1#ifndef __A_OUT_GNU_H__
 2# error "Never use <bits/a.out.h> directly; include <a.out.h> instead."
 3#endif
 4
 5#ifdef __x86_64__
 6
 7/* Signal to users of this header that this architecture really doesn't
 8   support a.out binary format.  */
 9#define __NO_A_OUT_SUPPORT 1
10
11#endif