* gnu/packages/gnupg.scm (libassuan): Update to 2.2.1.

* gnu/packages/mpd.scm (ncmpc): Update to 0.24.

* gnu/packages/mpd.scm (ncmpcpp): Update to 0.6.5.

* gnu/packages/mpd.scm (mpd-mpc): Update to 0.27.

* gnu/packages/mpd.scm (mpd): Update to 0.19.10.

* gnu/packages/mpd.scm (libmpdclient): Update to 2.10.

* gnu/packages/gnome.scm (totem): New variable.

* gnu/system/file-systems.scm (%container-file-systems): New variable.

* gnu/build/linux-container.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.
* .dir-locals.el: Add Scheme indent rules for 'call-with-container', and
  'container-excursion'.
* tests/containers.scm: New file.
* Makefile.am (SCM_TESTS): Add it.

* gnu/build/file-systems.scm: Import (guix build syscalls) when 'mount' is not
  defined.
* gnu/system.scm (operating-system-activation-script): Include (guix build
  syscalls) module in derivation.

* gnu/packages/bioinformatics.scm (preseq)[arguments]: Move phase
  "use-samtools-headers" after "enter-dir" phase.

* doc/guix.texi (Daemon Offload Setup): Mention that we're using lsh.  Mention
  GUILE_LOAD_PATH settings on the target machine.  Explain that machines must
  authorize each other.

* guix/scripts/offload.scm (<build-machine>)[ssh-options]: New field.
  (remote-pipe): Use it.
  (send-files): Likewise.

* gnu/packages/gstreamer.scm (gst-plugins-ugly): New variable.

* gnu/packages/video.scm (ffmpeg)[inputs]: Add libx264.
  [arguments]: Add "--enable-libx264" to configure-flags.

* gnu/packages/video.scm (libx264): New variable.

* gnu/packages/libreoffice.scm (libreoffice): Update to 5.0.0.2.

* gnu/packages/libreoffice.scm (libwps): Update to 0.4.0.

* gnu/packages/libreoffice.scm (libmwaw): Update to 0.3.5.

* gnu/packages/libreoffice.scm (libetonyek): Update to 0.1.3.
  [native-inputs]: Add glm and mdds.

* gnu/packages/boost.scm (mdds): Update to 0.12.1.

* gnu/packages/gnome.scm (grilo-plugins): New variable.

* gnu/packages/gnome.scm (grilo): New variable.

* gnu/packages/patches/wpa-supplicant-2015-5-fix.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/admin.scm (wpa-supplicant-light)[source]: Add patch.

* gnu/packages/boost.scm (boost): Update to 1.58.0.

* gnu/packages/bioinformatics.scm (preseq): New variable.
* gnu/packages/patches/preseq-1.0.2-install-to-PREFIX.patch: New file.
* gnu/packages/patches/preseq-1.0.2-link-with-libbam.patch: New file.
* gnu-system.am (dist_patch_DATA): Add them.

* gnu/packages/bioinformatics.scm (samtools)[arguments]: Add phase
  "install-headers" to install header files.

* tests/elpa.scm: Change 'nil->empty' to 'ensure-list' in the whole file.

* 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.