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platform.h: regularize endian detection

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-08-16 03:24:40 +02:00
parent 9768a82eb0
commit 867ffb9616
1 changed files with 21 additions and 16 deletions
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35
include/platform.h
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@ -1,8 +1,8 @@
/* vi: set sw=4 ts=4: */
/*
Copyright 2006, Bernhard Reutner-Fischer
Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
* Copyright 2006, Bernhard Reutner-Fischer
*
* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
*/
#ifndef BB_PLATFORM_H
#define BB_PLATFORM_H 1
@ -152,33 +152,37 @@
#if defined(__digital__) && defined(__unix__)
# include <sex.h>
# define __BIG_ENDIAN__ (BYTE_ORDER == BIG_ENDIAN)
# define __BYTE_ORDER BYTE_ORDER
#elif defined __FreeBSD__
#elif defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) \
|| defined(__APPLE__)
# include <sys/resource.h> /* rlimit */
# include <machine/endian.h>
# define bswap_64 __bswap64
# define bswap_32 __bswap32
# define bswap_16 __bswap16
# define __BIG_ENDIAN__ (_BYTE_ORDER == _BIG_ENDIAN)
#elif !defined __APPLE__ && !defined __OpenBSD__
#else
# include <byteswap.h>
# include <endian.h>
#endif
#if defined(__BIG_ENDIAN__) && __BIG_ENDIAN__
# define BB_BIG_ENDIAN 1
# define BB_LITTLE_ENDIAN 0
#elif defined(__BYTE_ORDER) && __BYTE_ORDER == __BIG_ENDIAN
#if defined(__BYTE_ORDER) && __BYTE_ORDER == __BIG_ENDIAN
# define BB_BIG_ENDIAN 1
# define BB_LITTLE_ENDIAN 0
#elif defined(__BYTE_ORDER) && __BYTE_ORDER == __LITTLE_ENDIAN
# define BB_BIG_ENDIAN 0
# define BB_LITTLE_ENDIAN 1
#elif defined(_BYTE_ORDER) && _BYTE_ORDER == _BIG_ENDIAN
# define BB_BIG_ENDIAN 1
# define BB_LITTLE_ENDIAN 0
#elif (defined(__BYTE_ORDER) && __BYTE_ORDER == __LITTLE_ENDIAN) || defined(__386__)
#elif defined(_BYTE_ORDER) && _BYTE_ORDER == _LITTLE_ENDIAN
# define BB_BIG_ENDIAN 0
# define BB_LITTLE_ENDIAN 1
#elif defined(_BYTE_ORDER) && _BYTE_ORDER == _LITTLE_ENDIAN
#elif defined(BYTE_ORDER) && BYTE_ORDER == BIG_ENDIAN
# define BB_BIG_ENDIAN 1
# define BB_LITTLE_ENDIAN 0
#elif defined(BYTE_ORDER) && BYTE_ORDER == LITTLE_ENDIAN
# define BB_BIG_ENDIAN 0
# define BB_LITTLE_ENDIAN 1
#elif defined(__386__)
# define BB_BIG_ENDIAN 0
# define BB_LITTLE_ENDIAN 1
#else
@ -236,7 +240,8 @@ typedef uint32_t bb__aliased_uint32_t FIX_ALIASING;
/* ---- Compiler dependent settings ------------------------- */
#if (defined __digital__ && defined __unix__) \
|| defined __APPLE__ || defined __FreeBSD__ || defined __OpenBSD__
|| defined __APPLE__ \
|| defined __FreeBSD__ || defined __OpenBSD__ || defined __NetBSD__
# undef HAVE_MNTENT_H
# undef HAVE_SYS_STATFS_H
#else