[EDIT] FILE: lex.m4

## Replacement for AC_PROG_LEX. -*- Autoconf -*- ## by Alexandre Oliva <oliva@dcc.unicamp.br> # Copyright (C) 1998-2018 Free Software Foundation, Inc. # # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # AM_PROG_LEX # ----------- # Autoconf leaves LEX=: if lex or flex can't be found. Change that to a # "missing" invocation, for better error output. AC_DEFUN([AM_PROG_LEX], [AC_PREREQ([2.50])dnl AC_REQUIRE([AM_MISSING_HAS_RUN])dnl AC_REQUIRE([AC_PROG_LEX])dnl if test "$LEX" = :; then LEX=${am_missing_run}flex fi])
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