Index: generic/xotclInt.h
===================================================================
diff -u -recc8a110c338877202b900868da32eb8dcd561ad -r120493167df5c1acf6449830ec9815f45015132f
--- generic/xotclInt.h	(.../xotclInt.h)	(revision ecc8a110c338877202b900868da32eb8dcd561ad)
+++ generic/xotclInt.h	(.../xotclInt.h)	(revision 120493167df5c1acf6449830ec9815f45015132f)
@@ -442,9 +442,15 @@
 
 typedef struct XOTclNonposArgs {
   argDefinition *ifd;
+  int ifdSize;
   Tcl_Obj *slotObj;
 } XOTclNonposArgs;
 
+typedef struct XOTclParsedInterfaceDefinition {
+  argDefinition *ifd;
+  int possibleUnknowns;
+} XOTclParsedInterfaceDefinition;
+
 typedef struct XOTclObjectOpt {
   XOTclAssertionStore *assertions;
   XOTclCmdList *filters;