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      1     0  stevel /*
      2     0  stevel  * CDDL HEADER START
      3     0  stevel  *
      4     0  stevel  * The contents of this file are subject to the terms of the
      5  5891     raf  * Common Development and Distribution License (the "License").
      6  5891     raf  * You may not use this file except in compliance with the License.
      7     0  stevel  *
      8     0  stevel  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9     0  stevel  * or http://www.opensolaris.org/os/licensing.
     10     0  stevel  * See the License for the specific language governing permissions
     11     0  stevel  * and limitations under the License.
     12     0  stevel  *
     13     0  stevel  * When distributing Covered Code, include this CDDL HEADER in each
     14     0  stevel  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15     0  stevel  * If applicable, add the following below this CDDL HEADER, with the
     16     0  stevel  * fields enclosed by brackets "[]" replaced with your own identifying
     17     0  stevel  * information: Portions Copyright [yyyy] [name of copyright owner]
     18     0  stevel  *
     19     0  stevel  * CDDL HEADER END
     20     0  stevel  */
     21  5891     raf 
     22     0  stevel /*
     23  5891     raf  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
     24     0  stevel  * Use is subject to license terms.
     25     0  stevel  */
     26     0  stevel 
     27     0  stevel #pragma ident	"%Z%%M%	%I%	%E% SMI"
     28     0  stevel 
     29     0  stevel /*
     30     0  stevel  * __xpg6 (C99/SUSv3) was first introduced in Solaris 10.
     31     0  stevel  *
     32     0  stevel  * This is the default value that is compiled into libc.
     33     0  stevel  *
     34     0  stevel  * The default setting, _C99SUSv3_mode_OFF, means to retain current
     35     0  stevel  * Solaris behavior which is NOT C99 and SUSv3 compliant.
     36     0  stevel  * This is normal.  libc determines which standard to use based on
     37     0  stevel  * how applications are compiled.  libc at runtime determines which
     38     0  stevel  * behavior to choose based on the value of __xpg6.
     39     0  stevel  * But by default libc retains its original Solaris behavior.
     40     0  stevel  *
     41     0  stevel  * __xpg6 is used to control certain behaviors between the C99 standard,
     42     0  stevel  * the SUSv3 standard, and Solaris.  More explanation in inc/xpg6.h.
     43     0  stevel  * The XPG6 C compiler utility (c99) will add an object file that contains an
     44     0  stevel  * alternate definition for __xpg6.  The symbol interposition provided
     45     0  stevel  * by the linker will allow libc to find that symbol instead.
     46     0  stevel  *
     47     0  stevel  * Possible settings are available and documented in inc/xpg6.h.
     48     0  stevel  */
     49     0  stevel 
     50     0  stevel #include "xpg6.h"
     51     0  stevel 
     52     0  stevel unsigned int __xpg6 = _C99SUSv3_mode_OFF;
     53  5891     raf 
     54  5891     raf unsigned int libc__xpg6;	/* copy of __xpg6, private to libc */
     55