gnu: linux-libre@4.4: Update to 4.4.31.

* gnu/packages/linux.scm (linux-libre-4.4): Update to 4.4.31.

gnu: linux-libre: Update to 4.8.7.

* gnu/packages/linux.scm (%linux-libre-version, %linux-libre-hash)
(linux-libre): Update to 4.8.7.

gnu: Add guile-aspell.

* gnu/packages/guile.scm (guile-aspell): New variable.

gnu: wordnet: Build with gcc@6 to prevent chunked literal strings.

* gnu/packages/wordnet.scm (wordnet)[arguments]: Remove
-fno-builtin-strcpy.
[native-inputs]: New field.

gnu: python-pillow: Update to 3.3.3 [fixes CVE-2016-{9189,9190}].

* gnu/packages/python.scm (python-pillow, python2-pillow): Update to 3.3.3.

gnu: r-rmarkdown: Remove phase "copy-files-without-mode".

This phase is no longer needed as upstream has merged the fix in the
current release.

* gnu/packages/statistics.scm (r-rmarkdown)[arguments]: Remove build
phase "copy-files-without-mode".

gnu: inkscape: Use modify-phases syntax.

* gnu/packages/inkscape.scm (inkscape)[arguments]: Use modify-phases
syntax.

gnu: vim: Update to 8.0.0073.

* gnu/packages/vim.scm (vim, vim-full): Update to 8.0.0073.

container: Pass a list of <file-system> objects as things to mount.

* gnu/build/linux-container.scm (mount-file-systems): 'mounts' is now a
list of <file-system> objects instead of a list of lists ("specs").
Add call to 'file-system->spec' as the argument to 'mount-file-system'.
(run-container, call-with-container): Adjust docstring accordingly.
* gnu/system/file-systems.scm (spec->file-system): New procedure.
* gnu/system/linux-container.scm (container-script)[script]: Call
'spec->file-system' inside gexp.
* guix/scripts/environment.scm (launch-environment/container): Remove
call to 'file-system->spec'.
* tests/containers.scm ("call-with-container, mnt namespace")
("call-with-container, mnt namespace, wrong bind mount"): Pass a list of
<file-system> objects.

linux-container: Use 'source-module-closure' when generating the script.

* gnu/system/linux-container.scm (container-script)[script]: Use
'source-module-closure' in 'with-imported-modules' form.

gnu: guix: Update development snapshot.

* gnu/packages/package-management.scm (guix-devel): Update to commit
324a2ba56c2f4c0d91567ed08024ae2c492f3b23.

gnu: gmsh: Update to 2.14.1

* gnu/packages/maths.scm (gmsh): Update to 2.14.1.
[source]: Use new uri.

Signed-off-by: Efraim Flashner <efraim@flashner.co.il>

gnu: milkytracker: Update upstream location.

* gnu/packages/music.scm (milkytracker)[source]: Update source uri.
[home-page]: Change to new domain.

Reported-by: ng0 <ng0@we.make.ritual.n0.is>

gnu: imagemagick: Update to 6.9.6-4.

* gnu/packages/imagemagick.scm (imagemagick): Update to 6.9.6-4.

gnu: claws-mail: Update to 3.14.1.

* gnu/packages/mail.scm (claws-mail): Update to 3.14.1.

gnu: Add pdfposter.

* gnu/packages/pdf.scm(pdfposter): New variable.

gnu: Add python2-pypdf.

* gnu/packages/pdf.scm (python2-pypdf): New variable.

gnu: Add python-pypdf2.

* gnu/packages/pdf.scm (python-pypdf2, python2-pypdf2): New variables.

gnu: gcc@5, gcc@6: Work around use of 'movabs' for /gnu/store strings.

Partly addresses <http://bugs.gnu.org/24703>.
Reported by Mark H Weaver <mhw@netris.org>.

* gnu/packages/patches/gcc-strmov-store-file-names.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/gcc.scm (gcc-5)[sources](patches): Add it.
(gcc-6)[sources](patches): Add it.

gnu: Add kdevelop-pg-qt.

* gnu/packages/kde.scm (kdevelop-pg-qt): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>