Modules/TestBigEndian.c

#ifdef __CLASSIC_C__
int main(){
  int ac;
  char*av[];
#else
int main(int ac, char*av[]){
#endif
  /* Are we little or big endian?  From Harbison&Steele.  */
  union
  {
    long l;
    char c[sizeof (long)];
  } u;
  u.l = 1;
  if(ac > 1000){return *av[0];}
  return (u.c[sizeof (long) - 1] == 1)?1:0;
}