gnu: luit: Accomodate stricter warnings of gcc-4.8.

* gnu/packages/patches/luit-posix.patch: New file.
* gnu-system.am (dist_patch_DATA): Register patch.
* gnu/packages/xorg.scm (luit): Apply patch.

gnu: xmodmap: Add patch to allow builds with GCC 4.8.

* gnu/packages/patches/xmodmap-asprintf.patch: New file.
* gnu/packages/xorg.scm (xmodmap): Use it.
* gnu-system.am (dist_patch_DATA): Add it.

gnu: pixman: Upgrade to 0.32.4.

* gnu/packages/xorg.scm (pixman): Upgrade to 0.32.4.

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

Merge branch 'core-updates'

Conflicts:
	gnu/packages/gnunet.scm

gnu: gettext: Rename binding to 'gnu-gettext'.

* gnu/packages/gettext.scm (gettext): Rename to...
  (gnu-gettext): ... this.  This is used to work around the circular
  dependency introduced in commit c42a4b7, which users with a #:renamer
  cannot cope with.
* gnu/packages/acl.scm, gnu/packages/attr.scm, gnu/packages/cdrom.scm,
  gnu/packages/fdisk.scm, gnu/packages/gkrellm.scm, gnu/packages/glib.scm,
  gnu/packages/gnunet.scm, gnu/packages/grub.scm, gnu/packages/linux.scm,
  gnu/packages/maths.scm, gnu/packages/nano.scm, gnu/packages/parted.scm,
  gnu/packages/system.scm, gnu/packages/version-control.scm,
  gnu/packages/vpn.scm, gnu/packages/w3m.scm, gnu/packages/wget.scm:
  Adjust accordingly.

Merge branch 'master' into core-updates

gnu: mesa: Update URI.

* gnu/packages/xorg.scm (mesa): Update URI.

gnu: xorg: Add xcb-util-renderutil.

* gnu/packages/xorg.scm (xcb-util-renderutil): New variable.

gnu: xorg: Add xcb-util-keysyms.

* gnu/packages/xorg.scm (xcb-util-keysyms): New variable.

gnu: xorg: Add xcb-util-image.

* gnu/packages/xorg.scm (xcb-util-image): New variable.

gnu: xorg: Add xcb-util.

* gnu/packages/xorg.scm (xcb-util): New variable.
* gnu/packages/xorg.scm (xcb-util-wm): Expand the description.

gnu: xorg: Add xcb-util-wm.

* gnu/packages/xorg.scm (xcb-util-wm): New variable.

gnu: libxcb: Enable xcb-xkb.

* gnu/packages/xorg.scm (libxcb): Add configure flag "--enable-xkb".

gnu: libxi: Propagate inputs inputproto and libx11.

* gnu/packages/xorg.scm (libxi): Propagate inputs inputproto and libx11,
    as stipulated by xi.pc.

gnu: xf86-input-joystick: Fix installation path.

* gnu/packages/xorg.scm (xf86-input-joystick): Fix installation path.

gnu: xf86-input-vmmouse: Fix installation path.

* gnu/packages/xorg.scm (xf86-input-vmmouse): Fix installation path.

gnu: xf86-input-synaptics: Fix installation paths.

* gnu/packages/xorg.scm (xf86-input-synaptics): Fix installation paths.

Merge branch 'master' into core-updates

gnu: xorg: Fix xorg-server.

* gnu/packages/xorg.scm (xkbcomp-intermediate): New variable, serves as
    input to xkeyboard-config.
* gnu/packages/xorg.scm (xkeyboard-config): Add input xkbcomp-intermediate.
* gnu/packages/xorg.scm (xkbcomp): Add input xkeyboard-config.
* gnu/packages/xorg.scm (xorg-server): Adapt xkb paths and replace references
    to /bin/sh (with Ludovic Courtès <ludo@gnu.org>).

Merge branch 'master' into core-updates