gnu: giac-xcas: Update to 1.2.2-59

* gnu/packages/algebra.scm (giac-xcas): Update to 1.2.2-59.

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

gnu: asymptote: Update to 2.38

* gnu/packages/plotutils.scm (asymptote): Update to 2.38.

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

utils: 'with-atomic-file-output' closes the port upon exception.

Previously it could have left the file descriptor open.

* guix/utils.scm (with-atomic-file-output): Call 'close-port' in handler.

syscalls: Use 'syscall->procedure' everywhere.

* guix/build/syscalls.scm (mkdtemp!, setns, %ioctl, network-interfaces):
(free-ifaddrs): Use 'syscall->procedure'.

utils: 'with-atomic-file-output' calls 'fdatasync'.

Suggested by Danny Milosavljevic <dannym@scratchpost.org>
at <https://lists.gnu.org/archive/html/guix-devel/2016-06/msg00456.html>.

* guix/build/syscalls.scm (fdatasync): New procedure.
* guix/utils.scm (with-atomic-file-output): Use it.  Use 'close-port'
instead of 'close'.

gnu: Add python-tables.

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

gnu: piranha: Update to 1.2.1.

* gnu/packages/bioinformatics.scm (piranha): Update to 1.2.1.

serialization: Add #:select? parameter to 'write-file'.

* guix/serialization.scm (write-file): Add #:select? parameter and honor it.
* tests/nar.scm ("write-file #:select? + restore-file"): New test.

gnu: unison: Install unison-fsmonitor.

* gnu/packages/ocaml.scm (unison)[arguments]: Add 'install-fsmonitor'
phase.

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

profiles: Make sure hook derivations fail upon error.

Reported at
<https://lists.gnu.org/archive/html/guix-devel/2016-06/msg00368.html>.

* guix/profiles.scm (info-dir-file)[build]: Add explicit call to
'exit'.
* guix/profiles.scm (ghc-package-cache-file)[build]: Likewise.
* guix/profiles.scm (xdg-desktop-database)[build]: Likewise.
* guix/profiles.scm (xdg-mime-database)[build]: Likewise.

doc: Fix default value of #:recursive? for 'local-file'.

* doc/guix.texi (G-Expressions): The #:recursive? parameter of
'local-file' defaults to #f.

gnu: Add emacs-rainbow-identifiers.

* gnu/packages/emacs.scm (emacs-rainbow-identifiers): New variable.

gnu: imagemagick: Update to 6.9.4-9.

* gnu/packages/imagemagick.scm (imagemagick): Update to 6.9.4-9.

gnu: manaplus: Update to 1.6.6.4.

* gnu/packages/games.scm (manaplus): Update to 1.6.6.4.

gnu: Add arc-icon-theme.

* gnu/packages/gnome.scm (arc-icon-theme): New variable.

gnu: Add moka-icon-theme.

* gnu/packages/gnome.scm (moka-icon-theme): New variable.

gnu: Add arc-theme.

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

gnu: wireshark: Update to 2.0.4 [security fixes].

Fixes CVE-2016-{5350, 5351, 5352, 5353, 5354, 5355, 5356, 5357, 5358, 5359}.

* gnu/packages/networking.scm (wireshark): Update to 2.0.4.

gnu: libmicrohttpd: Update to 0.9.50.

* gnu/packages/gnunet.scm (libmicrohttpd): Update to 0.9.50.

Signed-off-by: Leo Famulari <leo@famulari.name>

gnu: signify: Update to 18.

* gnu/packages/crypto.scm (signify): Update to 18.