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| 1 | ## Replacement for AC_PROG_LEX. -*- Autoconf -*-
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| 2 | ## by Alexandre Oliva <[email protected]>
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| 3 | # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2005
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| 4 | # Free Software Foundation, Inc.
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| 5 | #
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| 6 | # This file is free software; the Free Software Foundation
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| 7 | # gives unlimited permission to copy and/or distribute it,
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| 8 | # with or without modifications, as long as this notice is preserved.
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| 9 |
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| 10 | # serial 5
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| 11 |
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| 12 | # AM_PROG_LEX
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| 13 | # -----------
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| 14 | # Autoconf leaves LEX=: if lex or flex can't be found. Change that to a
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| 15 | # "missing" invocation, for better error output.
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| 16 | AC_DEFUN([AM_PROG_LEX],
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| 17 | [AC_PREREQ(2.50)dnl
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| 18 | AC_REQUIRE([AM_MISSING_HAS_RUN])dnl
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| 19 | AC_REQUIRE([AC_PROG_LEX])dnl
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| 20 | if test "$LEX" = :; then
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| 21 | LEX=${am_missing_run}flex
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| 22 | fi])
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