/* Copyright (C) 2003 Free Software Foundation, Inc.   This file is part of the GNU C Library.   Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.   The GNU C Library is free software; you can redistribute it and/or   modify it under the terms of the GNU Lesser General Public   License as published by the Free Software Foundation; either   version 2.1 of the License, or (at your option) any later version.   The GNU C Library 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   Lesser General Public License for more details.   You should have received a copy of the GNU Lesser General Public   License along with the GNU C Library; if not, write to the Free   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA   02111-1307 USA.  */#ifndef _SEMAPHORE_H# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."#endif#include <bits/wordsize.h>#if __WORDSIZE == 64# define __SIZEOF_SEM_T	32#else# define __SIZEOF_SEM_T	16#endif/* Value returned if `sem_open' failed.  */#define SEM_FAILED      ((sem_t *) 0)typedef union{  char __size[__SIZEOF_SEM_T];  long int __align;} sem_t;