#pragma once
/* Portable be64toh() for non-glibc or pre-2.25 targets. */
#if defined(__linux__)
#  include <endian.h>
#elif defined(__APPLE__)
#  include <machine/endian.h>
#  include <libkern/OSByteOrder.h>
#  define be64toh(x) OSSwapBigToHostInt64(x)
#else
#  include <stdint.h>
static inline uint64_t be64toh(uint64_t x) {
#  if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
    return __builtin_bswap64(x);
#  else
    return x;
#  endif
}
#endif