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Newer compilers define __BYTE_ORDER__ and __ORDER_{BIG,LITTLE}_ENDIAN__

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Also add riscv the little endian list.
This commit is contained in:
Todd C. Miller
2022-05-31 10:18:39 -06:00
parent 1c83161622
commit 436deda08d
1 changed files with 9 additions and 3 deletions
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12
include/compat/endian.h
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@@ -1,7 +1,7 @@
/*
* SPDX-License-Identifier: ISC
*
* Copyright (c) 2013 Todd C. Miller <Todd.Miller@sudo.ws>
* Copyright (c) 2013, 2022 Todd C. Miller <Todd.Miller@sudo.ws>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
@@ -37,7 +37,13 @@
* We just check for the most common uses.
*/
# if defined(__BYTE_ORDER)
# if defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && \
(__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
# define BYTE_ORDER LITTLE_ENDIAN
# elif defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && \
(__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
# define BYTE_ORDER BIG_ENDIAN
# elif defined(__BYTE_ORDER)
# define BYTE_ORDER __BYTE_ORDER
# elif defined(_BYTE_ORDER)
# define BYTE_ORDER _BYTE_ORDER
@@ -49,7 +55,7 @@
defined(BIT_ZERO_ON_RIGHT) || defined(i386) || defined(__i386) || \
defined(MIPSEL) || defined(_MIPSEL) || defined(ns32000) || \
defined(__ns3200) || defined(sun386) || defined(vax) || \
defined(__vax) || defined(__x86__) || \
defined(__vax) || defined(__x86__) || defined(__riscv) || \
(defined(sun) && defined(__powerpc)) || \
(!defined(__hpux) && defined(__ia64))
# define BYTE_ORDER LITTLE_ENDIAN