Index: Lib/distutils/msvc9compiler.py
===================================================================
--- Lib/distutils/msvc9compiler.py	(revision 84945)
+++ Lib/distutils/msvc9compiler.py	(working copy)
@@ -265,7 +265,7 @@
                              stderr=subprocess.PIPE)
 
     stdout, stderr = popen.communicate()
-    if popen.wait() != 0:
+    if popen.wait() != 0 or stderr:
         raise DistutilsPlatformError(stderr.decode("mbcs"))
 
     stdout = stdout.decode("mbcs")