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compat/bswap.h: detect endianness from XL C compiler macros
There is no /usr/include/endian.h equivalent on z/OS, but the compiler will define macros to indicate endianness on host and target hardware. This adds a test for these macros as a last resort for determining byte order. Signed-off-by: David Michael <fedora.dm0@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -122,6 +122,10 @@ static inline uint64_t git_bswap64(uint64_t x)
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# define GIT_BYTE_ORDER GIT_BIG_ENDIAN
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# define GIT_BYTE_ORDER GIT_BIG_ENDIAN
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# elif defined(_LITTLE_ENDIAN) && !defined(_BIG_ENDIAN)
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# elif defined(_LITTLE_ENDIAN) && !defined(_BIG_ENDIAN)
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# define GIT_BYTE_ORDER GIT_LITTLE_ENDIAN
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# define GIT_BYTE_ORDER GIT_LITTLE_ENDIAN
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# elif defined(__THW_BIG_ENDIAN__) && !defined(__THW_LITTLE_ENDIAN__)
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# define GIT_BYTE_ORDER GIT_BIG_ENDIAN
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# elif defined(__THW_LITTLE_ENDIAN__) && !defined(__THW_BIG_ENDIAN__)
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# define GIT_BYTE_ORDER GIT_LITTLE_ENDIAN
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# else
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# else
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# error "Cannot determine endianness"
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# error "Cannot determine endianness"
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# endif
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# endif
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