+               (base32
+                "1v5x1w59qq85r6dpv3y9ga34dfd7hka1qxyiykaw7gm0i6kggbhi"))))
+    (build-system ruby-build-system)
+    ;; Tests are not included in the gem.
+    (arguments `(#:tests? #f))
+    (propagated-inputs
+     `(("ruby-shellany" ,ruby-shellany)
+       ("ruby-nenv" ,ruby-nenv)))
+    (native-inputs
+     `(("bundler" ,bundler)))
+    (synopsis "Wrapper libray for notification libraries")
+    (description "Notiffany is a Ruby wrapper libray for notification
+libraries such as Libnotify.")
+    (home-page "https://github.com/guard/notiffany")
+    (license license:expat)))
+
+(define-public ruby-formatador
+  (package
+    (name "ruby-formatador")
+    (version "0.2.5")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "formatador" version))
+              (sha256
+               (base32
+                "1gc26phrwlmlqrmz4bagq1wd5b7g64avpx0ghxr9xdxcvmlii0l0"))))
+    (build-system ruby-build-system)
+    ;; Circular dependency: Tests require ruby-shindo, which requires
+    ;; ruby-formatador at runtime.
+    (arguments `(#:tests? #f))
+    (synopsis "Ruby library to format text on stdout")
+    (description "Formatador is a Ruby library to format text printed to the
+standard output stream.")
+    (home-page "http://github.com/geemus/formatador")
+    (license license:expat)))
+
+(define-public ruby-shindo
+  (package
+    (name "ruby-shindo")
+    (version "0.3.8")
+    (source (origin
+              (method url-fetch)
+              (uri (rubygems-uri "shindo" version))
+              (sha256
+               (base32
+                "0s8v1jbz8i0jh92f2fgxb3p51l1azrpkc8nv4mhrqy4vndpvd7wq"))))
+    (build-system ruby-build-system)
+    (arguments
+     `(#:test-target "shindo_tests"
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'fix-tests
+          (lambda _
+            (substitute* "Rakefile"
+              (("system \"shindo") "system \"./bin/shindo")
+              ;; This test doesn't work, so we disable it.
+              (("fail \"The build_error test should fail") "#"))
+            #t)))))
+    (propagated-inputs
+     `(("ruby-formatador" ,ruby-formatador)))
+    (synopsis "Simple depth first Ruby testing")
+    (description "Shindo is a simple depth first testing library for Ruby.")
+    (home-page "https://github.com/geemus/shindo")
+    (license license:expat)))
+
 (define-public ruby-useragent
   (package
     (name "ruby-useragent")
@@ -1124,3 +1322,96 @@ it unifies the API for web servers, web frameworks, and software in between
 into a single method call.")
     (home-page "http://rack.github.io/")
     (license license:expat)))
+
+(define-public ruby-docile
+  (package
+    (name "ruby-docile")
+    (version "1.1.5")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (rubygems-uri "docile" version))
+       (sha256
+        (base32
+         "0m8j31whq7bm5ljgmsrlfkiqvacrw6iz9wq10r3gwrv5785y8gjx"))))
+    (build-system ruby-build-system)
+    (arguments
+     '(#:tests? #f)) ; needs github-markup, among others
+    (synopsis "Ruby EDSL helper library")
+    (description "Docile is a Ruby library that provides an interface for
+creating embedded domain specific languages (EDSLs) that manipulate existing
+Ruby classes.")
+    (home-page "https://ms-ati.github.io/docile/")
+    (license license:expat)))
+
+(define-public ruby-gherkin3
+  (package
+    (name "ruby-gherkin3")
+    (version "3.1.1")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (rubygems-uri "gherkin3" version))
+        (sha256
+          (base32
+            "0xsyxhqa1gwcxzvsdy4didaiq5vam8ma3fbwbw2w60via4k6r1z9"))))
+    (build-system ruby-build-system)
+    (native-inputs
+     `(("bundler" ,bundler)))
+    (arguments
+     '(#:tests? #f)) ; needs simplecov, among others
+    (synopsis "Gherkin parser for Ruby")
+    (description "Gherkin 3 is a parser and compiler for the Gherkin language.
+It is intended to replace Gherkin 2 and be used by all Cucumber
+implementations to parse '.feature' files.")
+    (home-page "https://github.com/cucumber/gherkin3")
+    (license license:expat)))
+
+(define-public ruby-cucumber-core
+  (package
+    (name "ruby-cucumber-core")
+    (version "1.3.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (rubygems-uri "cucumber-core" version))
+       (sha256
+        (base32
+         "12mrzf0s96izpq0k10lahlkgwc4fjs0zfs344rh8r8h3w3jyppr8"))))
+    (build-system ruby-build-system)
+    (propagated-inputs
+     `(("ruby-gherkin3" ,ruby-gherkin3)))
+    (native-inputs
+     `(("bundler" ,bundler)))
+    (arguments
+     '(#:tests? #f)) ; needs simplecov, among others
+    (synopsis "Core library for the Cucumber BDD app")
+    (description "Cucumber is a tool for running automated tests
+written in plain language.  Because they're written in plain language,
+they can be read by anyone on your team.  Because they can be read by
+anyone, you can use them to help improve communication, collaboration
+and trust on your team.")
+    (home-page "https://cucumber.io/")
+    (license license:expat)))
+
+(define-public ruby-bio-logger
+  (package
+    (name "ruby-bio-logger")
+    (version "1.0.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (rubygems-uri "bio-logger" version))
+       (sha256
+        (base32
+         "02pylfy8nkdqzyzplvnhn1crzmfkj1zmi3qjhrj2f2imlxvycd28"))))
+    (build-system ruby-build-system)
+    (arguments
+     `(#:tests? #f)) ; rake errors, missing shoulda
+    (propagated-inputs
+     `(("ruby-log4r" ,ruby-log4r)))
+    (synopsis "Log4r wrapper for Ruby")
+    (description "Bio-logger is a wrapper around Log4r adding extra logging
+features such as filtering and fine grained logging.")
