Index: trunk/src_plugins/lib_polyhelp/polyhelp.c
===================================================================
--- trunk/src_plugins/lib_polyhelp/polyhelp.c	(revision 28410)
+++ trunk/src_plugins/lib_polyhelp/polyhelp.c	(revision 28411)
@@ -75,18 +75,28 @@
 
 pcb_cardinal_t pcb_pline_to_lines(pcb_layer_t *dst, const pcb_pline_t *src, pcb_coord_t thickness, pcb_coord_t clearance, pcb_flag_t flags)
 {
-	const pcb_vnode_t *v, *n;
-	pcb_pline_t *track = pcb_pline_dup_offset(src, -((thickness/2)+1));
 	pcb_cardinal_t cnt = 0;
+	vtp0_t tracks;
+	long i;
 
-	v = &track->head;
-	do {
-		n = v->next;
-		pcb_line_new(dst, v->point[0], v->point[1], n->point[0], n->point[1], thickness, clearance, flags);
-		cnt++;
+	vtp0_init(&tracks);
+	pcb_pline_dup_offsets(&tracks, src, -((thickness/2)+1));
+
+	for(i = 0; i < tracks.used; i++) {
+		const pcb_vnode_t *v, *n;
+		pcb_pline_t *track = tracks.array[i];
+
+		v = &track->head;
+		do {
+			n = v->next;
+			pcb_line_new(dst, v->point[0], v->point[1], n->point[0], n->point[1], thickness, clearance, flags);
+			cnt++;
+		}
+		while((v = v->next) != &track->head);
+		pcb_poly_contour_del(&track);
 	}
-	while((v = v->next) != &track->head);
-	pcb_poly_contour_del(&track);
+
+	vtp0_uninit(&tracks);
 	return cnt;
 }