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-rw-r--r--src/Utility/ConcurrentOutput.hs2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/Utility/ConcurrentOutput.hs b/src/Utility/ConcurrentOutput.hs
index cbd5a00d..b49447cc 100644
--- a/src/Utility/ConcurrentOutput.hs
+++ b/src/Utility/ConcurrentOutput.hs
@@ -132,6 +132,8 @@ withConcurrentOutput a = a `finally` drain
hPutStrLn stderr "DRAIN"
hFlush stderr
lockOutput (return ())
+ hPutStrLn stderr "DRAIN DONE"
+ hFlush stderr
-- | Displays a string to stdout, and flush output so it's displayed.
--