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68c50708d1
The ARM specific code was trying to determine endianness using the `__LITTLE_ENDIAN__` macro which is not guaranteed to be defined. When not defined, it makes libunwind to build the big-endian code even when the compiler builds for a little-endian target. This change allows building libunwind with the `musl-gcc` toolchain which does not define `__LITTLE_ENDIAN__`. Use `__BYTE_ORDER__` instead. Patch by Idan Freiberg!