Ditto              42 ompi/include/mpif-sentinels.h !     Ditto for MPI_ARGVS_NULL / MPI_COMM_SPAWN_MULTIPLE.
Ditto              53 ompi/include/mpif-sentinels.h !     Ditto for MPI_STATUSES_IGNORE
Ditto              55 ompi/include/mpif-sentinels.h !     Ditto for MPI_UNWEIGHTED
Ditto              57 ompi/include/mpif-sentinels.h !     Ditto for MPI_WEIGHTS_EMPTY