Index: data.h
===================================================================
--- data.h	(revision 12116)
+++ data.h	(revision 12117)
@@ -46,6 +46,7 @@
 	int LayerN;                        /* number of layers in this board */
 
 	pcb_vtpadstack_proto_t ps_protos;
+	unsigned long ps_next_grp;         /* next group number to allocate; if 0, have to figure */
 
 	padstacklist_t padstack;
 	pinlist_t Via;