gnu: gcl: Ensure gcc and binutils are available at runtime.

* gnu/packages/lisp.scm (gcl)[arguments]: Add -fgnu89-inline to CFLAGS.
Add GCC path to make-flags. Modify 'pre-conf' phase. Add 'wrap' phase.

gnu: webkitgtk: Update to 2.16.6 [security fixes].

Includes fixes for CVE-2017-7039, CVE-2017-7018, CVE-2017-7030, CVE-2017-7037,
CVE-2017-7034, CVE-2017-7055, CVE-2017-7056, CVE-2017-7064, CVE-2017-7061,
CVE-2017-7048, and CVE-2017-7046.

* gnu/packages/webkit.scm (webkitgtk): Update to 2.16.6.

system: Add a default '.guile' skeleton.

* gnu/system/shadow.scm (default-skeletons): Add ".guile".

Add 'guix weather'.

* guix/scripts/weather.scm: New file.
* Makefile.am (MODULES): Add it.
* doc/guix.texi (Substitutes, Invoking guix publish): Mention "guix
weather".
(Invoking guix weather): New node.

Co-authored-by: Ricardo Wurmus <rekado@elephly.net>

gnu: xterm: Update to 330.

* gnu/packages/xorg.scm (xterm): Update to 330.

gnu: dialog: Update to 1.3-20170509.

* gnu/packages/ncurses.scm (dialog): Update to 1.3-20170509.

gnu: opus: Update to 1.2.1.

* gnu/packages/xiph.scm (opus): Update to 1.2.1.
[source]: Use new source URL.

gnu: gnome: Add deja-dup.

* gnu/packages/gnome.scm (deja-dup): New variable.
* gnu/packages/patches/deja-dup-use-ref-keyword-for-iter.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add patch file entry.

import: cpan: Updater returns a list of URLs.

* guix/import/cpan.scm (latest-release): Return a list in the 'urls'
field of 'upstream-source'.

gnu: guix: Update snapshot.

* gnu/packages/package-management.scm (guix): Update to f1ddfe4.

gnu: python-flaky: Fix Texinfo markup in description.

* gnu/packages/python.scm (python-flaky)[description]: Escape "@".

gnu: isc-dhcp: Update bundled bind to 9.9.10-P3.

This fixes a regression introduced in the fix for CVE-2017-3142, in BIND
9.9.10-P2, commit ecb232bdfcb2718de5944bcf4d9c4e288ec41519.

See 'CHANGELOG' in the source distribution for more information.

* gnu/packages/admin.scm (isc-dhcp): Update bundled bind to 9.9.10-P3.

gnu: bind: Update to 9.11.1-P3.

This fixes a regression introduced in the fix for CVE-2017-3142, in BIND
9.11.1-P2, commit faa1369e3cb72bda4ba8b63029d0ad780df9cf78.

See 'CHANGELOG' in the source distribution for more information.

* gnu/packages/dns.scm (isc-bind): Update to 9.11.1-P3.

gnu: ncurses/gpm: Move to (gnu packages ncurses).

This is needed to avoid compilation problems caused by the cyclic dependency
between (gnu packages ncurses) and (gnu packages linux).

* gnu/packages/linux.scm (ncurses/gpm): Move to ...
* gnu/packages/ncurses.scm (ncurses/gpm): ... here.  Fix misleading
indentation.  Add (gnu packages linux) to the module imports.

gnu: Add support for aarch64's compiled kernel.

* gnu/packages/linux.scm (linux-libre)[arguments]: Add to the regex to
find and install the aarch64-linux kernel.
* gnu/system.scm (system-linux-image-file-name): Add entry for aarch64.

gnu: Add xf86-video-freedreno.

* gnu/packages/xorg.scm (xf86-video-freedreno): New variable.

gnu: Add u-boot-odroid-c2.

* gnu/packages/bootloaders.scm (u-boot-odroid-c2): New variable.

gnu: u-boot: Update to 2017.07.

* gnu/packages/bootloaders.scm (u-boot): Update to 2017.07.

gnu: tevent: Update to 0.9.33.

* gnu/packages/samba.scm (tevent): Update to 0.9.33.

gnu: talloc: Update to 2.1.10.

* gnu/packages/samba.scm (talloc): Update to 2.1.10.