@node ax_func_getopt_long
@unnumberedsec ax_func_getopt_long

@majorheading Synopsis

@smallexample
AX_FUNC_GETOPT_LONG
@end smallexample

@majorheading 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.)

@majorheading Source Code

Download the
@uref{http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=blob_plain;f=m4/ax_func_getopt_long.m4,latest
version of @file{ax_func_getopt_long.m4}} or browse
@uref{http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=history;f=m4/ax_func_getopt_long.m4,the
macro's revision history}.

@majorheading License

@w{Copyright @copyright{} 2008 Alexandre Duret-Lutz @email{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/>.

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