Index: trunk/src/plugins/rt_topo/crbs.h
===================================================================
--- trunk/src/plugins/rt_topo/crbs.h	(revision 1334)
+++ trunk/src/plugins/rt_topo/crbs.h	(revision 1335)
@@ -37,6 +37,9 @@
 	grbs_point_t *gpt;
 } crbs_point_t;
 
+typedef struct crbs_edge_s {
+	long nets;
+} crbs_edge_t;
 
 typedef struct {
 	rtrnd_t *ctx;
Index: trunk/src/plugins/rt_topo/crbs_cdt.c
===================================================================
--- trunk/src/plugins/rt_topo/crbs_cdt.c	(revision 1334)
+++ trunk/src/plugins/rt_topo/crbs_cdt.c	(revision 1335)
@@ -73,6 +73,16 @@
 				;
 		}
 	}
+
+
+	for(n = 0; n < cdt->edges.used; n++) {
+		edge_t *e = cdt->edges.array[n];
+#warning TODO: use libualloc here
+		crbs_edge_t *ce = malloc(sizeof(crbs_edge_t));
+		e->data = ce;
+
+		memset(ce, 0, sizeof(ce));
+	}
 }
 
 void rt_topo_crbs_cdt_draw(rtrnd_t *ctx, rtrnd_layer_t *ly_out, cdt_t *cdt)