Index: obj_subc.h
===================================================================
--- obj_subc.h	(revision 22686)
+++ obj_subc.h	(revision 22687)
@@ -165,7 +165,7 @@
 
 /* Replace dst with a copy of src in place (preserving location and orientation
    and attributes */
-pcb_subc_t *pcb_subc_replace(pcb_board_t *pcb, pcb_subc_t *dst, pcb_subc_t *src);
+pcb_subc_t *pcb_subc_replace(pcb_board_t *pcb, pcb_subc_t *dst, pcb_subc_t *src, pcb_bool add_undo);
 
 /*** loops ***/