fixes.c

#if defined(__APPLE__)

#if !defined(bswap_16)

// Mac OS X / Darwin features; we include a check for bswap_16 because if it is already defined, protobuf has
// defined these macros for us already; if it isn't, we do it ourselves. In either case, we get the exact same
// result regardless which path was taken
#include <libkern/OSByteOrder.h>
#define bswap_16(x) OSSwapInt16(x)
#define bswap_32(x) OSSwapInt32(x)
#define bswap_64(x) OSSwapInt64(x)

#endif // !defined(bswap_16)

#else
// Non-Mac OS X / non-Darwin

#if HAVE_DECL_BSWAP_16 == 0
inline uint16_t bswap_16(uint16_t x)
{
    return (x >> 8) | (x << 8);
}
#endif // HAVE_DECL_BSWAP16

#if HAVE_DECL_BSWAP_32 == 0
inline uint32_t bswap_32(uint32_t x)
{
    return (((x & 0xff000000U) >> 24) | ((x & 0x00ff0000U) >>  8) |
            ((x & 0x0000ff00U) <<  8) | ((x & 0x000000ffU) << 24));
}
#endif // HAVE_DECL_BSWAP32

#if HAVE_DECL_BSWAP_64 == 0
inline uint64_t bswap_64(uint64_t x)
{
     return (((x & 0xff00000000000000ull) >> 56)
          | ((x & 0x00ff000000000000ull) >> 40)
          | ((x & 0x0000ff0000000000ull) >> 24)
          | ((x & 0x000000ff00000000ull) >> 8)
          | ((x & 0x00000000ff000000ull) << 8)
          | ((x & 0x0000000000ff0000ull) << 24)
          | ((x & 0x000000000000ff00ull) << 40)
          | ((x & 0x00000000000000ffull) << 56));
}
#endif // HAVE_DECL_BSWAP64

#endif // defined(__APPLE__)

#if HAVE_DECL_HTOBE32 == 0
inline uint32_t htobe32(uint32_t host_32bits)
{
    return host_32bits;
}
#endif // HAVE_DECL_HTOBE32

#if HAVE_DECL_LE32TOH == 0
inline uint32_t le32toh(uint32_t little_endian_32bits)
{
    return bswap_32(little_endian_32bits);
}
#endif // HAVE_DECL_LE32TOH