Hello everyone, I've some problems with cabal dependency mechanism. For example, when i try to install package "funsat", :> cabal install funsat it shows ====================== MSG =================== BGN Registering parsec-3.1.1... Installing library in /home/jhu/.cabal/lib/parsec-3.1.1/ghc-6.12.1 Registering parsec-3.1.1... cabal: Error: some packages failed to install: array-0.2.0.0 failed during the building phase. The exception was: ExitFailure 1 bimap-0.2.4 depends on array-0.2.0.0 which failed to install. containers-0.2.0.1 depends on array-0.2.0.0 which failed to install. fgl-5.4.2.2 depends on array-0.2.0.0 which failed to install. funsat-0.6.1 depends on array-0.2.0.0 which failed to install. parse-dimacs-1.2 depends on array-0.2.0.0 which failed to install. ====================== MSG =================== END while the current array package is on version array-0.3.0.2. The package has back compatibility problem. Any advice is appreciated... thank you in advance. Sincerely, Jun