1  /* PR preprocessor/29612 */
       2  /* { dg-do compile } */
       3  /* { dg-options "" } */
       4  
       5  # 6 "pr29612-1.c"
       6  
       7  int foo (void) { return 'ab'; } /* { dg-warning "multi-character" } */
       8  
       9  # 1 "foo.h" 1 3
      10  
      11  int bar (void) { return 'ab'; } /* No warning in system header.  */
      12  
      13  # 14 "pr29612-1.c" 2
      14  
      15  int baz (void) { return 'ab'; } /* { dg-warning "multi-character" } */