gtk-doc requires gdk/x11/gdkx.h which is not available if gdk x11 backend is disabled
(due to jku's patch).
(From OE-Core rev:
d1e9927ba145036cb56d7512026df1a8c21a85dd)
Signed-off-by: Alexander Kanavin <alexander.kanavin@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
--disable-cups \
--disable-colord \
WAYLAND_PROTOCOLS_SYSROOT_DIR=${STAGING_DIR}/${MACHINE} \
+ ${@bb.utils.contains("DISTRO_FEATURES", "x11", "", "--disable-gtk-doc", d)} \
"
EXTRA_OECONF[vardepsexclude] = "MACHINE"