Index: find_geo.c
===================================================================
--- find_geo.c	(revision 27703)
+++ find_geo.c	(revision 27704)
@@ -318,7 +318,7 @@
 		return pcb_true;
 
 	/* expensive test: the rat can end on any contour point */
-	for(pa = pcb_poly_island_first((pcb_any_obj_t *)polygon, &it); pa != NULL; pa = pcb_poly_island_next(&it)) {
+	for(pa = pcb_poly_island_first(polygon, &it); pa != NULL; pa = pcb_poly_island_next(&it)) {
 		pcb_coord_t x, y;
 		pcb_pline_t *pl;
 		int go;