fix Data.HashTable for non-GHC

diff --git a/Data/HashTable.hs b/Data/HashTable.hs
index 7eab89d..fda647e 100644 (file)
--- a/Data/HashTable.hs
+++ b/Data/HashTable.hs
@@ -56,6 +56,8 @@ import GHC.IOBase     ( IO, IOArray, newIOArray,
 #else
 import Data.Char       ( ord )
 import Data.IORef      ( IORef, newIORef, readIORef, writeIORef )
+import System.IO.Unsafe        ( unsafePerformIO )
+import Data.Int                ( Int64 )
 #  if defined(__HUGS__)
 import Hugs.IOArray    ( IOArray, newIOArray,
                          unsafeReadIOArray, unsafeWriteIOArray )