gnu: Add extremetuxracer.

* gnu/packages/games.scm (extremetuxracer): New variable.

Merge branch 'master' into core-updates

gnu: minetest: Swap input libjpeg-8 for current libjpeg-9.

* gnu/packages/games.scm (minetest): Swap input libjpeg-8 for current
  libjpeg-9.

gnu: minetest: Update to 0.4.12.

* gnu/packages/games.scm (minetest, minetest-data): Update to 0.4.12.

gnu: minetest: Fix build with modified cmake build system.

* gnu/packages/games.scm (minetest)[arguments]: Instead of setting CPATH,
  which is no more used by the cmake build system since commit 0d6f936, set
  the include directories for irrlicht and curl directly via configure flags.

gnu: Move 'openal' to (gnu packages audio).

* gnu/packages/games.scm (openal): Removed variable.
* gnu/packages/audio.scm (openal): New variable.

gnu: Move 'which' to (gnu packages base).

* gnu/packages/which.scm: Remove.
* gnu-system.am (GNU_SYSTEM_MODULES): Remove it.
* gnu/packages/base.scm (which): New variable.
* gnu/packages/aspell.scm, gnu/packages/audio.scm,
  gnu/packages/autogen.scm, gnu/packages/cdrom.scm,
  gnu/packages/compression.scm, gnu/packages/datamash.scm,
  gnu/packages/games.scm, gnu/packages/glib.scm,
  gnu/packages/gnu-pw-mgr.scm, gnu/packages/gnutls.scm,
  gnu/packages/gps.scm, gnu/packages/guile.scm,
  gnu/packages/java.scm, gnu/packages/libevent.scm,
  gnu/packages/linux.scm, gnu/packages/lisp.scm,
  gnu/packages/node.scm, gnu/packages/ntp.scm,
  gnu/packages/orpheus.scm, gnu/packages/pciutils.scm,
  gnu/packages/python.scm, gnu/packages/qt.scm,
  gnu/packages/rsync.scm, gnu/packages/sawfish.scm,
  gnu/packages/scheme.scm, gnu/packages/ssh.scm,
  gnu/packages/statistics.scm, gnu/packages/texlive.scm,
  gnu/packages/wdiff.scm: Adjust accordingly.

Merge branch 'core-updates'.

gnu: Add 'file-name' fields for github source tarballs without a name.

* gnu/packages/aarddict.scm (aarddict), gnu/packages/algebra.scm (arb),
  gnu/packages/audio.scm (jack-2, lvtk),
  gnu/packages/bioinformatics.scm (bedops, bedtools, bowtie),
  gnu/packages/game-development.scm (tiled),
  gnu/packages/games.scm (minetest-data, minetest, retroarch),
  gnu/packages/jrnl.scm (jrnl), gnu/packages/kde.scm (qjson),
  gnu/packages/libevent.scm (libuv), gnu/packages/linux.scm (pflask),
  gnu/packages/mail.scm (offlineimap, libetpan),
  gnu/packages/maths.scm (arpack-ng), gnu/packages/ninja.scm (ninja),
  gnu/packages/nutrition.scm (gourmet),
  gnu/packages/python.scm (python-cairocffi), gnu/packages/rdf.scm (lrdf),
  gnu/packages/ruby.scm (ruby-i18n), gnu/packages/sxiv.scm (sxiv): Add
  'file-name' field to origin.

Merge branch 'master' into core-updates

gnu: Sync GNU synopses and descriptions.

* gnu/packages/games.scm (gnugo): Adjust synopsis.
* gnu/packages/libffcall.scm (libffcall): Likewise.
* gnu/packages/lisp.scm (clisp): Adjust synopsis and description.

gnu: Add gnugo.

* gnu/packages/games.scm (gnugo): New variable.

gnu: xboard: Update to 4.8.0.

* gnu/packages/games.scm (xboard): Update to 4.8.0.

gnu: tiled: Move to game-development module.

* gnu/packages/games.scm (tiled): Move from here...
* gnu/packages/game-development (tiled): ...to here.

Merge branch 'core-updates'

Conflicts:
	gnu/packages/bootstrap.scm

gnu: add RetroArch.

* gnu/packages/games.scm (retroarch): New variable.

Merge branch 'master' into core-updates

gnu: minetest: Update to 0.4.11.

* gnu/packages/patches/minetest-subgame-env-var.patch: Delete.
* gnu-system.am (dist_patch_DATA): Remove patch.
* gnu/packages/games.scm (minetest, minetest-data): Update to 0.4.11.

Merge branch 'master' into core-updates

gnu: Fix or update a number of 'home-page' fields.

* gnu/packages/fltk.scm (fltk): Fix 'home-page'.
* gnu/packages/fonts.scm (font-bitstream-vera): Likewise, and fix
  license URL.
* gnu/packages/games.scm (gnubg, cmatrix, chess): Fix 'home-page'.
* gnu/packages/kde.scm (attica): Likewise.
* gnu/packages/mail.scm (fetchmail): Likewise.
* gnu/packages/popt.scm (popt): Likewise.
* gnu/packages/python.scm (python-mock): Likewise.
* gnu/packages/stalonetray.scm (stalonetray): Likewise.