1. I presently get errors of the sort
==> Error: KeyError: 'No spec with name mpi in silo@4.10.2%gcc@8.1.0+fortran+mpi
[...]
$HOME/spack/var/spack/repos/builtin/packages/silo/package.py:84, in configure_args:
81 'FCFLAGS={0}'.format(self.compiler.pic_flag)]
82
83 if '+mpi' in self.spec:
>> 84 config_args.append('CC=%s' % self.spec['mpi'].mpicc)
85 config_args.append('CXX=%s' % self.spec['mpi'].mpicxx)
86 config_args.append('FC=%s' % self.spec['mpi'].mpifc)
without the extra explicit MPI dependency.
2. Silo uses zlib, so we should explicitly depend on it.
734d6306a2