glx: Add missing glproto dependency for gallium-xlib glx
Cc: mesa-stable@lists.freedesktop.org Cc: Bruce Cherniak <bruce.cherniak@intel.com> Signed-of-by:Chuck Atkins <chuck.atkins@kitware.com> Reviewed-by:
Bruce Cherniak <bruce.cherniak@intel.com> Reviewed-by:
Emil Velikov <emil.velikov@collabora.com> (cherry picked from commit e9a4ec4b)