+    (home-page "https://github.com/pjotrp/bioruby-logger-plugin")
+    (license license:expat)))
diff --git a/gnu/packages/scheme.scm b/gnu/packages/scheme.scm
index 803b8d5a20..7465b1b58c 100644
--- a/gnu/packages/scheme.scm
+++ b/gnu/packages/scheme.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015 Taylan Ulrich Bayırlı/Kammer <taylanbayirli@gmail.com>
+;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -486,3 +487,179 @@ addition to support for lightweight VM-based threads, each VM itself runs in
 an isolated heap allowing multiple VMs to run simultaneously in different OS
 threads.")
     (license bsd-3)))
+
+;; FIXME: This function is temporarily in the engineering module and not
+;; exported.  It will be moved to an utility module for general use.  Once
+;; this is done, we should remove this definition.
+(define broken-tarball-fetch
+  (@@ (gnu packages engineering) broken-tarball-fetch))
+
+(define-public scmutils
+  (let ()
+    (define (system-suffix)
+      (cond
+       ((string-prefix? "x86_64" (or (%current-target-system)
+                                     (%current-system)))
+        "x86-64")
+       (else "i386")))
+
+    (package
+      (name "scmutils")
+      (version "20140302")
+      (source
+       (origin
+         (method broken-tarball-fetch)
+         (modules '((guix build utils)))
+         (snippet
+          ;; Remove binary code
+          '(delete-file-recursively "scmutils/mit-scheme"))
+         (file-name (string-append name "-" version ".tar.gz"))
+         (uri (string-append "http://groups.csail.mit.edu/mac/users/gjs/6946"
+                             "/scmutils-tarballs/" name "-" version
+                             "-x86-64-gnu-linux.tar.gz"))
+         (sha256
+          (base32 "10cnbm7nh78m5mrl1di85s29gny81jb1am9zd9f9yx725xb6dnfg"))))
+      (build-system gnu-build-system)
+      (inputs
+       `(("mit-scheme" ,mit-scheme)
+         ("emacs" ,emacs-no-x)))
+      (arguments
+       `(#:tests? #f ;; no tests-suite
+         #:modules ((guix build gnu-build-system)
+                    (guix build utils)
+                    (guix build emacs-utils))
+         #:imported-modules (,@%gnu-build-system-modules
+                             (guix build emacs-utils))
+         #:phases
+         (modify-phases %standard-phases
+           (replace 'configure
+                    ;; No standard build procedure is used. We set the correct
+                    ;; runtime path in the custom build system.
+                    (lambda* (#:key outputs #:allow-other-keys)
+                      (let ((out (assoc-ref outputs "out")))
+                        ;; Required to find .bci files at runtime.
+                        (with-directory-excursion "scmutils"
+                          (rename-file "src" "scmutils"))
+                        (substitute* "scmutils/scmutils/load.scm"
+                          (("/usr/local/scmutils/")
+                           (string-append out "/lib/mit-scheme-"
+                                          ,(system-suffix) "/")))
+                        #t)))
+           (replace 'build
+                    ;; Compile the code and build a band.
+                    (lambda* (#:key outputs #:allow-other-keys)
+                      (let* ((out (assoc-ref outputs "out"))
+                             (make-img (string-append
+                                        "echo '(load \"load\") "
+                                        "(disk-save \"edwin-mechanics.com\")'"
+                                        "| mit-scheme")))
+                        (with-directory-excursion "scmutils/scmutils"
+                          (and (zero? (system "mit-scheme < compile.scm"))
+                               (zero? (system make-img)))))))
+           (add-before 'install 'fix-directory-names
+                       ;; Correct directory names in the startup script.
+                       (lambda* (#:key inputs outputs #:allow-other-keys)
+                         (let* ((out (assoc-ref outputs "out"))
+                                (scm-root (assoc-ref inputs "mit-scheme")))
+                           (substitute* "bin/mechanics"
+                             (("ROOT=\"\\$\\{SCMUTILS_ROOT:-/.*\\}\"")
+                              (string-append
+                               "ROOT=\"${SCMUTILS_ROOT:-" scm-root "}\"\n"
+                               "LIB=\"${ROOT}/lib/mit-scheme-"
+                               ,(system-suffix) ":"
+                               out "/lib/mit-scheme-" ,(system-suffix) "\""))
+                             (("EDWIN_INFO_DIRECTORY=.*\n") "")
+                             (("SCHEME=.*\n")
+                              (string-append "SCHEME=\"${ROOT}/bin/scheme "
+                                             "--library ${LIB}\"\n"))
+                             (("export EDWIN_INFO_DIRECTORY") ""))
+                           #t)))
+           (add-before 'install 'emacs-tags
+                       ;; Generate Emacs's tags for easy reference to source
+                       ;; code.
+                       (lambda* (#:key inputs outputs #:allow-other-keys)
+                         (with-directory-excursion "scmutils/scmutils"
+                           (zero? (apply system* "etags"
+                                         (find-files "." "\\.scm"))))))
+           (replace 'install
+                    ;; Copy files to the store.
+                    (lambda* (#:key outputs #:allow-other-keys)
+                      (define* (copy-files-to-directory files dir
+                                                        #:optional (delete? #f))
+                        (for-each (lambda (f)
+                                    (copy-file f (string-append dir "/" f))
+                                    (when delete? (delete-file f)))
+                                  files))
+
+                      (let* ((out (assoc-ref outputs "out"))
+                             (bin (string-append out "/bin"))
+                             (doc (string-append out "/share/doc/"
+                                                 ,name "-" ,version))
+                             (lib (string-append out "/lib/mit-scheme-"
+                                                 ,(system-suffix)
+                                                 "/scmutils")))
+                        (for-each mkdir-p (list lib doc bin))
+                        (with-directory-excursion "scmutils/scmutils"
+                          (copy-files-to-directory '("COPYING" "LICENSE")
+                                                   doc #t)
+                          (for-each delete-file (find-files "." "\\.bin"))
+                          (copy-files-to-directory '("edwin-mechanics.com")
+                                                   (string-append lib "/..") #t)
+                          (copy-recursively "." lib))
+                        (with-directory-excursion "bin"
+                          (copy-files-to-directory (find-files ".") bin))
+                        (with-directory-excursion "scmutils/manual"
+                          (copy-files-to-directory (find-files ".") doc))
+                        #t)))
+           (add-after 'install 'emacs-helpers
+                      ;; Add convenience Emacs commands to easily load the
+                      ;; Scmutils band in an MIT-Scheme buffer inside of Emacs
+                      ;; and to easily load code tags.
