1## Replacement for AC_PROG_LEX.                            -*-  Autoconf -*-
2## by Alexandre Oliva <oliva@dcc.unicamp.br>
3# Copyright (C) 1998-2021 Free Software Foundation, Inc.
4#
5# This file is free software; the Free Software Foundation
6# gives unlimited permission to copy and/or distribute it,
7# with or without modifications, as long as this notice is preserved.
8
9# AM_PROG_LEX
10# -----------
11# Autoconf leaves LEX=: if lex or flex can't be found.  Change that to a
12# "missing" invocation, for better error output.
13AC_DEFUN([AM_PROG_LEX],
14[AC_PREREQ([2.50])dnl
15AC_REQUIRE([AM_MISSING_HAS_RUN])dnl
16AC_REQUIRE([AC_PROG_LEX])dnl
17if test "$LEX" = :; then
18  LEX=${am_missing_run}flex
19fi])
20