dontcare           64 ompi/mca/io/romio321/romio/adio/common/flatten.c   int dontcare, combiner;
dontcare           67 ompi/mca/io/romio321/romio/adio/common/flatten.c   rc = MPI_Type_get_envelope (datatype, &dontcare, &dontcare, &dontcare, &combiner);