X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Futils%2FFingerprint.hsc;h=b2e2ddc40763cb8f58a32d46fd6aa8ad13be4c3d;hp=d5a2409a26839e04a88099a9053dd262e27025da;hb=1d47f08d196252b4ee5f4d5b5af2fb4945720762;hpb=c148796dad1a36849a62ad8f3838b428e65c9310

diff --git a/compiler/utils/Fingerprint.hsc b/compiler/utils/Fingerprint.hsc
index d5a2409..b2e2ddc 100644
--- a/compiler/utils/Fingerprint.hsc
+++ b/compiler/utils/Fingerprint.hsc
@@ -35,7 +35,10 @@ fingerprint0 :: Fingerprint
 fingerprint0 = Fingerprint 0 0
 
 instance Outputable Fingerprint where
-  ppr (Fingerprint w1 w2) = text (printf "%016x%016x" w1 w2)
+  ppr (Fingerprint w1 w2) = text (printf "%016x%016x" i1 i2)
+    where i1 = fromIntegral w1 :: Integer
+          i2 = fromIntegral w2 :: Integer
+          -- printf in GHC 6.4.2 didn't have Word64 instances
 
 -- useful for parsing the output of 'md5sum', should we want to do that.
 readHexFingerprint :: String -> Fingerprint