1  /* Bug 22308: C_TYPE_FIELDS_READONLY not updated on type variants.  */
       2  /* { dg-do compile } */
       3  /* { dg-options "" } */
       4  
       5  struct foo s;
       6  volatile struct foo t;
       7  struct foo { const int z; };
       8  
       9  void
      10  bar (void)
      11  {
      12    t = s; /* { dg-error "assignment of read-only variable 't'" } */
      13  }