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--- a/UnixLib.def.m2cc
+++ b/UnixLib.def.m2cc
@@ -23,6 +23,8 @@
   (*   GM2   : Parameter werden fuer den GNU Modula-2 Compilter gesetzt     *)
   (*   MOCKA : Parameter werden fuer den MOCKA        Compilter gesetzt     *)
   (*                                                                        *)
+  (* There are there versions contained for XDS, GNU and Mocak complier.    *)
+  (* You can create them by the m2cc command line shown.                    *)
   (*------------------------------------------------------------------------*)
   (* Last change:                                                           *)
   (*                                                                        *)