The ListLike package provides typeclasses and instances to allow
polymorphism over many common datatypes.
The package can be built/installed with Cabal. If you have cabal-install,
simply run cabal install ListLike to install the package. Without
cabal-install, execute the following commands:
$ runghc Setup.hs configure
$ runghc Setup.hs build
$ runghc Setup.hs install