Suppress dumpTcRn when -dno-debug-output is enabled.

Signed-off-by: Edward Z. Yang <ezyang@mit.edu>

diff --git a/compiler/typecheck/TcRnMonad.lhs b/compiler/typecheck/TcRnMonad.lhs
index ad2405b..16ac13c 100644 (file)
--- a/compiler/typecheck/TcRnMonad.lhs
+++ b/compiler/typecheck/TcRnMonad.lhs
@@ -429,7 +429,7 @@ traceOptTcRn flag doc = ifDOptM flag $ do
 dumpTcRn :: SDoc -> TcRn ()
 dumpTcRn doc = do { rdr_env <- getGlobalRdrEnv 
                   ; dflags <- getDOpts 
-                  ; liftIO (printForUser stderr (mkPrintUnqualified dflags rdr_env) doc) }
+                  ; when (not opt_NoDebugOutput) $ liftIO (printForUser stderr (mkPrintUnqualified dflags rdr_env) doc) }
 
 debugDumpTcRn :: SDoc -> TcRn ()
 debugDumpTcRn doc | opt_NoDebugOutput = return ()