@@ -1,4 +1,5 @@
1{-# LANGUAGE CPP #-}
1{-# LANGUAGE CPP #-}
2+{-# LANGUAGE DeriveDataTypeable #-}
2{-# LANGUAGE GeneralizedNewtypeDeriving #-}
3{-# LANGUAGE GeneralizedNewtypeDeriving #-}
3{-# LANGUAGE OverloadedStrings #-}
4{-# LANGUAGE OverloadedStrings #-}
4{-# LANGUAGE RecordWildCards #-}
5{-# LANGUAGE RecordWildCards #-}