* doc/guix.texi (System Installation): Remove encrypted disks and swap
  from the limitations.

* gnu/services/base.scm (swap-service): New procedure.
* gnu/system.scm (<operating-system>)[swap-devices]: New field.
  (swap-services): New procedure.
  (essential-services): Use it.

* guix/build/syscalls.scm (swapon, swapoff): New procedures.
* tests/syscalls.scm ("swapon, ENOENT/EPERM", "swapoff, EINVAL/EPERM"):
  New tests.

* doc/guix.texi (Mapped Devices): New subsection.

* gnu/system/file-systems.scm (<mapped-device-type>): New record type.
  (<mapped-device>)[command]: Remove field.
  [type]: New field.
* gnu/services/base.scm (device-mapping-service): Rename 'command'
  parameter to 'open'.  Add 'close' parameter and honor it.
* gnu/system.scm (luks-device-mapping): Rename to...
  (open-luks-device): ... this.
  (close-luks-device): New procedure.
  (luks-device-mapping): New variable.
  (device-mapping-services): Get the type of MD, and pass its 'open' and
  'close' fields to 'device-mapping-service'.

* guix/scripts/pull.scm (unpack): Remove 'store' parameter.  Rewrite
  using 'gexp->derivation'.
  (what-to-build, indirect-root-added, build-and-install): New
  procedures.
  (guix-pull): Use it.

Reported by Luis Souto Graña <luissoutobueu@gmail.com>.

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

Reported by Federico Beffa <beffa@ieee.org>.

* gnu/packages/libcanberra.scm (libcanberra)[source]: Update URI.

* gnu/services/networking.scm (dhcp-client-service): Pass '-nw' to
  'dhclient'.

* gnu/services/base.scm (file-system-service)[stop]: Add 'chdir' call.

* gnu/services/base.scm (user-processes-service): Add 'wait' loop.

* gnu/services/base.scm (udev-service): Add 'respawn?' field.

* gnu/services.scm (<service>)[stop]: Change default value.

* test-env.in: Unset 'LANGUAGE', set 'LC_MESSAGE'.

Reported by Federico Beffa <beffa@ieee.org>.

* guix/utils.scm (call-with-temporary-output-file): Prepend $TMPDIR or
  /tmp to TEMPLATE.

* gnu/system/shadow.scm (%base-groups): Add "input" group.

* gnu/packages/guile.scm (guile-charting): Patch Makefile.in files to
  install to guile/site/2.0.  Move GUILE-CAIRO to 'propagated-inputs'.

This prevented PulseAudio from starting on systems without Console-Kit.

* gnu/packages/pulseaudio.scm (pulseaudio)[source]: Add snippet.

* gnu/packages/ocaml.scm (opam): New variable.

* gnu/packages/algebra.scm (arb): New variable.

* gnu/packages/pdf.scm (mupdf): Remove article from synopsis.

* gnu/packages/pdf.scm (mupdf): New variable.
* gnu/packages/patches/mupdf-buildsystem-fix.patch: New file.
* gnu-system.am (dist_patch_DATA): Added the above patch.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

* gnu/packages/image.scm (openjpeg): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

* gnu/packages/image.scm (jbig2dec): New variable.
* gnu/packages/patches/jbig2dec-ignore-testtest.patch: New file.
* gnu-system.am (dist_patch_DATA): Added the above patch.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

* gnu/services/networking.scm (dhcp-client-service): New procedure.
* doc/guix.texi (Networking Services): Document it.

* guix/build/syscalls.scm (network-interfaces): Update docstring.
  (%interface-line): New variable.
  (all-network-interfaces): New procedure.
* tests/syscalls.scm ("all-network-interfaces"): New test.
  ("network-interfaces"): Change to make sure the result is a subset
  of (all-network-interfaces).

* guix/build/syscalls.scm (SIOCGIFFLAGS, IFF_UP, IFF_BROADCAST,
  IFF_LOOPBACK, IF_NAMESIZE): New variables.
  (network-interface-flags, loopback-network-interface?): New
  procedures.
* tests/syscalls.scm ("network-interface-flags",
  "loopback-network-interface?"): New tests.

* guix/build/syscalls.scm (SIOCGIFCONF, ifconf-struct,
  ifreq-struct-size): New variables.
  (%ioctl, bytevector->string-list, network-interfaces): New
  procedures.
* tests/syscalls.scm ("network-interfaces"): New test.

Reported by DusXMT on #guix.

* gnu/services/networking.scm (static-networking-service): Add
  'requirement' field.  Change 'documentation' to be a string literal.

Previously 'guix pull' would just fail with "No such file or directory"
if ~/.config didn't already exist.

* guix/ui.scm (config-directory): Use 'mkdir-p' instead of 'mkdir'.
  Change the 'catch' handler to expect errors different from EEXIST.

* doc/guix.texi (User Accounts): Add the "audio", "video", and "cdrom"
  groups in the example.

* gnu/packages/algebra.scm (flint): New variable.

Remove leading articles and trailing periods in package synopses.

These are mostly two-space-after-end-of-sentence-period changes
resulting from commit 3a09e1d2.

* build-aux/sync-descriptions.scm (escape-quotes): New procedure.
  Use it.  Add quotes around the proposed description.

* gnu/system.scm (%base-packages): Change 'udev' to 'eudev'.
* gnu/services/base.scm (udev-service): Change #:udev to default to
  'eudev'.

* gnu/services/base.scm (udev-service): Adjust 'start' method to support
  eudev in addition to udev.

* gnu/system.scm (%base-packages): Add DIFFUTILS.