New build failure when hsyslog updated

[mihaimaruseac]

Found on nightly. Full log

[1 of 2] Compiling System.Log.MonadLogger.Syslog ( System/Log/MonadLogger/Syslog.hs, dist/build/System/Log/MonadLogger/Syslog.o )

System/Log/MonadLogger/Syslog.hs:63:5: error:
    • Couldn't match expected type ‘IO ()’
                  with actual type ‘Facility -> IO a0 -> IO a0’
    • In the expression:
        withSyslog defaultConfig
        $ \ syslog
            -> syslog
                 USER (levelToPriority level) (fromLogStr $ f l s level msg)
      In an equation for ‘formattedSyslogOutput’:
          formattedSyslogOutput f l s level msg
            = withSyslog defaultConfig
              $ \ syslog
                  -> syslog
                       USER (levelToPriority level) (fromLogStr $ f l s level msg)

System/Log/MonadLogger/Syslog.hs:63:16: error:
    Variable not in scope: defaultConfig :: String

System/Log/MonadLogger/Syslog.hs:63:32: error:
    • Couldn't match expected type ‘[Option]’
                  with actual type ‘(t1
                                     -> Priority -> Data.ByteString.Internal.ByteString -> t0)
                                    -> t0’
    • The lambda expression ‘\ syslog
                               -> syslog
                                    USER (levelToPriority level) (fromLogStr $ f l s level msg)’
      has one argument,
      but its type ‘[Option]’ has none
      In the second argument of ‘($)’, namely
        ‘\ syslog
           -> syslog
                USER (levelToPriority level) (fromLogStr $ f l s level msg)’
      In the expression:
        withSyslog defaultConfig
        $ \ syslog
            -> syslog
                 USER (levelToPriority level) (fromLogStr $ f l s level msg)

System/Log/MonadLogger/Syslog.hs:64:16: error:
    Data constructor not in scope: USER