xsdk: enable slepc in deal.ii (used to be a concretization error) (#10218)
xsdk: enable slepc in deal.ii (used to be a concretization error) (#10218)


LLNL/spack,iulian787/spack,iulian787/spack,iulian787/spack,LLNL/spack,iulian787/spack,LLNL/spack,LLNL/spack,iulian787/spack,LLNL/spack