gnu: Add xfce4-settings.
* gnu/packages/xfce.scm (xfce4-settings): New variable.
gnu: Add xfce4-session.
* gnu/packages/xfce.scm (xfce4-session): New variable.
gnu: Add xfce4-appfinder.
* gnu/packages/xfce.scm (xfce4-appfinder): New variable.
gnu: Add xfce4-panel.
* gnu/packages/xfce.scm (xfce4-panel): New variable.
gnu: Add tumbler.
* gnu/packages/xfce.scm (tumbler): New variable.
gnu: Add garcon.
* gnu/packages/xfce.scm (garcon): New variable.
gnu: Add exo.
* gnu/packages/xfce.scm (exo): New variable.
gnu: Add libxfce4ui.
* gnu/packages/xfce.scm (libxfce4ui): New variable.
gnu: Add xfconf.
* gnu/packages/xfce.scm (xfconf): New variable.
gnu: Add libxfce4util.
* gnu/packages/xfce.scm (libxfce4util): New variable.
gnu: Add gtk-xfce-engine.
* gnu/packages/xfce.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.
gnu: freeipmi: Update to 1.4.7.
* gnu/packages/freeipmi.scm (freeipmi): Update to 1.4.7.
gnu: wget: Update to 1.16.1.
* gnu/packages/wget.scm (wget): Update to 1.16.1.
gnu: gdk-pixbuf: Propagate glib and libpng.
* gnu/packages/gtk.scm (gdk-pixbuf): Move glib and libpng to
'propagated-inputs'.
gnu: libxcomposite: Propagate inputs.
* gnu/packages/xorg.scm (libxcomposite): Move all existing 'inputs'
to 'propagated-inputs'.
gnu: Add cffi.
* gnu/packages/python.scm (python-cffi, python2-cffi): New variables.
gnu: Add BBDB.
* gnu/packages/emacs.scm (bbdb): New variable.
gnu: emacs: Use 'glib-or-gtk-build-system'.
Fixes <http://bugs.gnu.org/19138>.
Reported by Andreas Enge <andreas@enge.fr>.
* gnu/packages/emacs.scm (emacs)[build-system]: Switch to
GLIB-OR-GTK-BUILD-SYSTEM.
(emacs-no-x-toolkit): Add 'build-system' field.
gnu: Move unclutter to (gnu packages xdisorg).
* gnu/packages/unclutter.scm: Remove.
(unclutter) Move to...
* gnu/packages/xdisorg.scm (unclutter): ... here. New variable.
* gnu-system.am (GNU_SYSTEM_MODULES): Remove unclutter file name.