libsparse: Use BIONIC implementation of mmap64()

#define off64_t off_t

#endif

#ifdef __BIONIC__

extern void*  __mmap2(void *, size_t, int, int, int, off_t);

static inline void *mmap64(void *addr, size_t length, int prot, int flags,

        int fd, off64_t offset)

{

    return __mmap2(addr, length, prot, flags, fd, offset >> 12);

}

#endif

#define min(a, b) \

	({ typeof(a) _a = (a); typeof(b) _b = (b); (_a < _b) ? _a : _b; })