gnu: base: Fix a bug that occurs in non-Linux systems.

* gnu/packages/base.scm (tar): Apply patch.
* gnu/packages/patches/tar-d_ino_in_dirent-fix.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.

gnu: flex: Add missing quasiquote.

* gnu/packages/flex.scm (flex): Add missing quasiquote at native-inputs.

gnu: flex: Add m4 as a native input.

* gnu/packages/flex (flex): Add m4 as a native input.

gnu: bison: Add m4 as a native input.

* gnu/packages/bison (bison): Add m4 as a native input.

gnu: mesa: Update to 10.5.4.

* gnu/packages/gl.scm (mesa): Update version to 10.5.4.  Add libxvmc to
  inputs.  Remove python, gettext, flex, and bison from native-inputs.  Remove
  hack that was necessary to prevent rebuilding parts of the build system.

gnu: mesa: Add libva input.

There is a circular dependency between Mesa and libVA, so we use a
libva-no-mesa package that builds libVA without GLX and EGL support, and use
that for building Mesa.

* gnu/packages/gl.scm (libva-for-mesa): New variable.
(mesa): Add as input.

gnu: polkit-qt: Add $libdir to RUNPATH.

* gnu/packages/polkit.scm (polkit-qt)[arguments]: Add
  #:configure-flags.

gnu: mariadb: Remove now unneeded workaround.

This has been redundant since 21e583d.

* gnu/packages/databases.scm (mariadb)[arguments]: Remove LDFLAGS
  definition.

gnu: ganv: Set the RUNPATH of binaries to $libdir.

* gnu/packages/gtk.scm (ganv)[arguments]: Add 'set-ldflags' phase.

Merge branch 'master' into core-updates

gnu: qt: Add patch for i686 build problem.

See <https://bugreports.qt.io/browse/QTBUG-45205>.

* gnu/packages/patches/qt5-conflicting-typedefs.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/qt.scm (qt): Add the patch.

gnu: Add orcus.

* gnu/packages/libreoffice.scm (orcus): New variable.

gnu: lilv: Set rpath via LDFLAGS.

Fixes <http://bugs.gnu.org/20040>.

* gnu/packages/audio.scm (lilv): Add a pre-configure phase setting $LDFLAGS to
  set the rpath to $out/lib.

gnu: sord: Set rpath via LDFLAGS.

Fixes <http://bugs.gnu.org/20044>.

* gnu/packages/rdf.scm (sord): Add a pre-configure phase setting $LDFLAGS to
  set the rpath to $out/lib.

gnu: serd: Set rpath via LDFLAGS.

Fixes <http://bugs.gnu.org/20051>.

* gnu/packages/rdf.scm (serd): Add a pre-configure phase setting $LDFLAGS to
  set the rpath to $out/lib.

gnu: wxwidgets: Set rpath in LDFLAGS.

Fixes <http://bugs.gnu.org/20049>.

* gnu/packages/wxwidgets.scm (wxwidgets): Add a make flag to set rpath to
  $out/lib via LDFLAGS.

gnu: gcc: Add link to upstream bug report.

* gnu/packages/gcc.scm (gcc-4.8): Add link to bug report in comment.

gnu: gcc: Add $libdir to the RUNPATH of libvtv.so.

* gnu/packages/gcc.scm (gcc-4.9): Inherit from GCC-4.8.
  [source]: Add 'gcc-libvtv-runpath.patch'.
  (gcc-5.1): Inherit from GCC-4.9.
  [source]: Use patches from GCC-4.9.
* gnu/packages/patches/gcc-libvtv-runpath.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.

gnu: libva: Patch a dlopen call, set drivers path.

* gnu/packages/video.scm (libva): Patch the reference to libva-x11.so (passed
  to dlopen()) to use an absolute path.  Add --with-drivers-path= to
  #:configure-flags with a value pointing to mesa's $prefix/lib/dri.

gnu: jack2: Add $libdir to the RUNPATH of all the binaries.

* gnu/packages/audio.scm (jack2)[arguments]: Add #:phases.