1  /* PR preprocessor/29612 */
       2  /* { dg-do preprocess } */
       3  /* { dg-options "-Wtraditional" } */
       4  
       5  # 6 "pr29612-2.c"
       6  
       7  #if 1U /* { dg-warning "traditional C rejects" "numeric constant suffix" } */
       8  #endif
       9  
      10  # 1 "foo.h" 1 3
      11  
      12  #if 1U
      13  #endif /* No warning in system header.  */
      14  
      15  # 16 "pr29612-2.c" 2
      16  
      17  #if 1U /* { dg-warning "traditional C rejects" "numeric constant suffix" } */
      18  #endif