libghc-dlist-doc 0.5-6 (i386 binary) in ubuntu trusty

 Differences lists: a list-like type supporting O(1) append.
 This is particularly useful for efficient logging and pretty
 printing, (e.g. with the Writer monad), where list append
 quickly becomes too expensive.
 This package provides the documentation for a library for the Haskell
 programming language.
 See http://www.haskell.org/ for more information on Haskell.