libghc-vector-dev 0.12.0.1-2build1 (amd64 binary) in ubuntu cosmic

 An efficient implementation of Int-indexed arrays (both mutable and
 immutable), with a powerful loop fusion optimization framework.
 .
 This package provides a library for the Haskell programming language.
 See http://www.haskell.org/ for more information on Haskell.