gtk+: version installed gtk-update-icon-cache and use alternatives
With GTK+ 3 being added soon we'll have potentially two providers of
gtk-update-icon-cache. Append a version to the binary and use
update-alternatives to ensure that the unversioned name works.
For gtk+-native the alternatives won't take effect, so install a symlink
explicitly. This will break if we have a gtk+3-native but we can fix that if
and when that happens.
Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
