Bug#816101: petsc: FTBFS on mipsel - broken openmpi breaks petsc build

[Drew Parsons]

On Fri, 22 Apr 2016 18:25:41 +0200 Graham Inggs <ginggs at debian.org>
wrote:
> 
> Your luck ran out, the build failed on powerpc [1].


Well dang.

I've prepared a patch (test_mpi_conditional) to skip the 2 MPI test.
I'm making it conditional to skip only on mipsel and powerpc, on the
grounds that it's useful feedback to have the tests run successfully on
the architectures where they're expected to be ok.

Drew