#ifndef PY_BIG_ENDIAN

#ifdef _MSC_VER

typedef unsigned __int32 uint32_t;

#else

#include <stdint.h>

#endif

static CYTHON_INLINE int _lx__is_big_endian(void) {

    union {uint32_t i; char c[4];} x = {0x01020304};

    return x.c[0] == 1;

}

#define PY_BIG_ENDIAN _lx__is_big_endian()

#endif