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coreutils/m4/getopt.m4
2004-10-18 05:06:47 +00:00

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# getopt.m4 serial 4
dnl Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License. As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl that contains a configuration script generated by Autoconf, under
dnl the same distribution terms as the rest of that program.
# The getopt module assume you want GNU getopt, with getopt_long etc,
# rather than vanilla POSIX getopt. This means your your code should
# always include <getopt.h> for the getopt prototypes.
AC_DEFUN([gl_GETOPT_SUBSTITUTE],
[
GETOPT_H=getopt.h
AC_LIBOBJ([getopt])
AC_LIBOBJ([getopt1])
AC_DEFINE([optarg], [rpl_optarg],
[Define to rpl_optarg if the replacement variable should be used.])
AC_DEFINE([optind], [rpl_optind],
[Define to rpl_optind if the replacement variable should be used.])
AC_DEFINE([optopt], [rpl_optopt],
[Define to rpl_optopt if the replacement variable should be used.])
AC_DEFINE([getopt], [rpl_getopt],
[Define to rpl_getopt if the replacement function should be used.])
AC_DEFINE([getopt_long], [rpl_getopt_long],
[Define to rpl_getopt_long if the replacement function should be used.])
AC_DEFINE([getopt_long_only], [rpl_getopt_long_only],
[Define to rpl_getopt_long_only if the replacement function should be used.])
AC_SUBST([GETOPT_H])
])
AC_DEFUN([gl_GETOPT],
[
gl_PREREQ_GETOPT
GETOPT_H=
AC_CHECK_HEADERS([getopt.h], [], [GETOPT_H=getopt.h])
AC_CHECK_FUNCS([getopt_long_only], [], [GETOPT_H=getopt.h])
dnl BSD getopt_long uses an incompatible method to reset option processing,
dnl and (as of 2004-10-15) mishandles optional option-arguments.
AC_CHECK_DECL([optreset], [GETOPT_H=getopt.h], [], [#include <getopt.h>])
if test -n "$GETOPT_H"; then
gl_GETOPT_SUBSTITUTE
fi
])
# Prerequisites of lib/getopt*.
AC_DEFUN([gl_PREREQ_GETOPT], [:])