[Nicer Show instance for Requires in C/FFI.hs
Einar Karttunen <ekarttun@cs.helsinki.fi>**20060723110618] hunk ./C/FFI.hs 27
-    } deriving(Typeable, Data, Eq, Ord, Show)
+    } deriving(Typeable, Data, Eq, Ord)
hunk ./C/FFI.hs 30
+instance Show Requires where
+    show (Requires [] []) = "()"
+    show (Requires xs ys) = show (xs,ys)
+