Fix compilation error after recent merge

source/blender/makesdna/DNA_scene_types.h

@@ -1681,6 +1681,8 @@ typedef struct Scene {
 	/* Physics simulation settings */
 	struct PhysicsSettings physics_settings;
 
+	void *pad6;
+
 	uint64_t customdata_mask;	/* XXX. runtime flag for drawing, actually belongs in the window, only used by BKE_object_handle_update() */
 	uint64_t customdata_mask_modal; /* XXX. same as above but for temp operator use (gl renders) */