* gnu/services/colord.scm, gnu/services/dbus.scm,
  gnu/services/upower.scm: Remove.
* gnu/services/desktop.scm: New file, with contents taken from the above
  files.
* gnu-system.am (GNU_SYSTEM_MODULES): Adjust accordingly.
* doc/guix.texi (Desktop Services): New section.
  (Various Services): Move colord-service and upower-service from
  here to "Desktop Services".

* gnu/packages/scheme.scm (inputs): Move patchelf input to...
  (native-inputs): ...here.  New field.
  (arguments)[phases]: Use augment-rpath for patch-rpath phase.

* gnu/packages/perl.scm (perl-json-any)[source]: Fix typo.

* gnu/packages/webkit.scm (webkitgtk): Move library install path from lib64 to
 lib.

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

* gnu/packages/wxwidgets.scm (wxwidgets-2)[arguments]: Add #:make-flags,
  as for WXWIDGETS.

* gnu/packages/gnuzilla.scm (mozjs)[supported-systems]: New field.

* gnu/packages/gnupg.scm (gpgme)[inputs]: Change to GNUPG-2.0.

* guix/search-paths.scm (search-path-definition): New procedure.
* guix/scripts/environment.scm (for-each-search-path): Rename to...
  (evaluate-input-search-paths): ... this.  Remove 'proc' and 'pure?'
  parameters, and return directly the list of search-path/value pairs.
  (create-environment): Use 'for-each' and 'evaluate-input-search-paths'
  instead of 'for-each-search-path'.
  (show-search-paths): Use 'for-each', 'search-path-definition', and
  'evaluate-search-paths' instead of 'for-each-search-path'.

This allows 'guix environment' to correctly handle non-directory
and/or pattern search-path specifications, such as that for
'XML_CATALOG_FILES'.

* guix/scripts/environment.scm (for-each-search-path): Use
  'evaluate-search-paths' instead of 'search-path-as-list' & co.

* guix/search-paths.scm ($PATH): New variable.
* guix/scripts/environment.scm (for-each-search-path): Use it.

* guix/search-paths.scm (evaluate-search-paths): Change 'directory' to
  'directories', and adjust 'search-path-as-list' accordingly.
* guix/scripts/package.scm (search-path-environment-variables): Adjust
  call accordingly.

Reported by John Darrington.

* guix/gnu-maintenance.scm (gnu-package?)[mirror-type]: Add "gnome" to
  the list of GNU mirrors.  Return #f for "cran".

* guix/scripts/environment.scm: Use (guix search-paths).  Fixes a
  regression introduced in e89431bf.

* gnu/packages/bioinformatics.scm (vcftools): Explicitly set CFLAGS to
  remove "-m64" flag.

* gnu/packages/patches/fltk-shared-lib-defines.patch: New patch.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/fltk.scm (source)[patches]: New field.

* gnu/packages/audio.scm (ardour)[arguments]: Add a build phase to add all
  library output directories to the rpath using linker flags.

* gnu/packages/linux.scm (bluez): New variable.

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

* gnu/packages/gl.scm (soil): New variable.

* guix/records.scm (make-syntactic-constructor): Wrap in 'eval-when'.

* guix/profiles.scm (sexp->manifest): Use 'raise' instead of 'error'.

* guix/search-paths.scm (evaluate-search-paths): Return
  specification/value pairs instead of variable/value pairs.
* guix/scripts/package.scm (search-path-environment-variables): Adjust
  accordingly.  Pass #:separator to 'environment-variable-definition'.

* guix/search-paths.scm (environment-variable-definition): New variable.
* guix/scripts/package.scm (search-path-environment-variables): Use it.

* guix/scripts/package.scm (with-null-error-port,
  evaluate-search-paths): Move to...
* guix/search-paths.scm: ... here.
* guix/utils.scm (string-tokenize*): Move to...
* guix/search-paths.scm: ... here.
* tests/utils.scm ("string-tokenize*"): Adjust accordingly.

* guix/packages.scm (<search-path-specification>,
  search-path-specification->sexp, sexp->search-path-specification):
  Move to...
* guix/search-paths.scm: ... here.  New file.
* Makefile.am (MODULES): Add it.
* guix/build-system/cmake.scm, guix/build-system/glib-or-gtk.scm,
  guix/build-system/gnu.scm, guix/build-system/haskell.scm,
  guix/build-system/perl.scm, guix/build-system/python.scm,
  guix/build-system/ruby.scm, guix/build-system/waf.scm,
  guix/profiles.scm, guix/scripts/package.scm: Use it.

* gnu/packages/textutils.scm (markdown): New variable.

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

* guix/scripts/substitute.scm (%narinfo-ttl): Increase to 36h.

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

* guix/scripts/build.scm (show-help)[--sources]: Make indentation
  consistent with other long options.

* gnu/packages/patches/curl-support-capath-on-gnutls-conf.patch,
  gnu/packages/patches/curl-support-capath-on-gnutls.patch: Remove files.
* gnu-system.am (dist_patch_DATA): Remove them.
* gnu/packages/curl.scm (curl): Update to 7.42.1.  Remove patches.

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

Reported by Christopher A. Webber <cwebber@dustycloud.org>.

* doc/guix.texi (The Store Monad): Reintroduce 'mlet' in 'sh-symlink'
  example.  Move the simplified version below.  Explain that the 'store'
  parameter is threaded.

* doc/guix.texi (Build Environment Setup): Use 'groupadd --system'.

* doc/guix.texi (Binary Installation): Specifically refer to
  group/account creation, and add an item for substitutes.  Mention
  verifiability.

* gnu/packages/bioinformatics.scm (bamtools): Add a pre-configure phase
  setting $LDFLAGS to set the rpath to $out/lib/bamtools.

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

* gnu/packages/bioinformatics.scm (samtools-0.1): New variable.

* gnu/packages/bioinformatics.scm (samtools)[arguments]: Add phase
  "install-library" to install the libbam.a library.

* gnu/packages/bioinformatics.scm (samtools)[arguments]: Remove
  patch-makefile-curses phase, use make-flags instead.

* gnu/packages/patches/gcc-5.0-libvtv-runpath.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/gcc.scm (gcc-5.1)[source]: Use it.