libghc-semigroups-prof 0.13.0.1-1build1 (amd64 binary) in ubuntu utopic

 It contains a Haskell 98 logically-uninhabited data type used to
 indicate that a given term should not exist.
 .
 This package provides a library for the Haskell programming language, compiled
 for profiling. See http://www.haskell.org/ for more information on Haskell.