From 4923a3f407568ca5ca922780ff6e646e7f15003d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9mi=20Vion?= <vion.remi@gmail.com>
Date: Tue, 24 Nov 2015 23:38:51 +0100
Subject: [PATCH] actually fixes #1410

---
 src/Stack/Build/Execute.hs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Stack/Build/Execute.hs b/src/Stack/Build/Execute.hs
index 5ba82f6c82..0424d1f8c5 100644
--- a/src/Stack/Build/Execute.hs
+++ b/src/Stack/Build/Execute.hs
@@ -273,7 +273,7 @@ getSetupExe setupHs tmpdir = do
                     , toFilePath tmpOutputPath
                     ] ++
                     ["-build-runner" | wc == Ghcjs]
-            runCmd (CMD (Just tmpdir) (compilerExeName wc) menv args) Nothing
+            runCmd' (\cp -> cp { std_out = UseHandle stderr }) (CMD (Just tmpdir) (compilerExeName wc) menv args) Nothing
             when (wc == Ghcjs) $ renameDir tmpJsExePath jsExePath
             renameFile tmpExePath exePath
             return $ Just exePath