else if (dlerror () == NULL) { puts ("dlerror() didn't return a string"); return 1; }
main (void){  void *d = dlopen (obj, RTLD_LAZY);  int n;  if (d == NULL)    {      printf ("cannot load %s: %s\n", obj, dlerror ());      return 1;    }  for (n = 0; n < 10000; ++n)    if (dlsym (d, "does not exist") != NULL)      {	puts ("dlsym() did not fail");	return 1;      }  return 0;}