-void mpi_win_null_copy_fn_( int* win, int* keyval, int* extrastate, MPI_Aint* valin, MPI_Aint* valout,
- int* flag, int* ierr ){
+void mpi_win_null_copy_fn_(int* /*win*/, int* /*keyval*/, int* /*extrastate*/, MPI_Aint* /*valin*/,
+ MPI_Aint* /*valout*/, int* flag, int* ierr)
+{