Index: obj_common.c
===================================================================
--- obj_common.c	(revision 5280)
+++ obj_common.c	(revision 5281)
@@ -59,7 +59,7 @@
 		*res = *(pcb_box_t *)Ptr3;
 		return 0;
 	case PCB_TYPE_ARC_POINT:
-/*		abort();*/
+		return pcb_obj_ui_arc_point_bbox(Type, Ptr1, Ptr2, Ptr3, res);
 	default:
 		pcb_message(PCB_MSG_DEFAULT, "Request for bounding box of unsupported type %d\n", Type);
 		*res = *(pcb_box_t *)Ptr2;