X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=Data%2FComplex.hs;fp=Data%2FComplex.hs;h=263b0526201c415b749629603b557db8a47fedee;hb=d1d83f8663afa876603cd42c7f5e20478ad44567;hp=749ba91982b9d44a13340138010ca1fab5923639;hpb=21558662f2eecb17e71beadf3cf1c0809125f811;p=ghc-base.git

diff --git a/Data/Complex.hs b/Data/Complex.hs
index 749ba91..263b052 100644
--- a/Data/Complex.hs
+++ b/Data/Complex.hs
@@ -44,6 +44,7 @@ module Data.Complex
 import Prelude
 
 import Data.Typeable
+import Data.Generics.Basics( Data )
 
 #ifdef __HUGS__
 import Hugs.Prelude(Num(fromInt), Fractional(fromDouble))
@@ -62,7 +63,11 @@ infix  6  :+
 data (RealFloat a) => Complex a
   = !a :+ !a	-- ^ forms a complex number from its real and imaginary
 		-- rectangular components.
-  deriving (Eq, Read, Show)
+# if __GLASGOW_HASKELL__
+	deriving (Eq, Show, Read, Data)
+# else
+	deriving (Eq, Show, Read)
+# endif
 
 -- -----------------------------------------------------------------------------
 -- Functions over Complex