X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=Data%2FComplex.hs;h=369250149267dddf662073c0b77fdedea3ef62b2;hb=8073392a94dc5ab198e4758d6738a0c7f5ed68cf;hp=69655479c0d399f3cc3fadbabe122beb21275b88;hpb=11a832d96a0109cdec05d8a23ff4a3d64959617b;p=ghc-base.git

diff --git a/Data/Complex.hs b/Data/Complex.hs
index 6965547..3692501 100644
--- a/Data/Complex.hs
+++ b/Data/Complex.hs
@@ -1,3 +1,8 @@
+{-# LANGUAGE CPP, DeriveDataTypeable #-}
+#ifdef __GLASGOW_HASKELL__
+{-# LANGUAGE StandaloneDeriving #-}
+#endif
+
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Data.Complex
@@ -62,7 +67,7 @@ infix  6  :+
 -- For a complex number @z@, @'abs' z@ is a number with the magnitude of @z@,
 -- but oriented in the positive real direction, whereas @'signum' z@
 -- has the phase of @z@, but unit magnitude.
-data (RealFloat a) => Complex a
+data Complex a
   = !a :+ !a    -- ^ forms a complex number from its real and imaginary
                 -- rectangular components.
 # if __GLASGOW_HASKELL__