1#ifndef _BITS_ENDIANNESS_H
 2#define _BITS_ENDIANNESS_H 1
 3
 4#ifndef _BITS_ENDIAN_H
 5# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
 6#endif
 7
 8/* S/390 is big-endian.  */
 9#define __BYTE_ORDER __BIG_ENDIAN
10
11#endif /* bits/endianness.h */