libghc-semigroups-dev 0.15.3-1 (powerpc binary) in ubuntu vivid

 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.
 See http://www.haskell.org/ for more information on Haskell.