1  /* { dg-do preprocess } */
       2  /* { dg-additional-options "-Wunused-macros" } */
       3  
       4  /* In the past, the pragma has erroneously disabled the warning because the
       5     location was not tracked properly with -E or -save-temps; check that it works
       6     now.  */
       7  
       8  #define X /* { dg-warning "-:-Wunused-macros" } */
       9  #pragma GCC diagnostic ignored "-Wunused-macros"