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.
gnu: Move scrot to (gnu packages xdisorg).
* gnu/packages/scrot.scm: Remove.
(scrot) Move to...
* gnu/packages/xdisorg.scm (scrot): ... here. New variable.
* gnu-system.am (GNU_SYSTEM_MODULES): Remove scrot file name.
gnu: Add wmctrl.
* gnu/packages/xdisorg.scm (wmctrl): New variable.
* gnu/packages/patches/wmctrl-64-fix.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
gnu: Add c-reduce.
* gnu/packages/debug.scm (c-reduce): New variable.
gnu: Add llvm and clang.
* gnu/packages/llvm.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.
gnu: Add perl-sys-cpu.
* gnu/packages/perl.scm (perl-sys-cpu): New variable.
gnu: Add perl-regexp-common.
* gnu/packages/perl.scm (perl-regexp-common): New variable.
gnu: Add perl-getopt-tabular.
* gnu/packages/perl.scm (perl-getopt-tabular): New variable.
gnu: Add perl-file-which.
* gnu/packages/perl.scm (perl-file-which): New variable.