Resolving dependencies...
Error: cabal: Could not resolve dependencies:
[__0] next goal: Flint2 (user goal)
[__0] rejecting: Flint2-0.1.0.0 (conflict: pkg-config package flint>=2.9, not
found in the pkg-config database)
[__0] fail (backjumping, conflict set: Flint2)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: Flint2