anchor.diff:  
   set PLATFORM=None
   :START
  -IF %PLATFORM% == x64 GOTO END
  +IF %PLATFORM% == x64 GOTO LOOPEND
   IF %PLATFORM% == Win32 SET PLATFORM=x64
   IF %PLATFORM% == None SET PLATFORM=Win32
   
  
positive.code: IF NOT %ERRORLEVEL% == 0 GOTO FAILED
  copy %PLATFORM%\toolset-vs2013_xp.targets %D%\LLVM-vs2013_xp\toolset.targets
  IF NOT %ERRORLEVEL% == 0 GOTO FAILED
  GOTO START
  
  
  
negative.code: SET D="%ProgramFiles(x86)%\MSBuild\Microsoft.Cpp\v4.0\V120\Platforms\%PLATFORM%\PlatformToolsets"
  IF EXIST %D% GOTO FOUND_V120
  
  :LOOPEND
  IF %SUCCESS% == 1 goto DONE
  echo Failed to find MSBuild toolsets directory.
  goto FAILED
  