sudo apt-get install cabal-installsudo apt-get install libghc6-zlib-devcabal updatesudo cabal install cabal-install --globalsudo apt-get install libgtk2.0-devsudo apt-get install libgtksourceview2.0-devsudo cabal install alex --globalsudo cabal install happy --globalsudo cabal install gtk2hs-buildtools --globalsudo apt-get install libglade2-dev sudo cabal install glade --globalsudo cabal install l