anchor.diff:  echo "libpng built successfully"
   cd %BASEDIR%\deps\lpng166
   copy scripts\pnglibconf.h.prebuilt pnglibconf.h
  -echo "libpng copied ok"
  +echo "libpng copied"
   :Build_LibOgg
   cd %PWD%
   cd ..\deps\libogg-1.3.1\win32
  
positive.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
  
negative.code: %DEVENV% portaudio.sln /upgrade
  %DEVENV% portaudio.sln /Build "Debug"
  %DEVENV% portaudio.sln /Build "Release"
  echo "portaudio built"
  copy options_cmake.h ..\include\options_cmake.h
  echo "portaudio options_cmake.h copied"
  cd %PWD%
  :Build_GLEW
  echo "start of building glew"
  