* doc/guix.texi (Invoking guix import): Remove extraneous quotes around URLs.

* guix/import/cabal.scm (make-rx-matcher): Add optional parameter FLAG.
  (is-property, is-flag, is-src-repo, is-exec, is-test-suite, is-benchmark,
  is-lib, is-else, is-if): Make test case-insensitive.

* gnu/packages/emacs.scm (emacs-mmm-mode): New variable.

* gnu/packages/emacs.scm: New variable.

* Makefile.am (MODULES): Add 'guix/build-system/emacs.scm' and
  'guix/build/emacs-build-system.scm'.
* guix/build-system/emacs.scm: New file.
* guix/build/emacs-build-system.scm: New file.
* doc/guix.texi (Build Systems): Document it.

* guix/build/emacs-utils.scm (emacs-byte-compile-directory): New procedure.

* guix/import/elpa.scm: New file.
* guix/scripts/import.scm: Add "elpa" to 'importers'.
* guix/scripts/import/elpa.scm: New file.
* Makefile.am (MODULES): Add 'guix/import/elpa.scm' and
  'guix/scripts/import/elpa.scm'.
  (SCM_TESTS): Add 'tests/elpa.scm'.
* doc/guix.texi (Invoking guix import): Document it.
* tests/elpa.scm: New file.
* po/guix/POTFILES.in: Add 'guix/scripts/import/elpa.scm'.

* gnu/system/linux-initrd.scm (file-system->spec): Move this...
* gnu/system/file-systems.scm: ... to here.

* gnu/system/vm.scm (<file-system-mapping>, %store-mapping): Move from here...
* gnu/system/file-systems.scm: ...to here.
* guix/scripts/system.scm: Import (gnu system file-systems).

* guix/build/syscalls.scm (pivot-root): New procedure.
* tests/syscalls.scm ("pivot-root"): New test.

* guix/build/syscalls.scm (setns): New procedure.
* tests/syscalls.scm ("setns"): New test.

squash: setns

* guix/build/syscalls.scm (clone): New procedure.
  (CLONE_NEWNS, CLONE_NEWUTS, CLONE_NEWIPC, CLONE_NEWUSER, CLONE_NEWPID,
  CLONE_NEWNET): New variables.
* tests/syscalls.scm ("clone"): New test.

* gnu/packages/python.scm (python-testtools): move python-mimeparse from inputs
  to propagated-inputs.

* guix/utils.scm (call-with-temporary-directory): New procedure.

* guix/build/syscalls.scm (mkdtemp!): New procedure.
* tests/syscalls.scm ("mkdtemp!"): New test.

* guix/build/syscalls.scm (MNT_FORCE, MNT_DETACH, MNT_EXPIRE)
  (UMOUNT_NOFOLLOW): New variables.

* guix/build/syscalls.scm (MS_NOSUID, MS_NODEV, MS_NOEXEC, MS_STRICTATIME):
  New variables.

This is a followup to d2cef629.

* tests/guix-environment.sh: Add test for the exit code.

* guix/store.scm (run-with-store): Set %CURRENT-TARGET-SYSTEM to #f.
* tests/gexp.scm ("gexp->derivation vs. %current-target-system"): New test.

* gnu/packages/cups.scm (cups-filters): Update to 1.0.71.

Based on a patch by Alex Kost <alezost@gmail.com>.

* gnu/packages/pdf.scm (zathura-cb, zathura-ps, zathura-djvu)
  (zathura-pdf-poppler)[arguments]: In make-flags, set PREFIX instead of
  DESTDIR and adjust PLUGINDIR accordingly.

* gnu/packages/video.scm (libdvdnav): Update to 5.0.3.

* gnu/packages/video.scm (libdvdread): Update to 5.0.3.

* gnu/system.scm (etc-directory): Fix typo in a comment.

* .gitignore: Ignore only specific files instead of the whole
  'build-aux' directory.

* gnu/packages/video.scm (libmpeg2): New variable.

* gnu/packages/patches/liba52-enable-pic.patch,
  gnu/packages/patches/liba52-link-with-libm.patch,
  gnu/packages/patches/liba52-set-soname.patch,
  gnu/packages/patches/liba52-use-mtune-not-mcpu.patch: New files.
* gnu-system.am (dist_patch_DATA): Add them.
* gnu/packages/video.scm (liba52)[source]: Add patches.
  [native-inputs]: Add autoconf, automake, and libtool.
  [arguments]: Add "--enable-shared" to configure-flags.
  Add 'bootstrap' phase.

* gnu/packages/ruby.scm (ruby-hoe, ruby-rake-compiler,
  ruby-net-http-persistent, ruby-minitest, ruby-minitest-sprint,
  ruby-minitest-bacon): Remove custom 'rake gem' build phase that is now
  handled automatically by the Ruby build system.

* guix/build/ruby-build-system.scm (build): Run 'rake gem' when there is no
  gemspec in the source tree.

Co-Authored-By: David Thompson <davet@gnu.org>

* gnu/packages/bioinformatics.scm (samtools): Update to 1.2.

* gnu/packages/algebra.scm (pari-gp): Update to 2.7.4.

This is a followup to commit c803ffcb.

* gnu/packages/patches/icecat-libvpx-1.4.patch: Augment existing patch to
  include fixes for content/media/encoder/VP8TrackEncoder.cpp.

* gnu/packages/patches/icecat-libvpx-1.4.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/gnuzilla.scm (icecat)[source]: Add patch.

* gnu/packages/gstreamer.scm (arguments): Add 'disable-failing-rtprtx-tests'
  phase.

* gnu/packages/patches/libvpx-fix-armhf-link.patch,
  gnu/packages/patches/libvpx-fix-ssse3-quantize.patch,
  gnu/packages/patches/libvpx-vp9-out-of-bounds-access.patch: Remove files.
* gnu-system.am (dist_patch_DATA): Remove them.
* gnu/packages/video.scm (libvpx): Update to 1.4.0.  Remove patches.  Update
  source URI.

* gnu/packages/patches/libwmf-CVE-2006-3376.patch,
  gnu/packages/patches/libwmf-CVE-2009-1364.patch,
  gnu/packages/patches/libwmf-CVE-2015-0848+4588+4695+4696.patch: New files.
* gnu-system.am (dist_patch_DATA): Add them.
* gnu/packages/image.scm (libwmf)[source]: Add patches.

Reported
at <http://lists.gnu.org/archive/html/guix-devel/2015-07/msg00119.html

>.

* guix/scripts/substitute.scm (http-multiple-get): When RESP has "Connection:
  close", consume HEAD anyway; always call PROC to read from BODY.

Co-authored-by: Ludovic Courtès <ludo@gnu.org>

This commit had been inadvertently reverted in 322eeb87.

* nix/libstore/local-store.cc (LocalStore::getLineFromSubstituter):
  Flush when the line contains '\r'.

* build-aux/generate-authors.scm: New file.
* Makefile.am (gen-AUTHORS): New target.
  (dist-hook, .PHONY): Add it.

* gnu/packages/libreoffice.scm (libreoffice): Update to 4.4.4.3.