Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: altfloat (user goal)
rejecting: altfloat-0.3.1, altfloat-0.3, altfloat-0.2.2, altfloat-0.2.1
(constraint from user target requires ==0.2)
trying: altfloat-0.2
next goal: integer (dependency of altfloat-0.2)
Dependency tree exhaustively searched.