1 #ifndef _XARCH_H_ 2 # define _XARCH_H_ 3 4 /* 5 * Copyright 1997 Metro Link Incorporated 6 * 7 * All Rights Reserved 8 * 9 * Permission to use, copy, modify, distribute, and sell this software and its 10 * documentation for any purpose is hereby granted without fee, provided that 11 * the above copyright notice appear in all copies and that both that 12 * copyright notice and this permission notice appear in supporting 13 * documentation, and that the names of the above listed copyright holder(s) 14 * not be used in advertising or publicity pertaining to distribution of 15 * the software without specific, written prior permission. The above listed 16 * copyright holder(s) make(s) no representations about the suitability of 17 * this software for any purpose. It is provided "as is" without express or 18 * implied warranty. 19 * 20 * THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM(S) ALL WARRANTIES WITH REGARD 21 * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 22 * AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE 23 * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY 24 * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER 25 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 26 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 27 */ 28 29 30 /* 31 * Determine the machine's byte order. 32 */ 33 34 /* See if it is set in the imake config first */ 35 # ifdef X_BYTE_ORDER 36 37 # define X_BIG_ENDIAN 4321 38 # define X_LITTLE_ENDIAN 1234 39 40 # else 41 42 # if defined(SVR4) || defined(__SVR4) 43 # include <sys/byteorder.h> 44 # elif defined(CSRG_BASED) 45 # if defined(__NetBSD__) || defined(__OpenBSD__) 46 # include <sys/types.h> 47 # endif 48 # include <machine/endian.h> 49 # elif defined(linux) 50 # if defined __STRICT_ANSI__ 51 # undef __STRICT_ANSI__ 52 # include <endian.h> 53 # define __STRICT_ANSI__ 54 # else 55 # include <endian.h> 56 # endif 57 /* 'endian.h' might have been included before 'Xarch.h' */ 58 # if !defined(LITTLE_ENDIAN) && defined(__LITTLE_ENDIAN) 59 # define LITTLE_ENDIAN __LITTLE_ENDIAN 60 # endif 61 # if !defined(BIG_ENDIAN) && defined(__BIG_ENDIAN) 62 # define BIG_ENDIAN __BIG_ENDIAN 63 # endif 64 # if !defined(PDP_ENDIAN) && defined(__PDP_ENDIAN) 65 # define PDP_ENDIAN __PDP_ENDIAN 66 # endif 67 # if !defined(BYTE_ORDER) && defined(__BYTE_ORDER) 68 # define BYTE_ORDER __BYTE_ORDER 69 # endif 70 # endif 71 72 # ifndef BYTE_ORDER 73 # define LITTLE_ENDIAN 1234 74 # define BIG_ENDIAN 4321 75 76 # if defined(__sun) && defined(__SVR4) 77 # include <sys/isa_defs.h> 78 # ifdef _LITTLE_ENDIAN 79 # define BYTE_ORDER LITTLE_ENDIAN 80 # endif 81 # ifdef _BIG_ENDIAN 82 # define BYTE_ORDER BIG_ENDIAN 83 # endif 84 # endif /* sun */ 85 # endif /* BYTE_ORDER */ 86 87 # define X_BYTE_ORDER BYTE_ORDER 88 # define X_BIG_ENDIAN BIG_ENDIAN 89 # define X_LITTLE_ENDIAN LITTLE_ENDIAN 90 91 # endif /* not in imake config */ 92 93 #endif /* _XARCH_H_ */ 94
