Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: haroonga (user goal)
rejecting: haroonga-0.1.7.1, haroonga-0.1.7.0, haroonga-0.1.6.0,
haroonga-0.1.5.0, haroonga-0.1.4.0, haroonga-0.1.3.0, haroonga-0.1.2.0,
haroonga-0.1.1.0 (constraint from user target requires ==0.1.0.0)
rejecting: haroonga-0.1.0.0 (conflict: requires pkg-config package
groonga>=4.0.0, not found in the pkg-config database)
Dependency tree exhaustively searched.