Merge branch 'core-updates'

Conflicts:
	gnu/packages/gnunet.scm

doc: List the supported platforms.

* doc/guix.texi (GNU Distribution): List the supported platforms.

gnu: net-tools: Adjust to removal of the 'patch' phase.

* gnu/packages/linux.scm (net-tools): Adjust to removal of the 'patch'
  phase.  Reported by Mark H. Weaver <mhw@netris.org>.

gnu: libextractor: Add input.

* gnu/packages/gnunet.scm (libextractor): Add input exiv2.

gnu: qemu: Add GUI version.

* gnu/packages/qemu.scm (qemu): Rename to...
  (qemu-headless): ... this.
  (qemu/smb-shares): Inherit from it.
  (qemu): New variable.
* gnu/packages/grub.scm (qemu-for-tests): Inherit from QEMU-HEADLESS.

gnu: sdl: Propagate libx11.

* gnu/packages/sdl.scm (sdl): Propagate LIBX11.
  (sdl-gfx, sdl-ttf): Remove LIBX11 from 'inputs'.

build: Make sure pkg.m4 is present.

Suggested by John Darrington <john@darrington.wattle.id.au>.

* configure.ac: Forbid occurrences of 'PKG_CHECK_MODULES' in the
  output.

gnu: libextractor: Add optional inputs.

* gnu/packages/gnunet.scm (libextractor): Add inputs ffmpeg and gstreamer.

gnu: make-bootstrap: Add missing inputs for Canadian cross of '%gcc-static'.

* gnu/packages/make-bootstrap.scm (%gcc-static): Add 'native-inputs'
  field.

gnu: Add SDL extension libraries.

* gnu/packages/sdl.scm (sdl-gfx, sdl-image, sdl-mixer, sdl-net, sdl-ttf): New
  variables.

gnu: Add PowerTOP.

* gnu/packages/linux.scm (powertop): New variable.

gnu: Add libnl.

* gnu/packages/linux.scm (libnl): New variable.

gnu: apl: Adjust to gettext renaming.

* gnu/packages/apl.scm (apl): Use GNU-GETTEXT.

hydra: Adjust to gettext package rename.

* build-aux/hydra/gnu-system.scm (%core-packages): Change 'gettext' to
  'gnu-gettext'.

Merge branch 'master' into core-updates

Conflicts:
	guix/packages.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.

gnu: Add GNU Parallel.

* gnu/packages/parallel.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.

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

build-system/python: Add #:test-target parameter.

* guix/build-system/python.scm (python-build): Add #:test-target
  parameter.  Reported by Eric Bavier <ericbavier@gmail.com>.

gnu: make-bootstrap: Simplify '%gcc-static'.

* gnu/packages/make-bootstrap.scm (%gcc-static): Add a bunch of
  --disable configure flags.  Remove useless 'inputs' field.

gnu: Add SDL and SDL2.

* gnu/packages/sdl.scm (sdl, sdl2): New variables.

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