Index: obj_rat.h
===================================================================
--- obj_rat.h	(revision 21837)
+++ obj_rat.h	(revision 21838)
@@ -33,10 +33,11 @@
 
 #include <genlist/gendlist.h>
 #include "obj_common.h"
+#include "layer_grp.h"
 
 struct pcb_rat_line_s {          /* a rat-line */
 	PCB_ANYLINEFIELDS;
-	pcb_cardinal_t group1, group2; /* the layer group each point is on */
+	pcb_layergrp_id_t group1, group2; /* the layer group each point is on */
 	gdl_elem_t link;               /* an arc is in a list on a design */
 };
 
@@ -48,7 +49,7 @@
 void pcb_rat_unreg(pcb_rat_t *rat);
 
 /* if id is <= 0, allocate a new id */
-pcb_rat_t *pcb_rat_new(pcb_data_t *Data, long int id, pcb_coord_t X1, pcb_coord_t Y1, pcb_coord_t X2, pcb_coord_t Y2, pcb_cardinal_t group1, pcb_cardinal_t group2, pcb_coord_t Thickness, pcb_flag_t Flags);
+pcb_rat_t *pcb_rat_new(pcb_data_t *Data, long int id, pcb_coord_t X1, pcb_coord_t Y1, pcb_coord_t X2, pcb_coord_t Y2, pcb_layergrp_id_t group1, pcb_layergrp_id_t group2, pcb_coord_t Thickness, pcb_flag_t Flags);
 pcb_bool pcb_rats_destroy(pcb_bool selected);
 
 #endif