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# ===========================================================================
# 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 src/common/compat_getopt.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.
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