import Data.Graph.Inductive.Graph
import Data.Array.IArray
import Data.List
+
+#if __GLASGOW_HASKELL__ <= 606
+(*) `on` f = \x y -> f x * f y
+#else
import Data.Function
+#endif
-- Configure the path to cs2.exe relative to the program/ directory here.
cs2cmd = "./cs2.exe"