usr/src/lib/libc/port/gen/xpg6.c
author Joshua M. Clulow <jmc@joyent.com>
Mon, 04 Mar 2013 23:52:56 +0000
changeset 14188 afe390b9f1e0
parent 5891 0d5c6468bb04
permissions -rw-r--r--
4020 Make ldi_ev_remove_callbacks safe to use in LDI callbacks Reviewed by: Robert Mustacchi <[email protected]> Approved by: Dan McDonald <[email protected]>

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
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 * CDDL HEADER END
 */

/*
 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident	"%Z%%M%	%I%	%E% SMI"

/*
 * __xpg6 (C99/SUSv3) was first introduced in Solaris 10.
 *
 * This is the default value that is compiled into libc.
 *
 * The default setting, _C99SUSv3_mode_OFF, means to retain current
 * Solaris behavior which is NOT C99 and SUSv3 compliant.
 * This is normal.  libc determines which standard to use based on
 * how applications are compiled.  libc at runtime determines which
 * behavior to choose based on the value of __xpg6.
 * But by default libc retains its original Solaris behavior.
 *
 * __xpg6 is used to control certain behaviors between the C99 standard,
 * the SUSv3 standard, and Solaris.  More explanation in inc/xpg6.h.
 * The XPG6 C compiler utility (c99) will add an object file that contains an
 * alternate definition for __xpg6.  The symbol interposition provided
 * by the linker will allow libc to find that symbol instead.
 *
 * Possible settings are available and documented in inc/xpg6.h.
 */

#include "xpg6.h"

unsigned int __xpg6 = _C99SUSv3_mode_OFF;

unsigned int libc__xpg6;	/* copy of __xpg6, private to libc */