+                      (lambda* (#:key inputs outputs #:allow-other-keys)
+                        (let* ((out (assoc-ref outputs "out"))
+                               (mit-root (assoc-ref inputs "mit-scheme"))
+                               (emacs-lisp-dir
+                                (string-append out "/share/emacs/site-lisp"
+                                               "/guix.d/" ,name "-" ,version))
+                               (el-file (string-append emacs-lisp-dir
+                                                       "/scmutils.el"))
+                               (lib-relative-path
+                                (string-append "/lib/mit-scheme-"
+                                               ,(system-suffix))))
+                          (mkdir-p emacs-lisp-dir)
+                          (call-with-output-file el-file
+                            (lambda (p)
+                              (format p
+                                      ";;;###autoload
+(defun scmutils-load ()
+  (interactive)
+  (require 'xscheme)
+  (let ((mit-root \"~a\")
+    (scmutils \"~a\"))
+    (run-scheme
+     (concat mit-root \"/bin/scheme --library \"
+          mit-root \"~a:\" scmutils \"~a\"
+          \" --band edwin-mechanics.com\"
+          \" --emacs\"))))
+
+;;;###autoload
+(defun scmutils-load-tags ()
+  (interactive)
+  (let ((scmutils \"~a\"))
+    (visit-tags-table (concat scmutils \"/TAGS\"))))
+"
+                                      mit-root out
+                                      lib-relative-path
+                                      lib-relative-path
+                                      (string-append out lib-relative-path
+                                                     "/scmutils"))))
+                          (emacs-byte-compile-directory (dirname el-file))
+                          #t))))))
+      (home-page
+       "http://groups.csail.mit.edu/mac/users/gjs/6946/linux-install.htm")
+      (synopsis "Scmutils library for MIT Scheme")
+      (description "The Scmutils system is an integrated library of
+procedures, embedded in the programming language Scheme, and intended to
+support teaching and research in mathematical physics and electrical
+engineering.")
+      (license gpl2+))))
diff --git a/gnu/packages/statistics.scm b/gnu/packages/statistics.scm
index 2e89fa9f03..cbcef49153 100644
--- a/gnu/packages/statistics.scm
+++ b/gnu/packages/statistics.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2015 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2015 Vicente Vera Parra <vicentemvp@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -140,8 +141,7 @@ available, greatly increasing its breadth and scope.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "mirror://cran/src/contrib/colorspace_"
-                           version ".tar.gz"))
+       (uri (cran-uri "colorspace" version))
        (sha256
         (base32 "0y8n4ljwhbdvkysdwgqzcnpv107pb3px1jip3k6svv86p72nacds"))))
     (build-system r-build-system)
@@ -161,8 +161,7 @@ colors are provided.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "mirror://cran/src/contrib/dichromat_"
-                           version ".tar.gz"))
+       (uri (cran-uri "dichromat" version))
        (sha256
         (base32 "1l8db1nk29ccqg3mkbafvfiw0775iq4gapysf88xq2zp6spiw59i"))))
     (build-system r-build-system)
@@ -180,8 +179,7 @@ effects of different types of color-blindness.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "mirror://cran/src/contrib/digest_"
-                           version ".tar.gz"))
+       (uri (cran-uri "digest" version))
        (sha256
         (base32 "0m9grqv67hhf51lz10whymhw0g0d98466ka694kya5x95hn44qih"))))
     (build-system r-build-system)
@@ -206,8 +204,7 @@ OpenSSL should be used.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "mirror://cran/src/contrib/gtable_"
-                           version ".tar.gz"))
+       (uri (cran-uri "gtable" version))
        (sha256
         (base32 "0k9hfj6r5y238gqh92s3cbdn34biczx3zfh79ix5xq0c5vkai2xh"))))
     (build-system r-build-system)
@@ -225,8 +222,7 @@ OpenSSL should be used.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "mirror://cran/src/contrib/labeling_"
-                           version ".tar.gz"))
+       (uri (cran-uri "labeling" version))
        (sha256
         (base32 "13sk7zrrrzry6ky1bp8mmnzcl9jhvkig8j4id9nny7z993mnk00d"))))
     (build-system r-build-system)
@@ -243,8 +239,7 @@ algorithms.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "mirror://cran/src/contrib/magrittr_"
-                           version ".tar.gz"))
+       (uri (cran-uri "magrittr" version))
        (sha256
         (base32 "1s1ar6rag8m277qcqmdp02gn4awn9bdj9ax0r8s32i59mm1mki05"))))
     (build-system r-build-system)
@@ -265,8 +260,7 @@ see package vignette.  To quote Rene Magritte, \"Ceci n'est pas un pipe.\"")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "mirror://cran/src/contrib/munsell_"
-                           version ".tar.gz"))
+       (uri (cran-uri "munsell" version))
        (sha256
         (base32 "1bi5yi0i80778bbzx2rm4f0glpc34kvh24pwwfhm4v32izsqgrw4"))))
     (build-system r-build-system)
@@ -286,8 +280,7 @@ Munsell colour system.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "mirror://cran/src/contrib/Rcpp_"
-                           version ".tar.gz"))
+       (uri (cran-uri "Rcpp" version))
        (sha256
         (base32 "182109z0yc1snqgd833ssl2cix6cbq83bcxmy5344b15ym820y38"))))
     (build-system r-build-system)
@@ -311,8 +304,7 @@ and Francois (2011, JSS), and the book by Eddelbuettel (2013, Springer); see
