* doc/guix.texi (The Store): Mention "store items" and the database
location.  Add note on the store's immutability.

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

Co-authored-by: Andreas Enge <andreas@enge.fr>

* gnu/packages/libreoffice.scm (libreoffice)[arguments]: Enable parallel
  build.

Fixes <http://bugs.gnu.org/22650>.
Reported by myglc2 <myglc2@gmail.com>.

* gnu/system.scm (operating-system-etc-service)[profile]: Invoke
'umask'.

Fixes <http://bugs.gnu.org/19772>.
Reported by Andrei Osipov <andrspv@gmail.com>.

* guix/scripts/build.scm (show-help, %options): Add --quiet.
(guix-build): Parameterize 'current-build-output-port' accordingly.
* doc/guix.texi (Invoking guix build): Use it in example.
(Additional Build Options): Document it.

Fixes a thinko introduced in 1b846da8
that would lead to a backtrace when looking for an unknown package.

* gnu/packages.scm (%find-package): Correct logic when checking for
FALLBACK?.

Fixes a typo introduced in 1b846da8 that
would lead to a backtrace when using the deprecated syntax.

* gnu/packages.scm (%find-package): Turn the first argument to
'call-with-values' into a thunk.  Use #:select instead of '@' to select
the right 'package-name->name+version' procedure.

* gnu/packages.scm (%find-package): Clarify message; remove trailing
period.

Fixes <http://bugs.gnu.org/22802>.
Reported by Jookia <166291@gmail.com>.

* guix/scripts/system.scm (install-grub*): Prepend TARGET to GC-ROOT.

Fixes <http://bugs.gnu.org/22933

>.

* emacs/guix-main.scm (package-location-string): Rewrite to handle the
case where 'packages-by-name' returns the empty list.

Co-authored-by: Mathieu Lirzin <mthl@gnu.org>

* gnu/packages/patches/jasper-CVE-2016-1557.patch,
gnu/packages/patches/jasper-CVE-2016-2089.patch,
gnu/packages/patches/jasper-CVE-2016-2116.patch: New files.
* gnu-system.am (dist_patch_DATA): Add them.
* gnu/packages/image.scm (jasper)[source]: Add patches.

* gnu/packages/libreoffice.scm (libreoffice): Update to 5.0.5.2.

* gnu/packages/linux.scm (linux-libre): Update to 4.1.19.

* gnu/packages/linux.scm (linux-libre): Update to 4.4.4.

This reduces the wall-clock time of

  guix environment gnutls --pure -E true

by ~35%.

* guix/packages.scm (%graft-cache): New variable.
(input-graft): Use 'cached' to cache to %GRAFT-CACHE.

This reduces the wall-clock time of

  guix environment gnutls --pure -E true

by ~25%.

* guix/packages.scm (%bag-cache): New variable.
(package->bag): Use 'cached' to cache things to %BAG-CACHE.

* guix/packages.scm (cache): Rename to...
  (cache!): ... this.  Add 'cache' parameter, and use it.
  (cached): Add a rule to allow the cache to be specified.

* gnu/packages/gnome.scm (network-manager): Update to 1.0.10.
  (network-manager-applet): Likewise.
  (%network-manager-glib-duplicate-test-patch): Remove.

* gnu/packages/gnome.scm (network-manager): Add pre-configure phase.

* gnu/packages/freedesktop.scm (elogind): Update to 219.13.  Remove
  build fix that is no longer needed.  Update home page.

* gnu/system/file-systems.scm (%elogind-file-systems): Add elogind
  cgroup mount.

* gnu/packages/graphics.scm (blender): New variable.

* gnu/packages/gstreamer.scm (python-gst, python2-gst): New variables.

* gnu/packages/glib.scm (python-pygobject): Move glib and libffi to propagated-inputs.
(python2-pygobject)[inputs]: Remove glib and libffi.

* gnu/packages/glib.scm (python-pygobject)[native-search-paths]: Use the
same search paths as gobject-introspection.

* gnu/packages/gstreamer.scm (orc): Update to 0.4.25.

This allows using (PACKAGE OUTPUT) in the packages field.
Reported by Jan Nieuwenhuizen <janneke@gnu.org>.

* gnu/services.scm (packages->profile-entry): Use 'packages->manifest'.

Previously elogind was explicitly spawned by the Shepherd.  Now it is
activated by dbus-daemon on demand.

* gnu/packages/freedesktop.scm (elogind)[arguments]: Add
'fix-service-file' phase.
* gnu/services/desktop.scm (elogind-shepherd-service): Remove.
(elogind-dbus-service): New procedure.
(elogind-service-type): Do not extend SHEPHERD-ROOT-SERVICE-TYPE.  Use
'elogind-dbus-service' for DBUS-ROOT-SERVICE-TYPE.

This allows tests to run as expected even in the presence of
replacements among the bootstrap packages, such as Perl (commit
d8173f21).

* tests/cpan.scm: Add (%graft? #f).
* tests/derivations.scm: Likewise.
* tests/graph.scm: Likewise.
* tests/monads.scm: Likewise.
* tests/profiles.scm: Likewise.
* tests/gexp.scm: Likewise.
("gexp->derivation vs. grafts"): Explicitly reenable grafting before,
and disable it after, using 'set-grafting'.

Fixes a regression introduced in
1b846da8.

* guix/import/snix.scm: Use 'package-name->name+version' from (guix
build utils).

* gnu/packages/audio.scm (alsa-modular-synth)[arguments]: Add build
phase to separate linker flags.

* gnu/packages/audio.scm (alsa-modular-synth)[inputs]: Replace "qt-4"
with "qt".
[arguments]: Add configure flag to build with Qt 5.

Based on
<https://lists.gnu.org/archive/html/guix-devel/2016-03/msg00009.html>.

* doc/guix.texi (Security Updates): Explain how to check whether we're
using a grafted version.

Before that, 'references/substitutes' would assume that
'substitutable-path-info' would return things in the same order as its
arguments, which is not the case.  Thus, it would sometimes provide
incorrect reference information, occasionally leading to infinite
loop (because dependency information would denote cycles.)

Fixes <http://bugs.gnu.org/22914>.
Reported by Eric Bavier <ericbavier@openmailbox.org>.

* guix/store.scm (references/substitutes): Make ITEMS the first argument
of the loop; match on it.  Use 'any' to find a matching substitute.
(substitutable-path-info): Clarify docstring about ordering.

* gnu/packages/image.scm (vigra): Update to a git snapshot to fix build
  problems with the current python-numpy.

* gnu/packages/games.scm (einstein): New variable.
* gnu/packages/patches/einstein-build.patch: New file.
* gnu-system.am (dist_patch_DATA): Register patch.

* guix.texi: Correct typos and make minor changes.

* gnu/packages/audio.scm (jalv)[inputs]: Drop qt-4. It does not receive any
  upstream security updates, and Qt-4 support is marked as experimental in
  the jalv documentation.

The Perl replacement added in d8173f21 leads some tests to involve
grafting, which in turn triggers derivation builds that rebuild the
world.  Work around that.

* tests/packages.scm: Add call to '%graft?'.
("package-derivation, direct graft")
("package-cross-derivation, direct graft"): Comment out.

The time for:

  guix build inkscape -n --no-substitutes

goes down by 30% (in the presence of 3 replacements among all the
packages.)

* guix/grafts.scm (cumulative-grafts): Turn into a monadic procedure in
%STATE-MONAD.  Use the current state as a derivation-to-graft cache.
(graft-derivation): Call 'cumulative-grafts' within 'run-with-state'.