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-rw-r--r--src/Haddock/Utils.hs6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/Haddock/Utils.hs b/src/Haddock/Utils.hs
index 9ccca362..ee7bfd0a 100644
--- a/src/Haddock/Utils.hs
+++ b/src/Haddock/Utils.hs
@@ -300,7 +300,11 @@ bye :: String -> IO a
bye s = putStr s >> exitSuccess
-dieMsg :: String -> IO ()
+die :: String -> IO a
+die s = hPutStr stderr s >> exitWith (ExitFailure 1)
+
+
+dieMsg :: String -> IO a
dieMsg s = getProgramName >>= \prog -> die (prog ++ ": " ++ s)