\section[ListSetOps]{Set-like operations on lists}
\begin{code}
+#include "HsVersions.h"
+
module ListSetOps (
unionLists,
intersectLists,
) where
#if defined(COMPILING_GHC)
-import Ubiq{-uitous-}
+IMP_Ubiq(){-uitous-}
import Util ( isIn, isn'tIn )
#endif