[Haskell-cafe] building hare on ghc-6.6

how do i build hare on ghc-6.6? after removing all references to package lang from myghc--make, i get: RefacUtils.hs:54:5: parse error on input `HasModName' this just seems like a normal class being exported. the makefile proceeds past this to build a bunch of other files fine. if i ignore this and try loading the emacs file and entering haskell-refac-mode on a .hs buffer i get: Can't exec program: /home/yang/tmp/pkg/pure/todo/HaRe_20012006/refactorer/pfe