protect some StablePtr stuff from __PARALLEL_HASKELL__.
import PrelBase
import PrelIOBase
import PrelAddr
-import PrelForeign ( StablePtr, deRefStablePtr )
import PrelList ( span )
+#ifndef __PARALLEL_HASKELL__
+import PrelForeign ( StablePtr, deRefStablePtr )
+#endif
---------------------------------------------------------------
-- HACK: Magic unfoldings not implemented for unboxed lists