[petsc-dev] MPI_UB is deprecated in MPI-2.0

[Balay, Satish via petsc-dev]

http://ftp.mcs.anl.gov/pub/petsc/nightlylogs/archive/2019/03/01/make_master_arch-linux-pkgs-64idx_thrash.log
has the following [but for some reason - its filtered out from the warning 
count]

>>>>>>>
In file included from 
/sandbox/petsc/petsc.master-3/src/dm/impls/forest/p4est/dmp4est.c:13:0:
/sandbox/petsc/petsc.master-3/src/dm/impls/forest/p4est/pforest.c: In function 
‘DMPforestGetTransferSF_Point’:
/sandbox/petsc/petsc.master-3/src/dm/impls/forest/p4est/pforest.c:2518:7: 
warning: ‘ompi_mpi_ub’ is deprecated (declared at 
/sandbox/petsc/petsc.master-3/arch-linux-pkgs-64idx/include/mpi.h:928): MPI_UB 
is deprecated in MPI-2.0 [-Wdeprecated-declarations]
       MPI_Datatype     blockTypes[5] = 
{MPI_INT32_T,MPI_INT8_T,MPI_INT16_T,MPI_INT32_T,MPI_UB};
<<<<<<

Any idea how to fix this?

Thanks,
Satish