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "mirror://cran/src/contrib/plyr_"
-                           version ".tar.gz"))
+       (uri (cran-uri "plyr" version))
        (sha256
         (base32 "06v4zxawpjz37rp2q2ii5q43g664z9s29j4ydn0cz3crn7lzl6pk"))))
     (build-system r-build-system)
@@ -334,7 +326,7 @@ panels or collapse high-dimensional arrays to simpler summary statistics.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "mirror://cran/src/contrib/proto_" version ".tar.gz"))
+       (uri (cran-uri "proto" version))
        (sha256
         (base32 "03mvzi529y6kjcp9bkpk7zlgpcakb3iz73hca6rpjy14pyzl3nfh"))))
     (build-system r-build-system)
@@ -352,8 +344,7 @@ prototype-based, rather than class-based object oriented ideas.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "mirror://cran/src/contrib/RColorBrewer_"
-                           version ".tar.gz"))
+       (uri (cran-uri "RColorBrewer" version))
        (sha256
         (base32 "1pfcl8z1pnsssfaaz9dvdckyfnnc6rcq56dhislbf571hhg7isgk"))))
     (build-system r-build-system)
@@ -372,10 +363,7 @@ designed by Cynthia Brewer as described at http://colorbrewer2.org")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append
-             "mirror://cran/src/contrib/stringi_"
-             version
-             ".tar.gz"))
+       (uri (cran-uri "stringi" version))
        (sha256
         (base32
          "183wrrjhpgl1wbnn9lhghyvhz7l2mc64mpcmzplckal7y9j7pmhw"))))
@@ -401,8 +389,7 @@ transliteration, concatenation, date-time formatting and parsing, etc.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "mirror://cran/src/contrib/stringr_"
-                           version ".tar.gz"))
+       (uri (cran-uri "stringr" version))
        (sha256
         (base32 "0jnz6r9yqyf7dschr2fnn1slg4wn6b4ik5q00j4zrh43bfw7s9pq"))))
     (build-system r-build-system)
@@ -426,8 +413,7 @@ the input of another.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "mirror://cran/src/contrib/reshape2_"
-                           version ".tar.gz"))
+       (uri (cran-uri "reshape2" version))
        (sha256
         (base32 "0hl082dyk3pk07nqprpn5dvnrkqhnf6zjnjig1ijddxhlmsrzm7v"))))
     (build-system r-build-system)
@@ -449,8 +435,7 @@ using just two functions: melt and dcast (or acast).")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "mirror://cran/src/contrib/scales_"
-                           version ".tar.gz"))
+       (uri (cran-uri "scales" version))
        (sha256
         (base32 "1kkgpqzb0a6lnpblhcprr4qzyfk5lhicdv4639xs5cq16n7bkqgl"))))
     (build-system r-build-system)
@@ -476,8 +461,7 @@ legends.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "mirror://cran/src/contrib/ggplot2_"
-                           version ".tar.gz"))
+       (uri (cran-uri "ggplot2" version))
        (sha256
         (base32 "0794kjqi3lrxb33lr1mykd58959hlgkhdn259vj8fxrh65mqw920"))))
     (build-system r-build-system)
@@ -498,3 +482,415 @@ by step from multiple data sources.  It also implements a sophisticated
 multidimensional conditioning system and a consistent interface to map data to
 aesthetic attributes.")
     (license license:gpl2+)))
+
+(define-public r-assertthat
+  (package
+    (name "r-assertthat")
+    (version "0.1")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "assertthat" version))
+              (sha256
+               (base32
+                "0dwsqajyglfscqilj843qfqn1ndbqpswa7b4l1d633qjk9d68qqk"))))
+    (build-system r-build-system)
+    (home-page "https://github.com/hadley/assertthat")
+    (synopsis "Easy pre and post assertions")
+    (description
+     "Assertthat is an extension to stopifnot() that makes it easy to declare
+the pre and post conditions that your code should satisfy, while also
+producing friendly error messages so that your users know what they've done
+wrong.")
+    (license license:gpl3+)))
+
+(define-public r-lazyeval
+  (package
+    (name "r-lazyeval")
+    (version "0.1.10")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "lazyeval" version))
+              (sha256
+               (base32
+                "02qfpn2fmy78vx4jxr7g7rhqzcm1kcivfwai7lbh0vvpawia0qwh"))))
+    (build-system r-build-system)
+    (home-page "https://github.com/hadley/lazyeval")
+    (synopsis "Lazy (non-standard) evaluation in R")
+    (description
+     "This package provides the tools necessary to do non-standard
+evaluation (NSE) in R.")
+    (license license:gpl3+)))
+
+(define-public r-dbi
+  (package
+    (name "r-dbi")
+    (version "0.3.1")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "DBI" version))
+              (sha256
+               (base32
+                "0xj5baxwnhl23rd5nskhjvranrwrc68f3xlyrklglipi41bm69hw"))))
+    (build-system r-build-system)
+    (home-page "https://github.com/rstats-db/DBI")
+    (synopsis "R database interface")
+    (description
+     "The DBI package provides a database interface (DBI) definition for
+communication between R and relational database management systems.  All
+classes in this package are virtual and need to be extended by the various
+R/DBMS implementations.")
+    (license license:lgpl2.0+)))
+
+(define-public r-bh
+  (package
+    (name "r-bh")
+    (version "1.58.0-1")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "BH" version))
+              (sha256
+               (base32
+                "17rnwyw9ib2pvm60iixzkbz7ff4fslpifp1nlx4czp42hy67kqpf"))))
+    (build-system r-build-system)
+    (home-page "https://github.com/eddelbuettel/bh")
+    (synopsis "R package providing subset of Boost headers")
+    (description
+     "This package aims to provide the most useful subset of Boost libraries
+for template use among CRAN packages.")
