1  /* { dg-options "-Wimplicit-function-declaration" } */
       2  
       3  extern double sqrt (double);
       4  
       5  void test (float pf, float inff)
       6  {
       7    assert (pf == inff); /* { dg-bogus "sqrt" } */
       8    /* { dg-warning "implicit declaration of function 'assert'" "" { target *-*-* } .-1 } */
       9    /* { dg-message "header '<assert.h>'" "" { target *-*-* } .-2 } */
      10  }