1  /* Missing `unused parameter' warning.
       2     egcs-1.1.2 fails, egcs-ss-19990418 passes.
       3     http://gcc.gnu.org/ml/gcc-bugs/1998-09/msg00199.html */
       4  /* { dg-do compile } */
       5  /* { dg-options "-O -Wall -W" } */
       6  int
       7  f(c)
       8       char c; /* { dg-warning "unused parameter" "unused parameter warning" } */
       9  {
      10    return 0;
      11  }