Bug#1102465: petsc: PETSc was configured with one MPICH/Open MPI mpi.h version but now appears to be compiling using an older version

[Drew Parsons]

Source: petsc
Followup-For: Bug #1102465

As pointed out already in this bug, this warning is not a bug in PETSc.
It is working entirely as intended.

No information was given with this bug reopening.

I presume it refers to the 32-bit build failures of reverse
dependencies, which is happening due to the upgrade of mpich from v4 to v5. 

petsc (and all other MPI packages) needs to be rebuilt against
the new mpich (on 32-bit arches)
(the mpich upgrade needs a transition bug).

I will close this bug again if no justification for reopening is given.

Drew