|
- # ===========================================================================
- # https://www.gnu.org/software/autoconf-archive/ax_func_getopt_long.html
- # ===========================================================================
- #
- # SYNOPSIS
- #
- # AX_FUNC_GETOPT_LONG
- #
- # DESCRIPTION
- #
- # Check for getopt_long support.
- #
- # This assume that the standard getopt.h file (from GNU libc) is available
- # as lib/gnugetopt.h. If needed, this file will be linked as getopt.h, but
- # we want to default to the system's getopt.h file. (See
- # http://sources.redhat.com/ml/automake/2000-09/msg00041.html for an
- # explanation about why using the system's getopt.h file is important.)
- #
- # LICENSE
- #
- # Copyright (c) 2008 Alexandre Duret-Lutz <adl@gnu.org>
- #
- # This program is free software; you can redistribute it and/or modify it
- # under the terms of the GNU General Public License as published by the
- # Free Software Foundation; either version 2 of the License, or (at your
- # option) any later version.
- #
- # This program is distributed in the hope that it will be useful, but
- # WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
- # Public License for more details.
- #
- # You should have received a copy of the GNU General Public License along
- # with this program. If not, see <https://www.gnu.org/licenses/>.
- #
- # As a special exception, the respective Autoconf Macro's copyright owner
- # gives unlimited permission to copy, distribute and modify the configure
- # scripts that are the output of Autoconf when processing the Macro. You
- # need not follow the terms of the GNU General Public License when using
- # or distributing such scripts, even though portions of the text of the
- # Macro appear in them. The GNU General Public License (GPL) does govern
- # all other use of the material that constitutes the Autoconf Macro.
- #
- # This special exception to the GPL applies to versions of the Autoconf
- # Macro released by the Autoconf Archive. When you make and distribute a
- # modified version of the Autoconf Macro, you may extend this special
- # exception to the GPL to apply to your modified version as well.
-
- #serial 6
-
- AU_ALIAS([ADL_FUNC_GETOPT_LONG], [AX_FUNC_GETOPT_LONG])
- AC_DEFUN([AX_FUNC_GETOPT_LONG],
- [AC_PREREQ(2.49)dnl
- # clean out junk possibly left behind by a previous configuration
- rm -f lib/getopt.h
- # Check for getopt_long support
- AC_CHECK_HEADERS([getopt.h])
- AC_CHECK_FUNCS([getopt_long],,
- [# FreeBSD has a gnugetopt library for this
- AC_CHECK_LIB([gnugetopt],[getopt_long],[AC_DEFINE([HAVE_GETOPT_LONG])],
- [# use the GNU replacement
- AC_LIBOBJ(getopt)
- AC_LIBOBJ(getopt1)
- AC_CONFIG_LINKS([lib/getopt.h:lib/gnugetopt.h])])])])
|
