Don't know about lex/yacc, but I used flex/bison under RTEMS and had no problems. Keith Keith Outwater Senior Staff Engineer Microvision, Inc. (425) 415-6693 > Anyone have any good/bad experiences with lex and yacc under RTEMS? > > Are there any portability issues that one must consider with the code > that lex and yacc generate? > > thanks, > glenco > >