| 1 | #ifndef _XARCH_H_
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| 2 | # define _XARCH_H_
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| 3 |
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| 4 | /*
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| 5 | * Copyright 1997 Metro Link Incorporated
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| 6 | *
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| 7 | * All Rights Reserved
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| 8 | *
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| 9 | * Permission to use, copy, modify, distribute, and sell this software and its
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| 10 | * documentation for any purpose is hereby granted without fee, provided that
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| 11 | * the above copyright notice appear in all copies and that both that
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| 12 | * copyright notice and this permission notice appear in supporting
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| 13 | * documentation, and that the names of the above listed copyright holder(s)
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| 14 | * not be used in advertising or publicity pertaining to distribution of
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| 15 | * the software without specific, written prior permission. The above listed
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| 16 | * copyright holder(s) make(s) no representations about the suitability of
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| 17 | * this software for any purpose. It is provided "as is" without express or
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| 18 | * implied warranty.
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| 19 | *
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| 20 | * THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM(S) ALL WARRANTIES WITH REGARD
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| 21 | * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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| 22 | * AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE
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| 23 | * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
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| 24 | * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
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| 25 | * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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| 26 | * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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| 27 | */
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| 28 |
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| 29 |
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| 30 | /*
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| 31 | * Determine the machine's byte order.
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| 32 | */
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| 33 |
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| 34 | /* See if it is set in the imake config first */
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| 35 | # ifdef X_BYTE_ORDER
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| 36 |
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| 37 | # define X_BIG_ENDIAN 4321
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| 38 | # define X_LITTLE_ENDIAN 1234
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| 39 |
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| 40 | # else
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| 41 |
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| 42 | # if defined(SVR4) || defined(__SVR4)
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| 43 | # include <sys/byteorder.h>
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| 44 | # elif defined(CSRG_BASED)
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| 45 | # if defined(__NetBSD__) || defined(__OpenBSD__)
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| 46 | # include <sys/types.h>
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| 47 | # endif
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| 48 | # include <machine/endian.h>
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| 49 | # elif defined(linux)
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| 50 | # if defined __STRICT_ANSI__
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| 51 | # undef __STRICT_ANSI__
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| 52 | # include <endian.h>
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| 53 | # define __STRICT_ANSI__
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| 54 | # else
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| 55 | # include <endian.h>
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| 56 | # endif
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| 57 | /* 'endian.h' might have been included before 'Xarch.h' */
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| 58 | # if !defined(LITTLE_ENDIAN) && defined(__LITTLE_ENDIAN)
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| 59 | # define LITTLE_ENDIAN __LITTLE_ENDIAN
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| 60 | # endif
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| 61 | # if !defined(BIG_ENDIAN) && defined(__BIG_ENDIAN)
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| 62 | # define BIG_ENDIAN __BIG_ENDIAN
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| 63 | # endif
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| 64 | # if !defined(PDP_ENDIAN) && defined(__PDP_ENDIAN)
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| 65 | # define PDP_ENDIAN __PDP_ENDIAN
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| 66 | # endif
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| 67 | # if !defined(BYTE_ORDER) && defined(__BYTE_ORDER)
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| 68 | # define BYTE_ORDER __BYTE_ORDER
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| 69 | # endif
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| 70 | # endif
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| 71 |
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| 72 | # ifndef BYTE_ORDER
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| 73 | # define LITTLE_ENDIAN 1234
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| 74 | # define BIG_ENDIAN 4321
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| 75 |
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| 76 | # if defined(__sun) && defined(__SVR4)
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| 77 | # include <sys/isa_defs.h>
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| 78 | # ifdef _LITTLE_ENDIAN
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| 79 | # define BYTE_ORDER LITTLE_ENDIAN
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| 80 | # endif
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| 81 | # ifdef _BIG_ENDIAN
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| 82 | # define BYTE_ORDER BIG_ENDIAN
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| 83 | # endif
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| 84 | # endif /* sun */
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| 85 | # endif /* BYTE_ORDER */
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| 86 |
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| 87 | # define X_BYTE_ORDER BYTE_ORDER
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| 88 | # define X_BIG_ENDIAN BIG_ENDIAN
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| 89 | # define X_LITTLE_ENDIAN LITTLE_ENDIAN
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| 90 |
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| 91 | # endif /* not in imake config */
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| 92 |
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| 93 | #endif /* _XARCH_H_ */
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