This package isn't yet in oe-core, but GTK+ 3.6 depends on it so will be here at
some point.
(From OE-Core rev: 8c46ec2edc0197b32d32e0f27d5b60271338b600)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>