I notice that on a computer without some version of lex installed, the AC_PROG_LEX macro assumes that some version of lex is installed. I would prefer that AC_PROG_LEX error out if lex is not installed. I think it's safe to assume that packages that use AC_PROG_LEX require lex to build. I'm willing to attempt to do the work myself it I knew that the patch would be accepted. Similarly for AC_PROG_YACC Any comments? _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf