anchor.diff:  cd %PWD%
   cd ..\deps\libogg-1.3.1\win32
   cd %XIPH_FOLDER%
  +%DEVENV% vorbis_static.sln /upgrade
   %DEVENV% libogg_static.sln /Build "Debug"
   %DEVENV% libogg_static.sln /Build "Release"
   mkdir ..\..\lib
  
positive.code: cd %PWD%
  cd ..\deps\libvorbis-1.3.3\win32
  cd %XIPH_FOLDER%
  %DEVENV% vorbis_static.sln /Build "Debug"
  %DEVENV% vorbis_static.sln /Build "Release"
  mkdir ..\..\bin
  
negative.code: if /i "%MSVS_VER%" == "vs110" (
  	set GENERATOR_NAME="Visual Studio 11"
  	set "B2_TOOLSET=msvc-11.0"
  	set XIPH_FOLDER="VS2010"
  )
  if /i "%MSVS_VER%" == "vs120" (
  	set GENERATOR_NAME="Visual Studio 12"
  	set "B2_TOOLSET=msvc-12.0"
  	set XIPH_FOLDER="VS2010"
  )
  
  if %GENERATOR_NAME%=="" (
  