For GHC, implement the Typeable.hs macros using standalone deriving

[ghc-base.git] / Data / Complex.hs

diff --git a/Data/Complex.hs b/Data/Complex.hs
index 9765eda..9ea8a41 100644 (file)
--- a/Data/Complex.hs
+++ b/Data/Complex.hs
@@ -1,4 +1,7 @@
 {-# LANGUAGE CPP, DeriveDataTypeable #-}
+#ifdef __GLASGOW_HASKELL__
+{-# LANGUAGE StandaloneDeriving #-}
+#endif
 
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