gnu: linux-libre: Update to 4.13.8.

* gnu/packages/linux.scm (%linux-libre-version): Update to 4.13.8.
(%linux-libre-hash): Update hash.

gnu: linux-libre@4.9: Update to 4.9.57.

* gnu/packages/linux.scm (linux-libre-4.9): Update to 4.9.57.

gnu: linux-libre@4.4: Update to 4.4.93.

* gnu/packages/linux.scm (linux-libre-4.4): Update to 4.4.93.

gnu: linux-libre@4.1: Update to 4.1.45.

* gnu/packages/linux.scm (linux-libre-4.1): Update to 4.1.45.
Remove patch that is now included upstream.

gnu: yadifa: Update to 2.2.6.

* gnu/packages/dns.scm (yadifa): Update to 2.2.6.

gnu: Add zathura-pdf-mupdf.

* gnu/packages/pdf.scm (zathura-pdf-mupdf): New variable.

gnu: qemu: Build with libjpeg-turbo.

This gets rid of a compile warning since SPICE uses libjpeg-turbo, and reduces
the closure size by 0.8MiB.

* gnu/packages/virtualization.scm (qemu)[inputs]: Replace LIBJPEG-8 with
LIBJPEG-TURBO.

gnu: emacs: Fix Man default C header file search path.

* gnu/packages/emacs.scm (emacs): Make sure Man looks for C header files in
  the right places.

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

gnu: speex: Build and install 'speexdec' and 'speexenc'.

* gnu/packages/xiph.scm (speex)[native-inputs]: Add 'pkg-config'.
[inputs]: Add 'speexdsp'.

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

gnu: virt-manager: Fix default URI check.

Allows virt-manager to connect to qemu://system by default.

* gnu/packages/virtualization.scm (virt-manager)[arguments]<#:phases>: Add
'fix-default-uri.

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

gnu: virt-manager: Enable statistics graphing support.

* gnu/packages/virtualization.scm (virt-manager)[inputs]: Add
python2-pycairo.

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

gnu: qemu: Add OpenGL support.

Enables virgl support with spice 0.13+.

* gnu/packages/virtualization.scm (qemu)[arguments]<#:configure-flags>: Add
--enable-opengl.
[inputs]: Add libdrm and libepoxy.
(qemu-minimal)[inputs]: Remove libdrm and libepoxy.

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

gnu: virt-manager: Enable spice-gtk support.

* gnu/packages/virtualization.scm (virt-manager)[inputs]: Add spice-gtk.

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

gnu: spice-gtk: Enable GObject introspection support.

Allows virt-manager to use the spice-gtk widget.

* gnu/packages/spice.scm (spice-gtk)[inputs]: Add gobject-introspection.
[arguments]<#:configure-flags>: Add --enable-introspection.

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

gnu: qemu: Enable spice usb redirection support.

* gnu/packages/virtualization.scm (qemu)[arguments]<#:configure-flags>: New
argument.
[inputs]: Add usbredir.
(qemu-minimal)[arguments]<#:configure-flags>: Restrict them even when they are
set by qemu.
[inputs]: Remove usbredir.

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

gnu: python-hy: Update to 0.13.0.

* gnu/packages/python.scm (python-hy): Update to 0.13.0.

gnu: Order module imports in (gnu packages mate) alphabetically.

* gnu/packages/mate.scm: Order module imports alphabetically.

Signed-off-by: Ricardo Wurmus <rekado@elephly.net>

gnu: Add dirvish.

* gnu/packages/backup.scm (dirvish): New variable.

Signed-off-by: Ricardo Wurmus <rekado@elephly.net>

gnu: Add perl-libtime-period.

* gnu/packages/perl.scm (perl-libtime-period): New variable.

gnu: Add perl-libtime-parsedate.

* gnu/packages/perl.scm (perl-libtime-parsedate): New variable.

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