custom.h

/*
 * 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 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

/* 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 ULTRIX 4.3 */
#ifdef ultrix
#define HAVE_MKTIME     1
#define GETGROUPS_NOT_STANDARD	1
#endif

/* For whiny users */
#ifdef USE_INCLUDED_STRFTIME
#undef HAVE_STRFTIME
#endif

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

/* For z/OS, from Dave Pitts */
#ifdef ZOS_USS
#undef HAVE_DLFCN_H
#undef HAVE_SYS_PARAM_H
#undef HAVE_MCHECK_H
#undef HAVE_SETENV
#define setenv zos_setenv
#define unsetenv zos_unsetenv
extern int setenv(const char *name, const char *value, int rewrite);
extern int unsetenv(const char *name);
#endif