gnu: Add Chez-Scheme.

* gnu/packages/scheme.scm (chez-scheme): New variable.

gnu: netpbm: Return #t from custom phases.

    * gnu/packages/netpbm.scm (netpbm)[arguments]: Do it.

gnu: netpbm: Fix location of X color name database.

* gnu/packages/netpbm.scm (netpbm)[inputs]: Add 'xorg-rgb'.
  [arguments]: In the 'configure' phase, patch 'pm_config.in.h' with the full
  path to the 'rgb.txt' file.

gnu: netpbm: Use 'modify-phases' syntax.

* gnu/packages/netpbm.scm (netpbm)[arguments]: Do it.

gnu: Add the X color name database file.

* gnu/packages/xorg.scm (xorg-rgb): New variable.

gnu: cross-base: Add srfi-26 for glibc.

Fixes a regression introduced in
commit efc4eb147512fa7a2c6d74d9b296cfc22b1ef198.

* gnu/packages/cross-base.scm (cross-libc)[arguments]: Add (srfi
srfi-26).

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

gnu: libva: Update to 1.7.0.

* gnu/packages/video.scm (libva): Update to 1.7.0.
[home-page]: Use https.

gnu: bdb: Update to 6.2.23.

* gnu/packages/databases.scm (bdb): Update to 6.2.23.

gnu: kmod: Update to 22.

* gnu/packages/linux.scm (kmod): Update to 22.

gnu: libarchive: Update to 3.2.0.

* gnu/packages/patches/libarchive-CVE-2013-0211.patch,
gnu/packages/patches/libarchive-CVE-2016-1541.patch,
gnu/packages/patches/libarchive-bsdtar-test.patch,
gnu/packages/patches/libarchive-fix-lzo-test-case.patch,
gnu/packages/patches/libarchive-mtree-filename-length-fix.patch: Delete files.
* gnu/local.mk (dist_patch_DATA): Remove them.
* gnu/packages/backup.scm (libarchive): Update to 3.2.0.
[source]: Remove deleted patches.
[replacement]: Remove.
(libarchive/fixed): Remove variable.

Merge branch 'master' into core-updates

gnu: jemalloc: No longer build with gcc-4.8 on i686.

* gnu/packages/jemalloc.scm (jemalloc)[native-inputs]: Remove field.

gnu: Update module imports for asciidoc and doxygen.

This is a followup to commit 0573a923def01e54bf104e0015ade44ab42f694f.

* gnu/packages/algebra.scm, gnu/packages/bioinformatics.scm,
gnu/packages/fcitx.scm, gnu/packages/fish.scm,
gnu/packages/freedesktop.scm, gnu/packages/game-development.scm,
gnu/packages/gcc.scm, gnu/packages/graphics.scm, gnu/packages/image.scm,
gnu/packages/kodi.scm, gnu/packages/libreoffice.scm,
gnu/packages/linux.scm, gnu/packages/messaging.scm,
gnu/packages/mpd.scm, gnu/packages/music.scm, gnu/packages/rdf.scm,
gnu/packages/serialization.scm, gnu/packages/version-control.scm,
gnu/packages/web.scm, gnu/packages/wm.scm, gnu/packages/xdisorg.scm,
gnu/packages/xiph.scm: Change imports of (gnu packages asciidoc) or
(gnu packages doxygen) to (gnu packages documentation).

Merge branch 'gnome-updates'

gnu: linux-libre: Update to 4.5.4.

* gnu/packages/linux.scm (linux-libre): Update to 4.5.4.

gnu: linux-libre-4.4: Update to 4.4.10.

* gnu/packages/linux.scm (linux-libre-4.4): Update to 4.4.10.

gnu: linux-libre-4.1: Update to 4.1.24.

* gnu/packages/linux.scm (linux-libre-4.1): Update to 4.1.24.

gnu: icecat: Update to 38.8.0-gnu1.

* gnu/packages/patches/icecat-CVE-2016-2805.patch,
gnu/packages/patches/icecat-CVE-2016-2807-pt1.patch,
gnu/packages/patches/icecat-CVE-2016-2807-pt2.patch,
gnu/packages/patches/icecat-CVE-2016-2807-pt3.patch,
gnu/packages/patches/icecat-CVE-2016-2807-pt4.patch,
gnu/packages/patches/icecat-CVE-2016-2807-pt5.patch,
gnu/packages/patches/icecat-CVE-2016-2808.patch,
gnu/packages/patches/icecat-CVE-2016-2814.patch,
gnu/packages/patches/icecat-re-enable-DHE-cipher-suites.patch,
gnu/packages/patches/icecat-update-bundled-graphite2.patch: Delete files.
* gnu/local.mk (dist_patch_DATA): Remove them.
* gnu/packages/gnuzilla.scm (icecat): Update to 38.8.0-gnu1.
[source] Remove deleted patches.

gnu: Add NetCDF.

* gnu/packages/maths.scm (netcdf, netcdf-parallel-openmpi): New variables.

gnu: Add Matio.

* gnu/packages/maths.scm (matio): New variable.