127 lines
3.4 KiB
C
127 lines
3.4 KiB
C
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#ifndef _XARCH_H_
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#define _XARCH_H_
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/*
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* Copyright 1997 Metro Link Incorporated
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*
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* All Rights Reserved
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the names of the above listed copyright holder(s)
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* not be used in advertising or publicity pertaining to distribution of
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* the software without specific, written prior permission. The above listed
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* copyright holder(s) make(s) no representations about the suitability of
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* this software for any purpose. It is provided "as is" without express or
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* implied warranty.
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*
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* THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM(S) ALL WARRANTIES WITH REGARD
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* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE
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* LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
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* DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/* $XFree86: xc/include/Xarch.h,v 1.10tsi Exp $ */
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/*
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* Determine the machine's byte order.
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*/
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/* See if it is set in the imake config first */
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#ifdef X_BYTE_ORDER
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#define X_BIG_ENDIAN 4321
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#define X_LITTLE_ENDIAN 1234
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#else
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#ifdef SVR4
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#if defined(NCR) || defined(Mips) || defined(__sgi)
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#include <sys/endian.h>
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#else
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#if !defined(sun)
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#include <sys/byteorder.h>
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#endif
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#endif
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#elif defined(CSRG_BASED)
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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#include <sys/types.h>
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#endif
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#include <machine/endian.h>
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#elif defined(linux)
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#if defined __STRICT_ANSI__
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#undef __STRICT_ANSI__
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#include <endian.h>
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#define __STRICT_ANSI__
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#else
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#include <endian.h>
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#endif
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/* 'endian.h' might have been included before 'Xarch.h' */
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#if !defined(LITTLE_ENDIAN) && defined(__LITTLE_ENDIAN)
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#define LITTLE_ENDIAN __LITTLE_ENDIAN
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#endif
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#if !defined(BIG_ENDIAN) && defined(__BIG_ENDIAN)
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#define BIG_ENDIAN __BIG_ENDIAN
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#endif
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#if !defined(PDP_ENDIAN) && defined(__PDP_ENDIAN)
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#define PDP_ENDIAN __PDP_ENDIAN
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#endif
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#if !defined(BYTE_ORDER) && defined(__BYTE_ORDER)
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#define BYTE_ORDER __BYTE_ORDER
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#endif
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#elif defined(Lynx)
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#if 0
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/* LynxOS 2.4.0 has wrong defines in bsd/ip.h */
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#include <bsd/in.h>
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#include <bsd/in_systm.h>
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#include <bsd/ip.h>
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#endif
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#endif
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#ifndef BYTE_ORDER
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#define LITTLE_ENDIAN 1234
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#define BIG_ENDIAN 4321
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#if defined(__QNX__) && !defined(__QNXNTO__)
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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#if defined(__QNXNTO__)
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#if defined(i386) || defined(__i386__) || defined(__x86__)
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#define BYTE_ORDER LITTLE_ENDIAN
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#else
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#define BYTE_ORDER BIG_ENDIAN
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#endif
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#endif
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#ifdef Lynx
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#if defined(i386) || defined(__i386__) || defined(__x86__)
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#define BYTE_ORDER LITTLE_ENDIAN
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#else
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#define BYTE_ORDER BIG_ENDIAN
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#endif
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#endif
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#if (defined(sun) && defined(SVR4)) && !defined(Lynx)
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#include <sys/isa_defs.h>
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#ifdef _LITTLE_ENDIAN
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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#ifdef _BIG_ENDIAN
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#define BYTE_ORDER BIG_ENDIAN
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#endif
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#endif /* sun */
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#endif /* BYTE_ORDER */
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#define X_BYTE_ORDER BYTE_ORDER
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#define X_BIG_ENDIAN BIG_ENDIAN
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#define X_LITTLE_ENDIAN LITTLE_ENDIAN
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#endif /* not in imake config */
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#endif /* _XARCH_H_ */
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