libX11 et al are checked for at confgure time and tests optionally built. As
these don't get installed we don't want to add build dependencies, but the
non-determinism means that builds can fail.
(From OE-Core rev: cc4de34c94a89831c2aac56b9fb78612cdde0099)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>