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Diffstat (limited to 'src/Utility/ConcurrentOutput.hs')
| -rw-r--r-- | src/Utility/ConcurrentOutput.hs | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/Utility/ConcurrentOutput.hs b/src/Utility/ConcurrentOutput.hs index 8497b2dc..9e6b6a68 100644 --- a/src/Utility/ConcurrentOutput.hs +++ b/src/Utility/ConcurrentOutput.hs @@ -164,7 +164,10 @@ createProcessConcurrent :: P.CreateProcess -> IO (Maybe Handle, Maybe Handle, Ma createProcessConcurrent p | willoutput (P.std_out p) || willoutput (P.std_err p) = ifM tryTakeOutputLock - ( firstprocess + ( do + hPutStrLn stderr $ show ("NOT CONCURRENT", cmd) + hFlush stderr + firstprocess , do lcker <- outputLockedBy <$> getOutputHandle l <- readMVar lcker |