1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -std=c99" } */
       3  
       4  void
       5  foo (void)
       6  {
       7    char *e = alloca (100); /* { dg-warning "implicit declaration|initialization of 'char \\*' from 'int' makes" } */
       8  }