/*
 * custom.h
 *
 * This file is for use on systems where Autoconf isn't quite able to
 * get things right. It is appended to the bottom of config.h by configure,
 * in order to override definitions from Autoconf that are erroneous. See
 * the manual for more information.
 *
 * If you make additions to this file for your system, please send me
 * the information, to arnold@skeeve.com.
 */

/*
 * Copyright (C) 1995-2004, 2008, 2009, 2011, 2016, 2018
 * the Free Software Foundation, Inc.
 *
 * This file is part of GAWK, the GNU implementation of the
 * AWK Programming Language.
 *
 * GAWK 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 3 of the License, or
 * (at your option) any later version.
 *
 * GAWK 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

/* for VMS POSIX, from Pat Rankin, r.pat.rankin@gmail.com */
#ifdef VMS_POSIX
#undef VMS
#include "vms/redirect.h"
#endif

/* OpenVMS has some definitions in fp.h that should be in math.h */
/* From John Malmberg, wb8tyw@qsl.net */
#ifdef __VMS
#include <fp.h>
/* isnan () macro is broken */
#undef isnan
#ifndef _GNU_SOURCE
#define _GNU_SOURCE 1
#endif
#ifndef SIZE_MAX
#define SIZE_MAX __INT32_MAX
#endif
#endif

/* For QNX, based on submission from Michael Hunter, mphunter@qnx.com */
#ifdef __QNX__
#define GETPGRP_VOID	1
#endif

/* For MacOS X, which is almost BSD Unix */
#ifdef __APPLE__
#define HAVE_MKTIME	1
#endif

/* For HP/UX with gcc */
#if defined(hpux) || defined(_HPUX_SOURCE)
#undef HAVE_TZSET
#define HAVE_TZSET 1
#define _TZSET 1
#endif

#if defined(_AIX)
#define _XOPEN_SOURCE_EXTENDED 1
#endif

/* Junk for dfa.[ch] */
/* The __pure__ attribute was added in gcc 2.96.  */
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
#else
# define _GL_ATTRIBUTE_PURE /* empty */
#endif
