syscalls: 'statfs' explicitly binds 'statfs64'.

* guix/build/syscalls.scm (statfs): Explicitly bind "statfs64".

syscalls: statfs: Add missing 'mount-flags' field of 'struct statfs'.

* guix/build/syscalls.scm (<file-system>)[mount-flags]: New field.
[spare2]: Remove.
(%statfs): Likewise.

gnu: poppler: Fix CVE-2015-8868.

* gnu/packages/pdf.scm (poppler)[replacement]: New field.
(poppler/fixed): New variable.
* gnu/packages/patches/poppler-CVE-2015-8868.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.

gnu: ncmpcpp: Remove bootstrapping phase.

* gnu/packages/mpd.scm (ncmpcpp)[arguments]: Remove 'autogen' phase.
[native-inputs]: Remove autoconf, automake, and libtool.

gnu: Add muscle.

* gnu/packages/bioinformatics.scm (muscle): New variable.

gnu: subversion: Update to 1.8.16 [fixes CVE-2016-{2167,2168}].

* gnu/packages/version-control.scm (subversion): Update to 1.8.16.

gnu: Add uhttpmock.

* gnu/packages/web.scm (uhttpmock): New variable.

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

gnu: ruby-hashery: Disable failing test.

* gnu/packages/ruby.scm (ruby-hashery)[arguments]: Remove failing
test.

gnu: ruby: Update to 2.3.1.

* gnu/packages/ruby.scm (ruby): Update to 2.3.1.
[origin] Add symlink patch.
* gnu/packages/patches/ruby-symlinkfix.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add patch.

gnu: Add Fossil.

* gnu/packages/version-control.scm (fossil): New variable.
* gnu/packages/patches/fossil-test-fixes.patch: New patch.
* gnu/local.mk (dist_patch_DATA): Add it.

gnu: eigen: Update to 3.2.8.

* gnu/packages/algebra.scm (eigen): Update to 3.2.8.

nls: Add Simplified Chinese translation.

* po/guix/zh_CN.po: New file.
* po/guix/LINGUAS: Add 'zh_CN'.

gnu: Add hplip.

* gnu/packages/cups.scm (hplip): New variable.

Co-authored-by: Ludovic Courtès <ludo@gnu.org>

guix system: Reduce size of image produced for 'vm' action.

This reduces the size of the image produced by 'guix system vm' from
26 MiB to 9 MiB.

* gnu/system/vm.scm (system-qemu-image/shared-store):
(system-qemu-image/shared-store-script): Change the default
value of #:disk-image-size to 30 MiB when not FULL-BOOT?.
* guix/scripts/system.scm (system-derivation-for-action): Likewise for
the 'vm' action.

gnu: giac-xcas: Update to 1.2.2-41.

* gnu/packages/algebra.scm (giac-xcas): Update to 1.2.2-41.
[inputs]: Add libxinerama.

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

gnu: webkitgtk: Update to 2.12.2.

* gnu/packages/webkit.scm (webkitgtk): Update to 2.12.2.

gnu: python-celery: Rearrange inputs.

* gnu/packages/python.scm (python-celery)[propagated-inputs]: Move
python-pytz, python-billiard, python-kombu ...
[inputs]: ... to here. Add python-amqp, python-anyjson.

gnu: python-rauth: Rearrange inputs.

* gnu/packages/python.scm (python-rauth)[native-inputs]: Remove it.
[propagated-inputs]: Move python-requests ...
[inputs]: ... to here.
[properties]: Define python2-variant.
(python2-rauth): Build with 'strip-python2-variant'.
[native-inputs]: Add python2-setuptools.

gnu: libtasn1: Replace 4.7 with 4.8 [fixes CVE-2016-4008].

* gnu/packages/tls.scm (libtasn1)[replacement]: New field.
(libtasn1/fixed): New variable.

lint: 'check-vulnerabilities' follows package replacements.

* guix/scripts/lint.scm (check-vulnerabilities): Check the replacement
of PACKAGE.
* tests/lint.scm ("cve: patched vulnerability in replacement"): New test.