+    (license license:boost1.0)))
+
+(define-public r-evaluate
+  (package
+    (name "r-evaluate")
+    (version "0.8")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "evaluate" version))
+              (sha256
+               (base32
+                "137gc35jlizhqnx19mxim3llrkm403abj8ghb2b7v5ls9rvd40pq"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-stringr" ,r-stringr)))
+    (home-page "https://github.com/hadley/evaluate")
+    (synopsis "Parsing and evaluation tools for R")
+    (description
+     "This package provides tools that allow you to recreate the parsing,
+evaluation and display of R code, with enough information that you can
+accurately recreate what happens at the command line.  The tools can easily be
+adapted for other output formats, such as HTML or LaTeX.")
+    (license license:gpl3+)))
+
+(define-public r-formatr
+  (package
+    (name "r-formatr")
+    (version "1.2.1")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "formatR" version))
+              (sha256
+               (base32
+                "0f4cv2zv5wayyqx99ybfyl0p83kgjvnsv8dhcwa4s49kw6jsx1lr"))))
+    (build-system r-build-system)
+    (home-page "http://yihui.name/formatR")
+    (synopsis "Format R code automatically")
+    (description
+     "This package provides a function to format R source code.  Spaces and
+indent will be added to the code automatically, and comments will be preserved
+under certain conditions, so that R code will be more human-readable and tidy.
+There is also a Shiny app as a user interface in this package.")
+    (license license:gpl3+)))
+
+(define-public r-highr
+  (package
+    (name "r-highr")
+    (version "0.5.1")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "highr" version))
+              (sha256
+               (base32
+                "11hyawzhaw3ph5y5xphi7alx6df1d0i6wh0a2n5m4sxxhdrzswnb"))))
+    (build-system r-build-system)
+    (home-page "https://github.com/yihui/highr")
+    (synopsis "Syntax highlighting for R source code")
+    (description
+     "This package provides syntax highlighting for R source code.  Currently
+it supports LaTeX and HTML output.  Source code of other languages is
+supported via Andre Simon's highlight package.")
+    (license license:gpl3+)))
+
+(define-public r-mime
+  (package
+    (name "r-mime")
+    (version "0.4")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "mime" version))
+              (sha256
+               (base32
+                "145cdcg252w2zsq67dmvmsqka60msfp7agymlxs3gl3ihgiwg46p"))))
+    (build-system r-build-system)
+    (home-page "https://github.com/yihui/mime")
+    (synopsis "R package to map filenames to MIME types")
+    (description
+     "This package guesses the MIME type from a filename extension using the
+data derived from /etc/mime.types in UNIX-type systems.")
+    (license license:gpl2)))
+
+(define-public r-markdown
+  (package
+    (name "r-markdown")
+    (version "0.7.7")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "markdown" version))
+              (sha256
+               (base32
+                "00j1hlib3il50azs2vlcyhi0bjpx1r50mxr9w9dl5g1bwjjc71hb"))))
+    (build-system r-build-system)
+    ;; Skip check phase because the tests require the r-knitr package to be
+    ;; installed. This prevents installation failures. Knitr normally
+    ;; shouldn't be available since r-markdown is a dependency of the r-knitr
+    ;; package.
+    (arguments `(#:tests? #f))
+    (propagated-inputs
+     `(("r-mime" ,r-mime)))
+    (home-page "https://github.com/rstudio/markdown")
+    (synopsis "Markdown rendering for R")
+    (description
+     "This package provides R bindings to the Sundown Markdown rendering
+library (https://github.com/vmg/sundown).  Markdown is a plain-text formatting
+syntax that can be converted to XHTML or other formats.")
+    (license license:gpl2)))
+
+(define-public r-yaml
+  (package
+    (name "r-yaml")
+    (version "2.1.13")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "yaml" version))
+              (sha256
+               (base32
+                "18kz5mfn7qpif5pn91w4vbrc5bkycsj85vwm5wxwzjlb02i9mxi6"))))
+    (build-system r-build-system)
+    (home-page "https://cran.r-project.org/web/packages/yaml/")
+    (synopsis "Methods to convert R data to YAML and back")
+    (description
+     "This package implements the libyaml YAML 1.1 parser and
+emitter (http://pyyaml.org/wiki/LibYAML) for R.")
+    (license license:bsd-3)))
+
+(define-public r-knitr
+  (package
+    (name "r-knitr")
+    (version "1.11")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "knitr" version))
+              (sha256
+               (base32
+                "1ikjla0hnpjfkdbydqhhqypc0aiizbi4nyn8c694sdk9ca4jasdd"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-evaluate" ,r-evaluate)
+       ("r-digest" ,r-digest)
+       ("r-formatr" ,r-formatr)
+       ("r-highr" ,r-highr)
+       ("r-markdown" ,r-markdown)
+       ("r-stringr" ,r-stringr)
+       ("r-yaml" ,r-yaml)))
+    (home-page "http://yihui.name/knitr/")
+    (synopsis "General-purpose package for dynamic report generation in R")
+    (description
+     "This package provides a general-purpose tool for dynamic report
+generation in R using Literate Programming techniques.")
+    ;; The code is released under any version of the GPL.  As it is used by
+    ;; r-markdown which is available under GPLv2 only, we have chosen GPLv2+
+    ;; here.
+    (license license:gpl2+)))
+
+(define-public r-microbenchmark
+  (package
+    (name "r-microbenchmark")
+    (version "1.4-2")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "microbenchmark" version))
+              (sha256
+               (base32
+                "05yxvdnkxr2ll94h6f2m5sn3gg7vrlm9nbdxgmj2g8cp8gfxpfkg"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-ggplot2" ,r-ggplot2)))
+    (home-page "https://cran.r-project.org/web/packages/microbenchmark/")
+    (synopsis "Accurate timing functions for R")
+    (description
+     "This package provides infrastructure to accurately measure and compare
+the execution time of R expressions.")
