In the deprecation warning for mkTyCon, suggest deriving Typeable.

diff --git a/Data/Typeable.hs b/Data/Typeable.hs
index 688c2aa..8858ab5 100644 (file)
--- a/Data/Typeable.hs
+++ b/Data/Typeable.hs
@@ -160,7 +160,7 @@ newtype TypeRepKey = TypeRepKey Fingerprint
 
 ----------------- Construction ---------------------
 
-{-# DEPRECATED mkTyCon "use mkTyCon3 instead" #-}
+{-# DEPRECATED mkTyCon "either derive Typeable, or use mkTyCon3 instead" #-}
 -- | Backwards-compatible API
 mkTyCon :: String       -- ^ unique string
         -> TyCon        -- ^ A unique 'TyCon' object