#ifndef _XARCH_H_
#define _XARCH_H_
#ifdef X_BYTE_ORDER
#define X_BIG_ENDIAN 4321
#define X_LITTLE_ENDIAN 1234
#else
#ifdef SVR4
#if defined(NCR) || defined(Mips)
#include <sys/endian.h>
#else
#if !defined(sun) && !defined(__sgi)
#include <sys/byteorder.h>
#endif
#endif
#elif defined(CSRG_BASED)
#if defined(__NetBSD__) || defined(__OpenBSD__)
#include <sys/types.h>
#endif
#include <machine/endian.h>
#elif defined(linux)
#if defined __STRICT_ANSI__
#undef __STRICT_ANSI__
#include <endian.h>
#define __STRICT_ANSI__
#else
#include <endian.h>
#endif
#if !defined(LITTLE_ENDIAN) && defined(__LITTLE_ENDIAN)
#define LITTLE_ENDIAN __LITTLE_ENDIAN
#endif
#if !defined(BIG_ENDIAN) && defined(__BIG_ENDIAN)
#define BIG_ENDIAN __BIG_ENDIAN
#endif
#if !defined(PDP_ENDIAN) && defined(__PDP_ENDIAN)
#define PDP_ENDIAN __PDP_ENDIAN
#endif
#if !defined(BYTE_ORDER) && defined(__BYTE_ORDER)
#define BYTE_ORDER __BYTE_ORDER
#endif
#elif defined(Lynx)
#if 0
#include <bsd/in.h>
#include <bsd/in_systm.h>
#include <bsd/ip.h>
#endif
#endif
#ifndef BYTE_ORDER
#define LITTLE_ENDIAN 1234
#define BIG_ENDIAN 4321
#if defined(__QNX__) && !defined(__QNXNTO__)
#define BYTE_ORDER LITTLE_ENDIAN
#endif
#if defined(__QNXNTO__)
#if defined(i386) || defined(__i386__) || defined(__x86__)
#define BYTE_ORDER LITTLE_ENDIAN
#else
#define BYTE_ORDER BIG_ENDIAN
#endif
#endif
#ifdef Lynx
#if defined(i386) || defined(__i386__) || defined(__x86__)
#define BYTE_ORDER LITTLE_ENDIAN
#else
#define BYTE_ORDER BIG_ENDIAN
#endif
#endif
#if (defined(sun) && defined(SVR4)) && !defined(Lynx)
#include <sys/isa_defs.h>
#ifdef _LITTLE_ENDIAN
#define BYTE_ORDER LITTLE_ENDIAN
#endif
#ifdef _BIG_ENDIAN
#define BYTE_ORDER BIG_ENDIAN
#endif
#endif
#if defined (__APPLE__) && defined (__MACH__)
# if defined (__ppc__) && !defined (__powerpc__)
# define __powerpc__ 1
# endif
# if defined (__powerpc__)
# define BYTE_ORDER BIG_ENDIAN
# elif defined (__i386__)
# define BYTE_ORDER LITTLE_ENDIAN
# else
# error "unknown apple architecture"
# endif
#endif
#endif
#define X_BYTE_ORDER BYTE_ORDER
#define X_BIG_ENDIAN BIG_ENDIAN
#define X_LITTLE_ENDIAN LITTLE_ENDIAN
#endif
#endif