+    (license license:bsd-2)))
+
+(define-public r-codetools
+  (package
+    (name "r-codetools")
+    (version "0.2-14")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "codetools" version))
+              (sha256
+               (base32
+                "0y9r4m2b8xgavr89sc179knzwpz54xljbc1dinpq2q07i4xn0397"))))
+    (build-system r-build-system)
+    (home-page "https://cran.r-project.org/web/packages/codetools/index.html")
+    (synopsis "Code analysis tools for R")
+    (description "This package provides code analysis tools for R.")
+    (license license:gpl3+)))
+
+(define-public r-pryr
+  (package
+    (name "r-pryr")
+    (version "0.1.2")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "pryr" version))
+              (sha256
+               (base32
+                "1in350a8hxwf580afavasvn3jc7x2p1b7nlwmj1scakfz74vghk5"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-stringr" ,r-stringr)
+       ("r-codetools" ,r-codetools)))
+    (native-inputs
+     `(("r-rcpp" ,r-rcpp)))
+    (home-page "https://github.com/hadley/pryr")
+    (synopsis "Tools for computing on the R language")
+    (description
+     "This package provides useful tools to pry back the covers of R and
+understand the language at a deeper level.")
+    (license license:gpl2)))
+
+(define-public r-memoise
+  (package
+    (name "r-memoise")
+    (version "0.2.1")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "memoise" version))
+              (sha256
+               (base32
+                "19wm4b3kq6xva43kga3xydnl7ybl5mq7b4y2fczgzzjz63jd75y4"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-digest" ,r-digest)))
+    (home-page "http://github.com/hadley/memoise")
+    (synopsis "Memoise functions for R")
+    (description
+     "This R package allows to cache the results of a function so that when
+you call it again with the same arguments it returns the pre-computed value.")
+    (license license:expat)))
+
+(define-public r-crayon
+  (package
+    (name "r-crayon")
+    (version "1.3.1")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "crayon" version))
+              (sha256
+               (base32
+                "0d38fm06h272a8iqlc0d45m2rh36giwqw7mwq4z8hkp4vs975fmm"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-memoise" ,r-memoise)))
+    (home-page "https://github.com/gaborcsardi/crayon")
+    (synopsis "Colored terminal output for R")
+    (description
+     "Colored terminal output on terminals that support ANSI color and
+highlight codes.  It also works in Emacs ESS.  ANSI color support is
+automatically detected.  Colors and highlighting can be combined and nested.
+New styles can also be created easily.  This package was inspired by the
+\"chalk\" JavaScript project.")
+    (license license:expat)))
+
+(define-public r-testthat
+  (package
+    (name "r-testthat")
+    (version "0.10.0")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "testthat" version))
+              (sha256
+               (base32
+                "0b3akwcx5mv9dmi8vssbk91hr3yrrdxd2fm6zhr31fnyz8kjx4pw"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-digest" ,r-digest)
+       ("r-crayon" ,r-crayon)))
+    (home-page "https://github.com/hadley/testthat")
+    (synopsis "Unit testing for R")
+    (description
+     "This package provides a unit testing system for R designed to be fun,
+flexible and easy to set up.")
+    (license license:expat)))
+
+(define-public r-r6
+  (package
+    (name "r-r6")
+    (version "2.1.1")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "R6" version))
+              (sha256
+               (base32
+                "16qq35bgxgswf989yvsqkb6fv7srpf8n8dv2s2c0z9n6zgmwq66m"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-knitr" ,r-knitr)
+       ("r-microbenchmark" ,r-microbenchmark)
+       ("r-pryr" ,r-pryr)
+       ("r-testthat" ,r-testthat)
+       ("r-ggplot2" ,r-ggplot2)
+       ("r-scales" ,r-scales)))
+    (home-page "https://github.com/wch/R6/")
+    (synopsis "Classes with reference semantics in R")
+    (description
+     "The R6 package allows the creation of classes with reference semantics,
+similar to R's built-in reference classes.  Compared to reference classes, R6
+classes are simpler and lighter-weight, and they are not built on S4 classes
+so they do not require the methods package.  These classes allow public and
+private members, and they support inheritance, even when the classes are
+defined in different packages.")
+    (license license:expat)))
+
+(define-public r-dplyr
+  (package
+    (name "r-dplyr")
+    (version "0.4.3")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "dplyr" version))
+              (sha256
+               (base32
+                "1p8rbn4p4yrx2840dapwiahf9iqa8gnvd35nyc200wfhmrxlqdlc"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-assertthat" ,r-assertthat)
+       ("r-r6" ,r-r6)
+       ("r-magrittr" ,r-magrittr)
+       ("r-lazyeval" ,r-lazyeval)
+       ("r-dbi" ,r-dbi)))
+    (native-inputs
+     `(("r-rcpp" ,r-rcpp)
+       ("r-bh" ,r-bh)))
+    (home-page "https://github.com/hadley/dplyr")
+    (synopsis "Tools for working with data frames in R")
+    (description
+     "dplyr is the next iteration of plyr.  It is focussed on tools for
+working with data frames.  It has three main goals: 1) identify the most
+important data manipulation tools needed for data analysis and make them easy
+to use in R; 2) provide fast performance for in-memory data by writing key
+pieces of code in C++; 3) use the same code interface to work with data no
+matter where it is stored, whether in a data frame, a data table or
+database.")
