gnu: gnutls: Update to 3.4.4.1.

* gnu/packages/patches/gnutls-doc-fix.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/tls.scm (gnutls): Update to 3.4.4.1.  Add patch.
  [arguments]: Add 'delete-prebuilt-unfixed-info-file' phase.
  In 'move-doc' phase, copy man pages to the correct directory.
  [native-inputs]: Add 'texinfo'.

gnu: libmtp: Update to 1.1.9.

* gnu/packages/libusb.scm (libmtp): Update to 1.1.9.

gnu: inconsolata: Fix typo in variable name.

* gnu/packages/fonts.scm (font-incosolata): Rename to...
  (font-inconsolata): ... this.

gnu: Add fuse-exfat.

* gnu/packages/linux.scm (fuse-exfat): New variable.

gnu: Add exfat-utils.

* gnu/packages/mtools.scm (exfat-utils): New variable.

bash completion: Cache the list of subcommands and available packages.

* etc/completion/bash/guix (_guix_complete_available_package): Cache the list
  of available packages in '_guix_available_packages' and use it.
  (_guix_complete): Cache the list of subcommands in '_guix_subcommands' and
  use it.

profiles: Remove duplicate entries in 'etc/profile'.

Reported by Andy Wingo
at <http://lists.gnu.org/archive/html/guix-devel/2015-08/msg00109.html>.

* guix/profiles.scm (profile-derivation)[builder]: Delete duplicates in
  SEARCH-PATHS.

gnu: Add tinc.

* gnu/packages/vpn.scm (tinc): New variable.

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

gnu: pavucontrol: Update to 3.0.

* gnu/packages/pulseaudio.scm (pavucontrol): Update to 3.0.
* gnu/packages/patches/pavucontrol-sigsegv.patch: Remove.
* gnu-system.am (dist_patch_DATA): Remove it.

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

gnu: Add GeoClue desktop service.

* gnu/services/desktop.scm (bool): New top-level helper.
  (upower-configuration-file): Use top-level `bool'.
  (geoclue-application): New public function.
  (%standard-geoclue-applications): New public variable.
  (geoclue-service): New public variable.
  (%desktop-services): Add GeoClue.  Add a comment about activation.
* doc/guix.texi (Desktop Services): Document the GeoClue service.

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

gnu: dmd: Apply 'make-forkexec-constructor' patch.

Proposed by Andy Wingo <wingo@igalia.com>.

* gnu/packages/admin.scm (dmd): Add 'base-version' and 'patch-level'
  variables.
  [source]: Use 'base-version' instead of 'version'.  Add 'patches' field.

gnu: Add font-inconsolata

* gnu/packages/fonts.scm (font-inconsolata): New variable.

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

gnu: Add font-ubuntu.

* gnu/packages/fonts/scm (font-ubuntu): New variable.

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

doc: Add missing gawk dependency to hello recipe.

* doc/guix.texi (Defining Packages): Add gawk dependency.

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

gnu: libinput: Update to 0.21.0.

* gnu/packages/freedesktop.scm (libinput): Update to 0.21.0.

guix: Add Sleepycat license.

* guix/licenses.scm (sleepycat): New variable.

gnu: Add figlet.

* gnu/packages/figlet.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.

gnu: Add pwgen.

* gnu/packages/password-utils.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.

scripts: package: Add --install-from-file option.

* guix/scripts/package.scm (show-help): Add help text for --install-from-file
  option.
  (%options): Add --install-from-file option.
* tests/guix-package.sh: Test it.
* doc/guix.texi ("invoking guix package"): Document it.
* doc/package-hello.scm: New file.
* doc.am (EXTRA_DIST): Add it.

size: Get the item's size from the daemon rather than compute it.

This removes all I/O, which obviously makes things faster.

* guix/scripts/size.scm (file-size, store-item-exists?): Remove.
  (query-path-info*): New procedure.
  (file-size*): Rename to...
  (file-size): ... this; adjust caller.  Use 'query-path-info*' instead of
  'file-size'.