+%
+% (c) The University of Glasgow 2006
+%
+
\begin{code}
module Digraph(
import Util ( sortLe )
+import Outputable
-- Extensions
-import MONAD_ST
+import Control.Monad.ST
-- std interfaces
-import Maybe
-import Array
-import List
-import Outputable
+import Data.Maybe
+import Data.Array
+import Data.List
#if __GLASGOW_HASKELL__ > 604
import Data.Array.ST
-#elif __GLASGOW_HASKELL__ >= 504
-import Data.Array.ST hiding ( indices, bounds )
#else
-import ST
+import Data.Array.ST hiding ( indices, bounds )
#endif
\end{code}