1  /* PR c/70791 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-Wnested-externs" } */
       4  
       5  void
       6  bar (void)
       7  {
       8    extern int i; /* { dg-warning "14:nested extern declaration of 'i'" } */
       9    extern short foo (void); /* { dg-warning "16:nested extern declaration of 'foo'" } */
      10    extern struct S *s; /* { dg-warning "20:nested extern declaration of 's'" } */
      11  }