+    (license license:expat)))
diff --git a/gnu/packages/version-control.scm b/gnu/packages/version-control.scm
index 7f4f7f8f0e..b4c518acf7 100644
--- a/gnu/packages/version-control.scm
+++ b/gnu/packages/version-control.scm
@@ -3,6 +3,7 @@
 ;;; Copyright © 2013 Cyril Roelandt <tipecaml@gmail.com>
 ;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013, 2014 Andreas Enge <andreas@enge.fr>
+;;; Copyright © 2015 Mathieu Lirzin <mthl@openmailbox.org>
 ;;; Copyright © 2014, 2015 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org>
 ;;;
@@ -34,10 +35,12 @@
   #:use-module (guix build-system trivial)
   #:use-module (guix build utils)
   #:use-module (gnu packages apr)
+  #:use-module (gnu packages asciidoc)
   #:use-module (gnu packages base)
   #:use-module (gnu packages bison)
   #:use-module (gnu packages cook)
   #:use-module (gnu packages curl)
+  #:use-module (gnu packages docbook)
   #:use-module (gnu packages ed)
   #:use-module (gnu packages file)
   #:use-module (gnu packages flex)
@@ -681,6 +684,45 @@ sources files, and documents.  It fills a similar role to the free software
 RCS, PRCS, and Aegis packages.")
     (license gpl1+)))
 
+(define-public cvs-fast-export
+  (package
+    (name "cvs-fast-export")
+    (version "1.33")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "http://www.catb.org/~esr/"
+                                  name "/" name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "1c3s4nacbwlaaccx1fr7hf72kxxrzy49y2rdz5hhqbk8r29vm8w1"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:phases (modify-phases %standard-phases (delete 'configure))
+       #:make-flags
+       (list "CC=gcc" (string-append "prefix?=" (assoc-ref %outputs "out")))))
+    (inputs `(("git" ,git)))
+    (native-inputs `(("asciidoc"    ,asciidoc)
+                     ("docbook-xml" ,docbook-xml)
+                     ("docbook-xsl" ,docbook-xsl)
+                     ("xmllint"     ,libxml2)
+                     ("xsltproc"    ,libxslt)
+                     ;; These are needed for the tests.
+                     ("cvs"    ,cvs)
+                     ("python" ,python-2)
+                     ("rcs"    ,rcs)))
+    (home-page "http://www.catb.org/esr/cvs-fast-export/")
+    (synopsis "Export an RCS or CVS history as a fast-import stream")
+    (description "This program analyzes a collection of RCS files in a CVS
+repository (or outside of one) and, when possible, emits an equivalent history
+in the form of a fast-import stream.  Not all possible histories can be
+rendered this way; the program tries to emit useful warnings when it can't.
+
+The program can also produce a visualization of the resulting commit directed
+acyclic graph (DAG) in the input format of @uref{http://www.graphviz.org,
+Graphviz}.  The package also includes @command{cvssync}, a tool for mirroring
+masters from remote CVS hosts.")
+    (license gpl2+)))
+
 (define-public vc-dwim
   (package
     (name "vc-dwim")
diff --git a/gnu/packages/vpn.scm b/gnu/packages/vpn.scm
index 4cd5cd9b11..6af87d2657 100644
--- a/gnu/packages/vpn.scm
+++ b/gnu/packages/vpn.scm
@@ -63,7 +63,7 @@ endpoints.")
    (version "0.5.3")
    (source (origin
             (method url-fetch)
-            (uri (string-append "http://www.unix-ag.uni-kl.de/~massar/vpnc/vpnc-"
+            (uri (string-append "https://www.unix-ag.uni-kl.de/~massar/vpnc/vpnc-"
                                 version ".tar.gz"))
             (sha256 (base32
                      "1128860lis89g1s21hqxvap2nq426c9j4bvgghncc1zj0ays7kj6"))
diff --git a/gnu/system.scm b/gnu/system.scm
index ea6e9c13ea..cee5f37bcb 100644
--- a/gnu/system.scm
+++ b/gnu/system.scm
@@ -83,6 +83,11 @@
             operating-system-derivation
             operating-system-profile
             operating-system-grub.cfg
+            operating-system-etc-directory
+            operating-system-locale-directory
+            operating-system-boot-script
+
+            file-union
 
             local-host-aliases
             %setuid-programs
@@ -689,7 +694,7 @@ variable is not set---hence the need for this wrapper."
                       (apply execl #$modprobe
                              (cons #$modprobe (cdr (command-line))))))))
 
-(define (operating-system-activation-script os)
+(define* (operating-system-activation-script os #:key container?)
   "Return the activation script for OS---i.e., the code that \"activates\" the
 stateful part of OS, including user accounts and groups, special directories,
 etc."
@@ -763,12 +768,15 @@ etc."
                     ;; Tell the kernel to use our 'modprobe' command.
                     (activate-modprobe #$modprobe)
 
-                    ;; Tell the kernel where firmware is.
-                    (activate-firmware
-                     (string-append #$firmware "/lib/firmware"))
-
-                    ;; Let users debug their own processes!
-                    (activate-ptrace-attach)
+                    ;; Tell the kernel where firmware is, unless we are
+                    ;; activating a container.
+                    #$@(if container?
+                           #~()
+                           ;; Tell the kernel where firmware is.
+                           #~((activate-firmware
+                               (string-append #$firmware "/lib/firmware"))
+                              ;; Let users debug their own processes!
+                              (activate-ptrace-attach)))
 
                     ;; Run the services' activation snippets.
                     ;; TODO: Use 'load-compiled'.
@@ -777,11 +785,13 @@ etc."
                     ;; Set up /run/current-system.
                     (activate-current-system)))))
 
-(define (operating-system-boot-script os)
+(define* (operating-system-boot-script os #:key container?)
   "Return the boot script for OS---i.e., the code started by the initrd once
-we're running in the final root."
+we're running in the final root.  When CONTAINER? is true, skip all
+hardware-related operations as necessary when booting a Linux container."
   (mlet* %store-monad ((services (operating-system-services os))
-                       (activate (operating-system-activation-script os))
+                       (activate (operating-system-activation-script
+                                  os #:container? container?))
                        (dmd-conf (dmd-configuration-file services)))
     (gexp->file "boot"
                 #~(begin
diff --git a/gnu/system/file-systems.scm b/gnu/system/file-systems.scm
index b177f93398..8155b273e3 100644
--- a/gnu/system/file-systems.scm
+++ b/gnu/system/file-systems.scm
@@ -47,7 +47,6 @@
             %binary-format-file-system
             %shared-memory-file-system
             %pseudo-terminal-file-system
-            %devtmpfs-file-system
             %immutable-store
             %control-groups
             %elogind-file-systems
@@ -186,17 +185,6 @@ UUID representation."
