The Hask port of the Prelude and Data.List are on version 4.7.0.2 of base. These should be upgraded to the newest version (at time of writing). 4.8.1.0. The primary difference between versions is that some of functions in Data.List are now in Data.Foldable, and operate on Foldable instances rather than just lists.
The Hask port of the Prelude and Data.List are on version 4.7.0.2 of
base. These should be upgraded to the newest version (at time of writing). 4.8.1.0. The primary difference between versions is that some of functions inData.Listare now inData.Foldable, and operate onFoldableinstances rather than just lists.