Index: rats_patch.h
===================================================================
--- rats_patch.h	(revision 927)
+++ rats_patch.h	(revision 928)
@@ -1,6 +1,12 @@
 #include "global.h"
+
+/* Allocate and append a patch line to the patch list */
 void rats_patch_append(PCBTypePtr pcb, rats_patch_op_t op, const char *id, const char *a1, const char *a2);
 
+/* Same as rats_patch_append() but also optimize previous entries so that
+   redundant entries are removed */
+void rats_patch_append_optimize(PCBTypePtr pcb, rats_patch_op_t op, const char *id, const char *a1, const char *a2);
+
 /* Create [NETLIST_EDITED] from [NETLIST_INPUT] applying the patch */
 void rats_patch_make_edited(PCBTypePtr pcb);