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