Index: trunk/src/plugins/rt_topo/crbs.c
===================================================================
--- trunk/src/plugins/rt_topo/crbs.c	(revision 1353)
+++ trunk/src/plugins/rt_topo/crbs.c	(revision 1354)
@@ -100,6 +100,9 @@
 	grbs_2net_t *res;
 	g2d_cline_t cl;
 
+#warning TODO: remove this callback
+	return NULL;
+
 	cl.p1.x = x1; cl.p1.y = y1;
 	cl.p2.x = x2; cl.p2.y = y2;