Resolving dependencies...
Error: cabal: Could not resolve dependencies:
[__0] trying: mpi-hs-0.7.3.0 (user goal)
[__1] rejecting: mpi-hs:+openmpi (conflict: pkg-config package ompi-any, not
found in the pkg-config database)
[__1] rejecting: mpi-hs:-openmpi (manual flag can only be changed explicitly)
[__1] fail (backjumping, conflict set: mpi-hs, mpi-hs:openmpi)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: mpi-hs, mpi-hs:openmpi