import Prelude
+#ifdef __HUGS__
+import Hugs.IOExts
+#endif
+
#ifdef __GLASGOW_HASKELL__
-- | Triggers an immediate garbage collection
foreign import ccall {-safe-} "performGC" performGC :: IO ()
#endif
+
+#ifdef __NHC__
+import NHC.IOExtras (performGC)
+#endif