Resolving dependencies...
Error: cabal: Could not resolve dependencies:
[__0] next goal: simple-pango (user goal)
[__0] rejecting: simple-pango-0.1.0.1 (conflict: pkg-config package
pangocairo-any, not found in the pkg-config database)
[__0] fail (backjumping, conflict set: simple-pango)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: simple-pango