Index: generic/xotclInt.h
===================================================================
diff -u -r05f4b42f7615ea410b7ac33093f5b8382ce7e8c5 -r5a0750dc422574bc5ae91d9b58c64b8f5713d405
--- generic/xotclInt.h	(.../xotclInt.h)	(revision 05f4b42f7615ea410b7ac33093f5b8382ce7e8c5)
+++ generic/xotclInt.h	(.../xotclInt.h)	(revision 5a0750dc422574bc5ae91d9b58c64b8f5713d405)
@@ -512,7 +512,7 @@
   XOTE_METHOD, XOTE_OBJECT, XOTE_SETTER, 
   XOTE_GUARD_OPTION, XOTE___UNKNOWN__, 
   /* Patly redefined Tcl commands; leave them together at the end */
-  XOTE_EXPR, XOTE_FORMAT, XOTE_INFO, XOTE_INTERP, XOTE_RENAME, XOTE_SUBST
+  XOTE_EXPR, XOTE_FORMAT, XOTE_INFO, XOTE_INTERP, XOTE_IS, XOTE_RENAME, XOTE_SUBST
 } XOTclGlobalNames;
 #if !defined(XOTCL_C)
 extern char *XOTclGlobalStrings[];
@@ -535,7 +535,7 @@
   "method", "object", "setter", 
   "-guard", "__unknown__",
   /* tcl commands */
-  "expr", "format", "info", "interp", "rename", "subst",
+  "expr", "format", "info", "interp", "::tcl::string::is", "rename", "subst",
 };
 #endif