X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=Data%2FDynamic.hs;h=df64c389bf786a1a4a0d96a8392cc3e70ae54f9d;hb=HEAD;hp=12bf1c493afe73d4f5db4b68940c1f45b9b50deb;hpb=8afc9fecd586d3c4f7ef9c69fb1686a79e5f441d;p=ghc-base.git

diff --git a/Data/Dynamic.hs b/Data/Dynamic.hs
index 12bf1c4..df64c38 100644
--- a/Data/Dynamic.hs
+++ b/Data/Dynamic.hs
@@ -1,4 +1,8 @@
-{-# OPTIONS_GHC -XNoImplicitPrelude #-}
+{-# LANGUAGE CPP, NoImplicitPrelude #-}
+#ifdef __GLASGOW_HASKELL__
+{-# LANGUAGE DeriveDataTypeable, StandaloneDeriving #-}
+#endif
+
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Data.Dynamic
@@ -47,7 +51,7 @@ import Unsafe.Coerce
 #ifdef __GLASGOW_HASKELL__
 import GHC.Base
 import GHC.Show
-import GHC.Num
+import GHC.Exception
 #endif
 
 #ifdef __HUGS__
@@ -93,6 +97,11 @@ instance Show Dynamic where
           showString ">>"
 
 #ifdef __GLASGOW_HASKELL__
+-- here so that it isn't an orphan:
+instance Exception Dynamic
+#endif
+
+#ifdef __GLASGOW_HASKELL__
 type Obj = Any
  -- Use GHC's primitive 'Any' type to hold the dynamically typed value.
  --