Lines Matching refs:flex

635 dnl Check for flex, default to lex
636 dnl Require flex 2.4 or higher
638 dnl Default to lex/yacc if both flex and bison are not available
640 dnl If we're using flex and bison, pass -P to flex and -p to bison
643 dnl If we're not using flex and bison, don't pass those options
648 dnl some unknown reason, choose to use --without-flex and
664 dnl	$3 (optional flex and bison -P prefix)
667     [AC_ARG_WITH(flex, [  --without-flex          don't use flex])  optwith
672 	    AC_CHECK_PROGS($1, flex, lex)
674     if test "$$1" = flex ; then
676 	    AC_MSG_CHECKING(for flex 2.4 or higher)
678 		if flex -V >/dev/null 2>&1; then
686 		    AC_MSG_WARN(ignoring obsolete flex executable ($s))
699 	    AC_MSG_WARN(don't have both flex and bison; reverting to lex/yacc)
703     if test "$$1" = flex -a -n "$3" ; then