Index: data.h
===================================================================
--- data.h	(revision 7781)
+++ data.h	(revision 7782)
@@ -52,11 +52,13 @@
 	ratlist_t Rat;
 };
 
+#define pcb_max_group(pcb) ((pcb)->LayerGroups.len)
 
-/* DO NOT USE these two macros, they are not PCB-safe */
+/* DO NOT USE this macro, it is not PCB-safe */
 #define pcb_max_layer (PCB->Data->LayerN)
-#define pcb_max_group (PCB->LayerGroups.len)
 
+
+
 extern pcb_buffer_t pcb_buffers[PCB_MAX_BUFFER];
 extern int pcb_added_lines;
 extern int pcb_layer_stack[PCB_MAX_LAYER];