Bug#1085007: nwchem, build-depends unsatisfiable on 32-bit architectures.

[Peter Michael Green]

Package: nwchem
Version: 7.2.2-2
Severity: serious
Justification: rc-policy - packages must be buildable within the same 
release.
User: debian...@lists.debian.org
Usertags: edos-uninstallable
nwchem build-depends on libscalapack-openmpi-dev which is no
longer built on 32-bit architectures.

libscalapack-mpi-dev may be a suitable alternative.