gnu: xfce4-panel: Support panel plugins from other packages.

* gnu/packages/patches/xfce4-panel-plugins.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/xfce.scm (xfce4-panel): Add the patch, and a
  native search path specification for X_XFCE4_LIB_DIRS.

Revert "gnu: gobject-introspection: Update to 1.42.0 and add new patch."

This reverts commit 66717243d0683fa05b5630c2e011f3a486a8d316.  Several
packages fail to build with the new version.

gnu: Add wmctrl.

* gnu/packages/xdisorg.scm (wmctrl): New variable.
* gnu/packages/patches/wmctrl-64-fix.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.

gnu: gobject-introspection: Update to 1.42.0 and add new patch.

* gnu/packages/glib.scm (gobject-introspection): Update to version 1.42.0.
  Add patch 'gobject-introspection-absolute-shlib-path.patch' provided by Luca
  Bruno <lucabru@src.gnome.org> for Nix.

gnu: glib: Work around unreliable GIO test.

Fixes <http://bugs.gnu.org/18445>.

* gnu/packages/patches/glib-tests-gapplication.patch: New file
* gnu/packages/glib.scm (glib)[source]: Add it.
* gnu-system.am (dist_patch_DATA): Add it.

gnu: Add python-pygobject.

* gnu/packages/patches/python2-pygobject-2-gi-info-type-error-domain.patch:
  New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/glib.scm (python-pygobject, python2-pygobject-2): New
  variables.

gnu: python: Add sqlite input.

* gnu/packages/patches/python-sqlite-3.8.4-test-fix.patch,
  gnu/packages/patches/python2-sqlite-3.8.4-test-fix.patch: New patches.
* gnu-system.am (dist_patch_DATA): Add them.
* gnu/packages/python.scm (python-2)[source]: Add patch.
  [inputs]: Add sqlite.
  (python)[source]: Add patch.

linux-modules: Correctly propagate error code from 'init_module'.

* gnu/packages/patches/guile-linux-syscalls.patch (scm_load_linux_module):
  Leave 'errno' unchanged when ERR != 0.
* gnu/build/linux-modules.scm (load-linux-module*): Check for the errno
  value of ARGS to determine whether the module was already loaded.

gnu: xf86-video-openchrome: Patch to correct build failure.

* gnu/packages/xorg.scm (xf86-video-openchrome): Add patch for build failure
    with glibc-2.20. Fixes bug #18740.
* gnu/packages/patches/xf86-video-openchrome-includes.patch: New file.
* gnu-system.am (dist_patch_DATA): Register patch.

gnu: icu4c: Update to 54.1.

* gnu/packages/icu4c.scm (icu4c): Update to 54.1.
* gnu/packages/patches/icu4c-test-date-format.patch: Remove unneeded patch.
* gnu-system.am (dist_patch_DATA): Unregister dropped patch.

gnu: Add minetest.

* gnu/packages/patches/minetest-subgame-env-var.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/games.scm (minetest): New variable.

gnu: gnutls: Update to 3.2.20--this fixes CVE-2014-8564.

* gnu/packages/patches/gnutls-server-name-fix.patch: Remove.
* gnu-system.am (dist_patch_DATA): Adjust accordingly.
* gnu/packages/gnutls.scm (gnutls): Update to 3.2.20.
  Remove 'patches' field.

gnu: cross-base: Apply Qualcomm's patches for Binutils and GCC.

This fixes compilation of the ath9k-htc firmware.  Before that, loading
it would result in "Target is unresponsive".  The patches come from
the ath9k-htc firmware source.

* gnu/packages/patches/ath9k-htc-firmware-binutils.patch,
  gnu/packages/patches/ath9k-htc-firmware-gcc.patch: New files.
* gnu-system.am (dist_patch_DATA): Add them.
* gnu/packages/cross-base.scm (package-with-patch): New procedure.
  (cross-binutils): Check whether TARGET starts with "xtensa-", and call
  'package-with-patch' when it does.
  (cross-gcc-patches): New procedure.
  (cross-gcc): Use it to add patches.

gnu: Add polkit.

* gnu/packages/polkit.scm (polkit): New variable.
* gnu/packages/patches/polkit-drop-test.patch: New file.
* gnu-system.am (dist_patch_DATA): Register patch file.

gnu: kmod: 'kmod static-nodes' command honors $LINUX_MODULE_DIRECTORY.

* gnu/packages/patches/kmod-module-directory.patch: Add hunk for
  tools/static-nodes.c.  Taken from Nixpkgs, where it was added by
  Eelco Dolstra <eelco.dolstra@logicblox.com>.

gnu: Add ath9k-htc-firmware.

* gnu/packages/firmware.scm: New file.
* gnu/packages/patches/ath9k-htc-firmware-objcopy.patch: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add 'firmware.scm'.
  (dist_patch_DATA): Add the patch.

gnu: pulseaudio: Fix CVE-2014-3970 and intermittent test failures.

* gnu/packages/patches/pulseaudio-CVE-2014-397.patch: New file.
* gnu/packages/patches/pulseaudio-fix-mult-test.patch: New file.
* gnu-system.am (dist_patch_DATA): Add them.
* gnu/packages/pulseaudio.scm (pulseaudio): Add patches.

gnu: emacs: Update to 24.4.

* gnu/packages/patches/emacs-configure-sh.patch: Remove.
* gnu-system.am (dist_patch_DATA): Remove it.
* gnu/packages/emacs.scm (emacs): Update to 24.4.  Add 'acl' as input.
  Remove --with-crt-dir configure option.
  (emacs-no-x-toolkit): Add 'inotify-tools' as input.  Adjust to cope
  with the lack of configure-flags in the main 'emacs' package.

gnu: ccache: Upgrade to 3.1.10.

* gnu/packages/ccache.scm (ccache): Upgrade to 3.1.10.
  [source]: Remove patches.
* gnu/packages/patches/ccache-stdc-predef-test.patch: Delete patch.
* gnu-system.am (dist_patch_DATA): Remove it.

gnu: gnutls: Patch bug in 'set-session-server-name!'.

* gnu/packages/patches/gnutls-server-name-fix.patch: New file.
* gnu/packages/gnutls.scm (gnutls)[source]: Use it.
* gnu-system.am (dist_patch_DATA): Add it.