anchor.diff:  %CMAKE_CMD% ..
   %DEVENV% GLFW.sln /Build
   %DEVENV% GLFW.sln /Build "Release"
  +echo "glfw built successfully"
   :Build_ZLib
   cd %PWD%
   rd /S /Q %BASEDIR%\deps\zlib-1.2.8\build
  
positive.code: set ZLIB_LIBRARY=%BASEDIR%\deps\zlib-1.2.8\build\Release\zlib.lib
  %CMAKE_CMD% -DZLIB_LIBRARY:FILEPATH=%ZLIB_LIBRARY% -DZLIB_INCLUDE_DIR:PATH=%ZLIB_INCLUDE_DIR% ..
  %DEVENV% libpng.sln /Build "Release"
  cd %BASEDIR%\deps\lpng166
  copy scripts\pnglibconf.h.prebuilt pnglibconf.h
  :Build_LibOgg
  cd %PWD%
  cd ..\deps\libogg-1.3.1\win32
  
negative.code: %DEVENV% vorbis_static.sln /upgrade
  %DEVENV% vorbis_static.sln /Build "Debug"
  %DEVENV% vorbis_static.sln /Build "Release"
  echo "libvorbis1"
  mkdir ..\..\bin
  mkdir ..\..\bin\lib
  mkdir ..\..\bin\lib\debug
  mkdir ..\..\bin\lib\release
  copy Win32\Debug\*.lib ..\..\bin\lib\debug
  copy Win32\Release\*.lib ..\..\bin\lib\release
  echo "libvorbis2"
  :Build_Portaudio
  cd %PWD%
  cd ..\deps\portaudio_v19
  