+#ifndef __HUGS__
+
+\begin{code}
+import Prelude -- To generate the dependency
+import PrelGHC ( indexIntArray# )
+import PrelBase ( Int(..) )
+import PrelByteArr ( ByteArray(..), newIntArray )
+import PrelArrExtra ( unsafeFreezeByteArray )
+import PrelIOBase ( IOException(..),
+ IOErrorType( UnsupportedOperation ),
+ unsafePerformIO, stToIO, ioException )
+import Ratio