While wresting with labltk and 4.05 I noticed an backwards incompatible
change in labltk.git (986e116 "Fix for ocaml 4.06") and in ocaml.git
(cc7ad5650a "Get rid of BYTECC and NATIVECC"). What is the rationale to
break external users of BYTECC/NATIVECC? Perhaps labltk shouldnt have
used these variables in the first place. But if their usage is legitime,
why the needless breakage?

Olaf