     (type "binfmt_misc")
     (check? #f)))
 
-(define %devtmpfs-file-system
-  ;; /dev as a 'devtmpfs' file system, needed for udev.
-  (file-system
-    (device "none")
-    (mount-point "/dev")
-    (type "devtmpfs")
-    (check? #f)
-
-    ;; Mount it from the initrd so /dev/pts & co. can then be mounted over it.
-    (needed-for-boot? #t)))
-
 (define %tty-gid
   ;; ID of the 'tty' group.  Allocate it statically to make it easy to refer
   ;; to it from here and from the 'tty' group definitions.
@@ -282,8 +270,7 @@ UUID representation."
 (define %base-file-systems
   ;; List of basic file systems to be mounted.  Note that /proc and /sys are
   ;; currently mounted by the initrd.
-  (append (list %devtmpfs-file-system
-                %pseudo-terminal-file-system
+  (append (list %pseudo-terminal-file-system
                 %shared-memory-file-system
                 %immutable-store)
           %elogind-file-systems
diff --git a/gnu/system/linux-container.scm b/gnu/system/linux-container.scm
new file mode 100644
index 0000000000..fdf7460872
--- /dev/null
+++ b/gnu/system/linux-container.scm
@@ -0,0 +1,119 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2015 David Thompson <davet@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu system linux-container)
+  #:use-module (ice-9 match)
+  #:use-module (srfi srfi-1)
+  #:use-module (guix config)
+  #:use-module (guix store)
+  #:use-module (guix gexp)
+  #:use-module (guix derivations)
+  #:use-module (guix monads)
+  #:use-module (gnu build linux-container)
+  #:use-module (gnu system)
+  #:use-module (gnu system file-systems)
+  #:export (mapping->file-system
+            system-container
+            containerized-operating-system
+            container-script))
+
+(define (mapping->file-system mapping)
+  "Return a file system that realizes MAPPING."
+  (match mapping
+    (($ <file-system-mapping> source target writable?)
+     (file-system
+       (mount-point target)
+       (device source)
+       (type "none")
+       (flags (if writable?
+                  '(bind-mount)
+                  '(bind-mount read-only)))
+       (check? #f)
+       (create-mount-point? #t)))))
+
+(define (system-container os)
+  "Return a derivation that builds OS as a Linux container."
+  (mlet* %store-monad
+      ((profile (operating-system-profile os))
+       (etc     (operating-system-etc-directory os))
+       (boot    (operating-system-boot-script os #:container? #t))
+       (locale  (operating-system-locale-directory os)))
+    (file-union "system-container"
+                `(("boot" ,#~#$boot)
+                  ("profile" ,#~#$profile)
+                  ("locale" ,#~#$locale)
+                  ("etc" ,#~#$etc)))))
+
+(define (containerized-operating-system os mappings)
+  "Return an operating system based on OS for use in a Linux container
+environment.  MAPPINGS is a list of <file-system-mapping> to realize in the
+containerized OS."
+  (define user-file-systems
+    (remove (lambda (fs)
+              (let ((target (file-system-mount-point fs))
+                    (source (file-system-device fs)))
+                (or (string=? target (%store-prefix))
+                    (string=? target "/")
+                    (string-prefix? "/dev/" source)
+                    (string-prefix? "/dev" target)
+                    (string-prefix? "/sys" target))))
+            (operating-system-file-systems os)))
+
+  (define (mapping->fs fs)
+    (file-system (inherit (mapping->file-system fs))
+      (needed-for-boot? #t)))
+
+  (operating-system (inherit os)
+    (swap-devices '()) ; disable swap
+    (file-systems (append (map mapping->fs (cons %store-mapping mappings))
+                          %container-file-systems
+                          user-file-systems))))
+
+(define* (container-script os #:key (mappings '()))
+  "Return a derivation of a script that runs OS as a Linux container.
+MAPPINGS is a list of <file-system> objects that specify the files/directories
+that will be shared with the host system."
+  (let* ((os           (containerized-operating-system os mappings))
+         (file-systems (filter file-system-needed-for-boot?
+                               (operating-system-file-systems os)))
+         (specs        (map file-system->spec file-systems)))
+
+    (mlet* %store-monad ((os-drv (system-container os)))
+
+      (define script
+        #~(begin
+            (use-modules (gnu build linux-container)
+                         (guix build utils))
+
+            (call-with-container '#$specs
+              (lambda ()
+                (setenv "HOME" "/root")
+                (setenv "TMPDIR" "/tmp")
+                (setenv "GUIX_NEW_SYSTEM" #$os-drv)
+                (for-each mkdir-p '("/run" "/bin" "/etc" "/home" "/var"))
+                (primitive-load (string-append #$os-drv "/boot"))))))
+
+      (gexp->script "run-container" script
+                    #:modules '((ice-9 match)
+                                (srfi srfi-98)
+                                (guix config)
+                                (guix utils)
+                                (guix build utils)
+                                (guix build syscalls)
+                                (gnu build file-systems)
+                                (gnu build linux-container))))))
diff --git a/gnu/system/linux-initrd.scm b/gnu/system/linux-initrd.scm
index 48b855b567..519373fe34 100644
--- a/gnu/system/linux-initrd.scm
+++ b/gnu/system/linux-initrd.scm
@@ -182,6 +182,7 @@ loaded at boot time in the order in which they appear."
       "isci"                              ;for SAS controllers like Intel C602
       "usb-storage" "uas"                     ;for the installation image etc.
       "usbkbd" "usbhid"                       ;USB keyboards, for debugging
+      "dm-crypt" "xts"                        ;for encrypted root partitions
       ,@(if (or virtio? qemu-networking?)
             virtio-modules
             '())