Index: operation.h
===================================================================
--- operation.h	(revision 28892)
+++ operation.h	(revision 28893)
@@ -153,6 +153,8 @@
 	void *(*ArcPoint)(pcb_opctx_t *ctx, pcb_layer_t *, pcb_arc_t *, int *end_id);
 	void *(*subc)(pcb_opctx_t *ctx, pcb_subc_t *);
 	void *(*padstack)(pcb_opctx_t *ctx, pcb_pstk_t *);
+
+	unsigned int extobj_inhibit_regen:1;
 } pcb_opfunc_t;
 
 void *pcb_object_operation(pcb_opfunc_t *F, pcb_opctx_t *ctx, int Type, void *Ptr1, void *Ptr2, void *Ptr3);