gnu: Add fizmo.

* gnu/packages/games.scm (fizmo): New variable.

gnu: r: Apply patch to fix linking against R.

* gnu/packages/patches/r-fix-15899.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/statistics.scm (r)[source]: Use it.

gnu: zathura: Update to 0.3.3.

* gnu/packages/pdf.scm (zathura): Update to 0.3.3.

gnu: girara: Update to 0.2.4.

* gnu/packages/gtk.scm (girara): Update to 0.2.4.

gnu: gconf: Propagate input glib.

* gnu/packages/gnome.scm (gconf): Propagate input glib.
  (gnome-vfs): Drop input glib.
  (libgnome): Drop propagated input glib.
* gnu/packages/ibus.scm (ibus): Drop input glib.

gnu: Add lpsolve.

* gnu/packages/maths.scm (lpsolve): New variable.

gnu: bitlbee: Update to 3.4.

* gnu/packages/patches/bitlbee-configure-doc-fix.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/messaging.scm (bitlbee): Update to 3.4.  Add patch.
  [inputs]: Remove 'zlib'.

Revert "gnu: mozjs: Mark as unsupported on mips64el-linux."

This reverts commit 4bfeb0ca74fca75febe62b8e059b0c5a6ddd622f.

Revert "doc: Suggest how to preserve /var and /root owner and permissions."

This reverts commit 8c3a5d7059a24e9c6d7bf14be296169cdcf06ad6, which is no
longer needed due to commit b2a5fa594e66b9d929df11fc7a38e4b367a00a5e.

install: Omit /, /root, and /var from binary tarball.

* gnu/system/install.scm (self-contained-tarball): Pass
  "./root/.guix-profile", "./var/guix", and "./gnu" to 'tar' command instead
  of ".".

package: Add --manifest option.

* guix/scripts/package.scm (show-help): Add help text.
  (%options): Add manifest option.
  (guix-package): Add manifest option handler.
* doc/guix.texi ("Invoking guix package"): Document it.
* tests/guix-package.sh: Add test.

profiles: Add 'packages->manifest' procedure.

* guix/profiles.scm (packages->manifest): New procedure.

ui: Factorize user-provided Scheme file loading.

* guix/ui.scm (make-user-module, load*): New procedures.
* guix/scripts/system.scm (%user-module): Define in terms of
  'make-user-module'.
  (read-operating-system): Define in terms of load*'.

gnu: Add sfxr.

* gnu/packages/game-development.scm (sfxr): New variable.

gnu: openblas: Disable DYNAMIC_ARCH on MIPS.

* gnu/packages/maths.scm (openblas)[arguments]: Do not pass DYNAMIC_ARCH when
  building for MIPS.  Also make non-substitutable for MIPS.

daemon: Correctly print substituter's stderr.

* nix/libstore/local-store.cc (LocalStore::getLineFromSubstituter): Reinstate
  commit 9ba0b8d.  Fixes a regression introduced in 2bb0490.

ftp-client: Throw when log-in fails.

* guix/ftp-client.scm (ftp-open): When '%ftp-listen' returns something
  different from 220, throw instead of writing an error message.

guix package: Add optional argument to --search-paths.

* guix/scripts/package.scm (search-path-environment-variables): Add #:kind
  parameter.  Pass it to 'environment-variable-definition'.
  (display-search-paths): Add #:kind parameter and pass it to
  'search-path-environment-variables'.
  (%options): Add an optional parameter for "--search-paths".
  (guix-package)[process-query]: Handle it.
* tests/guix-package-net.sh: Adjust existing test.
* tests/guix-package.sh: Adjust existing tests and add new test.
* doc/guix.texi (Invoking guix package): Document it.

guix package: --search-paths mentions $PATH.

* guix/scripts/package.scm (search-path-environment-variables): Add $PATH to
  SEARCH-PATHS.

gnu: feh: Update to 2.13.

* gnu/packages/feh.scm (feh): Update to 2.13.