X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=Data%2FComplex.hs;h=bbc8a07db2449f75bf26c1d70c9eb6eef4b74cb2;hb=685432ac839f249ccd98bdf79fcf0c985872380b;hp=6ebbfcbaeb8ae33e105c5bf5d240360519c6ae88;hpb=9875b3cf1ada084cfa3e6c516b11e946f1d6234e;p=ghc-base.git

diff --git a/Data/Complex.hs b/Data/Complex.hs
index 6ebbfcb..bbc8a07 100644
--- a/Data/Complex.hs
+++ b/Data/Complex.hs
@@ -65,7 +65,11 @@ infix  6  :+
 data (RealFloat a) => Complex a
   = !a :+ !a    -- ^ forms a complex number from its real and imaginary
                 -- rectangular components.
+# if __GLASGOW_HASKELL__
+        deriving (Eq, Show, Read, Data)
+# else
         deriving (Eq, Show, Read)
+# endif
 
 -- -----------------------------------------------------------------------------
 -- Functions over Complex