91f2653b71
Bug 1200 - Crash with invalid DISPLAY * clutter/clutter-main.c: Use the ClutterBackend wrapper API instead of directly checking the class structure. * clutter/glx/clutter-backend-glx.c: Return the correct value in case of failure. * clutter/x11/clutter-backend-x11.c: Bail out if XOpenDisplay() failed.