Index: generic/xotclInt.h
===================================================================
diff -u -r6915324f4c3e871b459e7ff46943bbb6ad251c75 -r3300590b6a62f2bc22bada01ebf191753d88aa08
--- generic/xotclInt.h	(.../xotclInt.h)	(revision 6915324f4c3e871b459e7ff46943bbb6ad251c75)
+++ generic/xotclInt.h	(.../xotclInt.h)	(revision 3300590b6a62f2bc22bada01ebf191753d88aa08)
@@ -429,7 +429,12 @@
 #define XOTCL_ARG_REQUIRED		     0x0001
 #define XOTCL_ARG_SUBST_DEFAULT		     0x0002
 #define XOTCL_ARG_INITCMD		     0x0004
+#define XOTCL_ARG_RELATION		     0x0100
 
+/* disallowed options */
+#define XOTCL_ARG_METHOD_PARAMETER	     (XOTCL_ARG_RELATION)  /* maybe add ARG_INITCMD */
+#define XOTCL_ARG_OBJECT_PARAMETER	     0
+
 /* flags for parseContext */
 #define XOTCL_PC_MUST_DECR		     0x0001