gcc/testsuite/c-c++-common/pragma-diag-15.c

   1 /* { dg-do compile } */
   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    This test currently fails for C++ but it's not because of the pragma, it's
   9    because the location of the macro definition is incorrectly set.  This is a
  10    separate issue, will resolve it in a later patch.  */
  11
  12 #define X /* { dg-warning "-Wunused-macros" } */
  13 #pragma GCC diagnostic ignored "-Wunused-macros"