X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=Data%2FEither.hs;h=fd6651f4cce86ff02451f1803c2b1d71174e209b;hb=3efe74f3acd0dff20d078b6e8416664193b219d4;hp=956e6daedc7c0d64813be8f90f73d082d4fbf84e;hpb=bb916d929d2ebd226eb9a1d0fdb30f73314ef3ec;p=ghc-base.git

diff --git a/Data/Either.hs b/Data/Either.hs
index 956e6da..fd6651f 100644
--- a/Data/Either.hs
+++ b/Data/Either.hs
@@ -27,8 +27,11 @@ module Data.Either (
 import GHC.Base
 import GHC.Show
 import GHC.Read
+#endif
+
 import Data.Typeable
 
+#ifdef __GLASGOW_HASKELL__
 {-
 -- just for testing
 import Test.QuickCheck
@@ -76,8 +79,8 @@ rights x = [a | Right a <- x]
 partitionEithers :: [Either a b] -> ([a],[b])
 partitionEithers = foldr (either left right) ([],[])
  where
-  left  a (l, r) = (a:l, r)
-  right a (l, r) = (l, a:r)
+  left  a ~(l, r) = (a:l, r)
+  right a ~(l, r) = (l, a:r)
 
 {-
 {--------------------------------------------------------------------