Index: generic/nsfInt.h
===================================================================
diff -u -N -r3f46f0b1c73ec20e706c241e4c544117050a97f4 -rd9746cd559eef3076fe2db1f34116fb45f8ad989
--- generic/nsfInt.h	(.../nsfInt.h)	(revision 3f46f0b1c73ec20e706c241e4c544117050a97f4)
+++ generic/nsfInt.h	(.../nsfInt.h)	(revision d9746cd559eef3076fe2db1f34116fb45f8ad989)
@@ -1161,7 +1161,7 @@
 #endif
 
 EXTERN int NsfGetClassFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
-			      NsfClass **classPtr, int withUnknown)
+			      NsfClass **classPtr, bool withUnknown)
   nonnull(1) nonnull(2) nonnull(3);
 
 EXTERN int NsfObjWrongArgs(Tcl_Interp *interp, const char *msg,