| 1 | ## Replacement for AC_PROG_LEX. -*- Autoconf -*-
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| 2 | ## by Alexandre Oliva <oliva@dcc.unicamp.br>
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| 3 |
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| 4 | # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003
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| 5 | # Free Software Foundation, Inc.
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| 6 |
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| 7 | # This program is free software; you can redistribute it and/or modify
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| 8 | # it under the terms of the GNU General Public License as published by
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| 9 | # the Free Software Foundation; either version 2, or (at your option)
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| 10 | # any later version.
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| 11 |
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| 12 | # This program is distributed in the hope that it will be useful,
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| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | # GNU General Public License for more details.
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| 16 |
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| 17 | # You should have received a copy of the GNU General Public License
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| 18 | # along with this program; if not, write to the Free Software
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| 19 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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| 20 | # 02111-1307, USA.
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| 21 |
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| 22 | # serial 4
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| 23 |
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| 24 | # AM_PROG_LEX
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| 25 | # -----------
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| 26 | # Autoconf leaves LEX=: if lex or flex can't be found. Change that to a
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| 27 | # "missing" invocation, for better error output.
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| 28 | AC_DEFUN([AM_PROG_LEX],
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| 29 | [AC_PREREQ(2.50)dnl
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| 30 | AC_REQUIRE([AM_MISSING_HAS_RUN])dnl
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| 31 | AC_REQUIRE([AC_PROG_LEX])dnl
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| 32 | if test "$LEX" = :; then
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| 33 | LEX=${am_missing_run}flex
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| 34 | fi])
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