1  /* Test diagnostics for old-style definition not matching prior
       2     prototype are present and give correct location for that prototype
       3     (bug 15698).  Prototyped built-in function, wrong number of
       4     arguments.  */
       5  /* Origin: Joseph Myers <joseph@codesourcery.com> */
       6  /* { dg-do compile } */
       7  /* { dg-options "-std=gnu99" } */
       8  
       9  char *strchr(a) const char *a; { return 0; } /* { dg-warning "number of arguments doesn't match built-in prototype" } */