This doesn't include egl support, just dri support.
v2: - when gbm is set to 'auto', only build if a dri driver is also
enabled
- Fix conditional to check for x11 modules with vulkan as well as
with dri drivers
v3: - Set pkgconfig libraries.private value
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>