[project @ 2002-12-20 18:43:53 by ross]

[ghc-base.git] / Control / Exception.hs

diff --git a/Control/Exception.hs b/Control/Exception.hs
index 07115f5..dc01d93 100644 (file)
--- a/Control/Exception.hs
+++ b/Control/Exception.hs
@@ -238,14 +238,12 @@ handleJust p =  flip (catchJust p)
 -- >   catch (evaluate undefined) (\e -> return ())  ==> return ()
 --
 -- NOTE: @(evaluate a)@ is /not/ the same as @(a \`seq\` return a)@.
+#ifdef __GLASGOW_HASKELL__
 evaluate :: a -> IO a
-#if defined(__GLASGOW_HASKELL__)
 evaluate a = IO $ \s -> case a `seq` () of () -> (# s, a #)
        -- NB. can't write  
        --      a `seq` (# s, a #)
        -- because we can't have an unboxed tuple as a function argument
-#elif defined(__HUGS__)
-evaluate a = a `seq` return a  -- dummy implementation: to be fixed
 #endif
 
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