+=== GHC ===
+install GHC via your distro manager. make sure you install
+it with shared libaries.
+on ubuntu 12.04 LTS it is:
+ $ sudo apt-get install ghc-dynamic
+
+for an "easy" installation of the remaining packages, you can use
+the script "./tools/installhaskellenv.sh".
+note, that it deletes your ~/.cabal and ~/.ghc directory first.
+
+