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.

gnu: icon-naming-utils: Wrap with PERL5LIB to find XML::Simple.

Fixes <http://bugs.gnu.org/19367>.

* gnu/packages/gnome.scm (icon-naming-utils)[arguments]: New field.

gnu: perl-xml-simple: Propagate XML::Parser.

* gnu/packages/xml.scm (perl-xml-simple): Move XML::Parser from 'inputs'
  to 'propagated-inputs'.

gnu: mesa: Fix build on non-intel systems.

* gnu/packages/gl.scm (mesa): On non-intel systems, pass
  "--with-dri-drivers=" configure flag with i915 and i965 removed.

gnu: libdrm: Remove old version 2.4.33.

* gnu/packages/xdisorg.scm (libdrm-2.4.33): Remove, as it is no longer needed.

gnu: mutt: Add fix for CVE-2014-9116.

* gnu/packages/patches/mutt-CVE-2014-9116.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/mail.scm (mutt): Add patch.

gnu: Import (gnu packages) into (gnu packages zip).

Should have been included in: e5da2f38c3ca8d4626c1b87e045d00d28c1bf4d0.

* gnu/packages/zip.scm: Import (gnu packages).

gnu: unzip: Add fixes for CVE-2014-{8139,8140,8141}.

* gnu/packages/patches/unzip-CVE-2014-8139.patch,
  gnu/packages/patches/unzip-CVE-2014-8140.patch,
  gnu/packages/patches/unzip-CVE-2014-8141.patch: New files.
* gnu-system.am (dist_patch_DATA): Add them.
* gnu/packages/zip.scm (unzip): Add patches.

gnu: cpio: Add fixes for CVE-2014-9112.

* gnu/packages/patches/cpio-CVE-2014-9112-pt1.patch,
  gnu/packages/patches/cpio-CVE-2014-9112-pt2.patch,
  gnu/packages/patches/cpio-CVE-2014-9112-pt3.patch,
  gnu/packages/patches/cpio-CVE-2014-9112-pt4.patch,
  gnu/packages/patches/cpio-CVE-2014-9112-pt5.patch: New files.
* gnu-system.am (dist_patch_DATA): Add them.
* gnu/packages/cpio.scm (cpio): Add patches.  Add 'autoconf' to
  native-inputs.

list-packages: Expand 'mirror://' URIs for patches.

* build-aux/list-packages.scm (package->sxml)[patches](patch-url): Use
  'maybe-expand-mirrors' to get the real URL.

download: Export 'maybe-expand-mirrors'.

* guix/build/download.scm (uri-vicinity, maybe-expand-mirrors): New
  procedures.
  (url-fetch): Remove them from here.

tests: Make the 'lint' tests slightly more concise.

* tests/lint.scm (with-warnings): New macro.
  Replace all uses of 'call-with-warnings' with the corresponding
  'with-warnings' form.

tests: Factorize the 'dummy-package' macro.

* guix/tests.scm (dummy-package): New macro.
* tests/lint.scm (dummy-package): Remove.
* tests/packages.scm (dummy-package): Remove.

lint: Add tests for the 'home-page' checker.

Suggested by Cyril Roelandt <tipecaml@gmail.com>.

* tests/lint.scm (%http-server-port, %http-server-socket, %local-url,
  stub-http-server): New variables.
  (http-write, call-with-http-server): New procedures.
  (with-http-server): New macro.
  ("home-page: wrong home-page", "home-page: invalid URI", "home-page:
  host not found", "home-page: Connection refused", "home-page: 200",
  "home-page: 404"): New tests.
* guix/scripts/lint.scm (check-home-page): Export.

gnu: Fix misuses of 'x11-style' licenses.

* gnu/packages/xorg.scm (libevdev)[license]: Actually call
  'license:x11-style'.
  (libxshmfence): Likewise.

lint: Report on the package being checked.

* guix/scripts/lint.scm (run-checkers): Check
  whether (current-error-port) is a tty, and print the package being
  checked and the checker currently running when it is.

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.

lint: Add 'home-page' checker.

* guix/build/download.scm (open-connection-for-uri): Export.
* guix/scripts/lint.scm (probe-uri, check-home-page): New procedures.
  (%checkers): Add 'home-page' checker.

Merge branch 'xorg-updates'

gnu: vtk: Fix build with mesa-10.

* gnu/packages/patches/vtk-mesa-10.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/vtk.scm (vtk): Add patch.  Add glu to inputs.