gnu: Add Rakarrack.

* gnu/packages/audio.scm (rakarrack): New variable.

gnu: guitarix: Update to 0.34.0.

* gnu/packages/audio.scm (guitarix): Update to 0.34.0.
[source]: Remove patch.
[inputs]: Add webkitgtk/gtk+-2.
* gnu/packages/patches/guitarix-c++11: Remove file.
* gnu-system.am (dist_patch_DATA): Remove it.

gnu: jack-2: Fix jack_control script.

* gnu/packages/audio.scm (jack-2)[inputs]: Add python2-dbus.
[arguments]: Use python-2 and add build phase to wrap jack_control
Python script.

gnu: calf: Update tarball URL.

* gnu/packages/audio.scm (calf)[source]: Use tarball from new project
  website instead of sourceforge.

gnu: Adjust formatting as recommended by 'guix lint'.

* gnu/packages/aidc.scm (barcode, qrencode),
  gnu/packages/bash.scm (bash, bash-completion),
  gnu/packages/busybox.scm (busybox),
  gnu/packages/cdrom.scm (cdparanoia),
  gnu/packages/cmake.scm (cmake),
  gnu/packages/conkeror.scm (conkeror),
  gnu/packages/cook.scm (cook),
  gnu/packages/curl.scm (curl),
  gnu/packages/docbook.scm (docbook-xsl),
  gnu/packages/enlightenment.scm (enlightenment),
  gnu/packages/games.scm (abbaye),
  gnu/packages/geeqie.scm (exiv2),
  gnu/packages/gimp.scm (gegl),
  gnu/packages/gl.scm (glu, freeglut, ftgl),
  gnu/packages/glib.scm (glib),
  gnu/packages/gnome.scm (orbit2, gconf, geocode-glib),
  gnu/packages/gstreamer.scm (gstreamer, gst-plugins-base),
  gnu/packages/linux.scm (util-linux),
  gnu/packages/lisp.scm (gcl, ecl),
  gnu/packages/maths.scm (gnuplot, hdf5),
  gnu/packages/ssh.scm (dropbear),
  gnu/packages/web.scm (json-c): Remove tabulations and trailing
  white spaces or reformat to fit within 80 columns.
* gnu/packages/audio.scm (aubio),
  gnu/packages/emacs.scm (emacs-s),
  gnu/packages/engineering.scm (geda-gaf),
  gnu/packages/games.scm (dosbox),
  gnu/packages/gnome.scm (gusb),
  gnu/packages/gtk.scm (gtk+),
  gnu/packages/guile.scm (guile-wisp),
  gnu/packages/hurd.scm (hurd-headers),
  gnu/packages/wm.scm (i3-wm): Adjust synopsis or description.

gnu: ardour: Update to 4.4.

* gnu/packages/audio.scm (ardour): Update to 4.4.

gnu: csound: Link against libmvec on x86_64.

* gnu/packages/audio.scm (csound)[arguments]: New field.

Merge branch 'dbus-update'

gnu: guitarix: Compile in C++11 mode.

* gnu/packages/patches/guitarix-c++11.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/audio.scm (guitarix)[source]: Use it.
  [arguments]: Add --cxxflags to #:configure-flags.

gnu: Remove ardour-3.

* gnu/packages/audio.scm (ardour-3): Remove variable.
  (ardour): Copy fields from the removed ardour-3 instead of inheriting
  from it.

gnu: ganv, pavucontrol, jalv: Fix build by compile with C++11.

* gnu/packages/audio.scm (jalv)[arguments],
  gnu/packages/gtk.scm (ganv)[arguments],
  gnu/packages/music.scm (non-sequencer)[arguments],
  gnu/packages/pulseaudio.scm (pavucontrol)[arguments]: Set
  'CXXFLAGS' to '-std=c++11'.

gnu: ardour: Build with '--cxx11'.

* gnu/packages/audio.scm (ardour, ardour-3)[arguments]: Add '--cxx11'
  as #:configure-flags.

Merge branch 'core-updates'

Merge branch 'master' into core-updates

gnu: Add XJackFreak.

* gnu/packages/audio.scm (xjackfreak): New variable.

Merge branch 'master' into core-updates

gnu: csound: Update to 6.05.

* gnu/packages/audio.scm (csound): Update to 6.05.

gnu: openal: Use full path to audio backend libraries.

* gnu/packages/audio.scm (openal)[arguments]: Add build phase to patch in the
  full paths to backend audio libraries.

Merge branch 'master' into core-updates

gnu: qsynth: Update to 0.4.0.

* gnu/packages/audio.scm (qsynth): Update to 0.4.0.