title: Visual Studio 2015 build error with Clang 3.7
body: <p>So this is a followup question to <a href="https://stackoverflow.com/questions/34018144/visual-studio-2015-update-1-clang-error/35443232#35443232">Visual Studio 2015 Update 1, clang error</a></p>
  
  <p>The error message I'm getting is</p>
  
  <blockquote>
    <p>clang.exe : error : cannot specify -o when generating multiple output files</p>
  </blockquote>
  
  <p>Basically, Hans Passant's workaround of disabling precompiled headers did not work for me.  I'm still seeing the error. Anybody have any more ideas to work around this?</p>
  
  <p>My VS-generated command line is: <code>-fpic -std=c++1y -fstack-protector -x c++ "Debug\" -Wall -fno-strict-aliasing -ffunction-sections -I "c:\SDKs\VST3 SDK" -I "c:\SDKs\vstsdk2.4" -I "....\JuceLibraryCode" -I "......\JUCE\modules" -g2 -gdwarf-2 -O0 -x c++-header -D "_CRT_SECURE_NO_WARNINGS" -D "WIN32" -D "_WINDOWS" -D "DEBUG" -D "_DEBUG" -D "JUCER_VS2010_78A501D=1" -D "JUCE_APP_VERSION=1.0.0" -D "JUCE_APP_VERSION_HEX=0x10000" -D "_WINDLL" -frtti -fomit-frame-pointer -fdata-sections -fno-ms-compatibility -std=c11 -fexceptions -o "Debug\" -fms-extensions -fno-short-enums</code></p>
  
  <p>I'm trying to build a C++ JUCE audio plugin in Windows with Clang because I ended up using a good amount of C++14 features when developing it initially on Mac and did not realize that other compilers were a bit more behind in C++ standard support.  JUCE applications provide cross platform support by a VS/XCode project file or Makefile generated from the Introjucer/Projucer application.  If I set up a new project with the VS2015 Cross-Platform C++ DLL with Clang 3.7 project template, everything compiles fine.  But using the JUCE-generated VS project file and then switching the project preferences to use the Clang 3.7 project toolset is where I run into this error.</p>