gnu: wpa-supplicant: Install DBUS access configuration.

* gnu/packages/admin.scm (wpa-supplicant): Install DBUS configuration file.

gnu: global: Update to 6.4.

* gnu/packages/code.scm (global): Update to 6.4.

gnu: tor: Update to 0.2.5.11.

* gnu/packages/tor.scm (tor): Update to 0.2.5.11.

gnu: nano: Update to 2.4.0.

* gnu/packages/nano.scm (nano): Update to 2.4.0.

services: guix-service: Add service documentation.

* gnu/services/base.scm (guix-service): Add 'documentation' field to the
  service.

services: Add 'lirc-service'.

* gnu/services/lirc.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.
* doc/guix.texi (Various Services): New node.  Document 'lirc-service'.

gnu: Add LIRC.

* gnu/packages/lirc.scm: New file.
* gnu/packages/patches/lirc-localstatedir.patch: New file.
* gnu-system.am: Add them.

gnu: Add IBus.

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

gnu: openblas: build for all supported CPUs.

* gnu/packages/maths.scm (openblas)[arguments]: Add "DYNAMIC_ARCH=1" to
  make flags.  Remove "#:substitutable? #f".

gnu: openssh: Update to 6.8p1.

* gnu/packages/ssh.scm (openssh): Update to 6.8p1.  Make 'patch-tests'
  substitution more robust.

gnu: Add gnome-mines.

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

gnu: icecat: Apply fixes for CVE-2015-{0817,0818} and other selected bugs.

* gnu/packages/patches/icecat-CVE-2015-0817.patch,
  gnu/packages/patches/icecat-CVE-2015-0818-pt1.patch,
  gnu/packages/patches/icecat-CVE-2015-0818-pt2.patch,
  gnu/packages/patches/icecat-bug-1127780.patch,
  gnu/packages/patches/icecat-bug-1144991.patch,
  gnu/packages/patches/icecat-bug-1145870.patch,
  gnu/packages/patches/icecat-bug-1146339.patch: New files.
* gnu-system.am (dist_patch_DATA): Add them.
* gnu/packages/gnuzilla.scm (icecat): Add patches.

substitute: Rename cache directory from "substitute-binary" to "substitute".

* guix/scripts/substitute.scm (%narinfo-cache-directory): Change
  "substitute-binary" to "substitute".
* tests/store.scm ("substitute query"): Likewise.
* tests/substitute.scm (call-with-narinfo): Likewise.

Rename 'guix substitute-binary' to 'guix substitute'.

* guix/scripts/substitute-binary.scm: Rename to...
* guix/scripts/substitute.scm: ... this.  Adjust module name, entry
  point, comments, and help string accordingly.
* nix/scripts/substitute-binary.in: Rename to...
* nix/scripts/substitute.in: ... this.
* pre-inst-env.in (NIX_SUBSTITUTERS): Adjust accordingly.
* tests/substitute-binary.scm: Rename to...
* tests/substitute.scm: ... this.  Adjust references to (guix scripts
  substitute) accordingly.
* guix/ui.scm (show-guix-help)[internal?]: Change "substitute-binary" to
  "substitute".
* Makefile.am (MODULES, SCM_TESTS): Adjust to file renames.
* daemon.am (nodist_pkglibexec_SCRIPTS): Likewise.
* config-daemon.ac: Likewise.
* guix/tests.scm (call-with-derivation-narinfo): Adjust comments and
  docstring.

derivations: 'substitution-oracle' now ignores sub-trees that are valid.

Before that, "guix build qt", when only qt itself is missing, would lead
'substitution-oracle' to call 'substitutable-paths' with 318 items.
Now, this is down to 6 items, because it doesn't ask about prerequisites
that are already valid.

* guix/derivations.scm (substitution-oracle)[valid-input?,
  dependencies]: New procedures.
  Use 'dependencies' and remove call to 'remove'.

derivations: Add a 'cut?' parameter to 'derivation-prerequisites'.

* guix/derivations.scm (valid-derivation-input?): New procedure.
  (derivation-prerequisites): Add 'cut?' parameter and honor it.
* tests/derivations.scm ("derivation-prerequisites and
  derivation-input-is-valid?"): New test.

gnu: python: Do not use patchelf.

* gnu/packages/python.scm (python-2): Add rpath for lib directory of output to
  LDFLAGS.  Remove 'patchelf' from inputs.  Remove #:modules and
  #:imported-modules from arguments.  Remove 'add-lib-to-runpath' phase.
  (python): Do not add #:modules to inherited package arguments.

derivations: Don't invoke the substituter when an item is already in store.

Fixes <http://bugs.gnu.org/20188>.
Reported by Mark H Weaver <mhw@netris.org>.

* guix/derivations.scm (substitution-oracle): Add 'valid?' procedure.
  Remove 'valid?' items from PATHS.

gnu: calibre: Add a patch to avoid automatic checking for updates.

* gnu/packages/patches/calibre-no-updates-dialog.patch: New file.
* gnu-system.am (dist_patch_DATA): Register patch.
* gnu/packages/ebook.scm (calibre): Use patch.

gnu: Add pbtranscript-tofu.

* gnu/packages/bioinformatics.scm (pbtranscript-tofu): New variable.