Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: HPlot (user goal)
rejecting: HPlot-0.3 (constraint from user target requires ==0.2)
rejecting: HPlot-0.2 (conflict: requires pkg-config package
plplotd-gnome2-any, not found in the pkg-config database)
rejecting: HPlot-0.1 (constraint from user target requires ==0.2)
Dependency tree exhaustively searched.