anchor.diff:  
       cd ..\..
       cd contrib\vstudio\%VC_VER%
  -    cecho {0D}Building zlib 1.2.7{# #}{\n}
  -    MSBuild zlibvc.sln /p:configuration="Release" /nologo /m:%NUMBER_OF_PROCESSORS%
  -    MSBuild zlibvc.sln /p:configuration="Debug" /nologo /m:%NUMBER_OF_PROCESSORS%
  +    cecho {0D}Building zlib %ZLIB_VERSION%{# #}{\n}
  +    MSBuild zlibvc.sln /p:configuration="Release" /nologo /clp:ErrorsOnly /m:%NUMBER_OF_PROCESSORS%
  +    MSBuild zlibvc.sln /p:configuration="Debug" /nologo /clp:ErrorsOnly /m:%NUMBER_OF_PROCESSORS%
       cd ..\..\..
       copy /Y contrib\vstudio\%VC_VER%\%VS_ARCH%\ZlibStatRelease\zlibstat.lib ..\lib\Release
       copy /Y contrib\vstudio\%VC_VER%\%VS_ARCH%\ZlibStatDebug\zlibstat.lib ..\lib\Debug   
       copy /Y *.h ..\include\
   ) ELSE (
  -   cecho {0D}zlib 1.2.8 already built. Skipping.{# #}{\n}
  +   cecho {0D}zlib %ZLIB_VERSION% already built. Skipping.{# #}{\n}
   )
   
   :: ZZIPLIB
  -IF NOT EXIST "%DEPS%\zziplib-0.13.59.tar.bz2". (
  +set ZZIPLIB_VERSION=0.13.59
  +IF NOT EXIST "%DEPS%\zziplib-%ZZIPLIB_VERSION%.tar.bz2". (
       cd "%DEPS%"
       rmdir /S /Q "%DEPS%\zziplib"
  -    cecho {0D}Downloading zziplib 0.13.59{# #}{\n}
  -    wget http://sourceforge.net/projects/zziplib/files/zziplib13/0.13.59/zziplib-0.13.59.tar.bz2/download
  -    IF NOT EXIST "%DEPS%\zlib-1.2.7.tar.gz". GOTO :ERROR
  -) ELSE (
  -    cecho {0D}zziplib 0.13.59 already downloaded. Skipping.{# #}{\n}
  +    cecho {0D}Downloading zziplib %ZZIPLIB_VERSION%{# #}{\n}
  +    wget http://sourceforge.net/projects/zziplib/files/zziplib13/%ZZIPLIB_VERSION%/zziplib-%ZZIPLIB_VERSION%.tar.bz2/download
  +    IF NOT EXIST "%DEPS%\zziplib-%ZZIPLIB_VERSION%.tar.bz2". GOTO :ERROR
  +) ELSE (
  +    cecho {0D}zziplib %ZZIPLIB_VERSION% already downloaded. Skipping.{# #}{\n}
   )
   
   IF NOT EXIST "%DEPS%\zziplib". (
       CD "%DEPS%"
  -    cecho {0D}Extracting zziplib 0.13.59 package to "%DEPS%\zziplib"{# #}{\n}
  +    cecho {0D}Extracting zziplib %ZZIPLIB_VERSION% package to "%DEPS%\zziplib"{# #}{\n}
       mkdir zziplib
  -    7za e -y zziplib-0.13.59.tar.bz2
  -    7za x -y -ozziplib zziplib-0.13.59.tar
  -    del /Q zziplib-0.13.59.tar
  +    7za e -y zziplib-%ZZIPLIB_VERSION%.tar.bz2
  +    7za x -y -ozziplib zziplib-%ZZIPLIB_VERSION%.tar
  +    del /Q zziplib-%ZZIPLIB_VERSION%.tar
   )
   
   IF NOT EXIST "%DEPS%\zziplib\lib\zziplib.lib". (
      cd "%DEPS%\zziplib"
      mkdir lib
      mkdir include\zzip
  -   cd zziplib-0.13.59\msvc8
  +   cd zziplib-%ZZIPLIB_VERSION%\msvc8
   
      :: Use a custom project file as zziblib does not ship with vs2008 project files.
      :: Additionally its include/lib paths are not proper for it to find our zlib build and it has weird lib name postfixes.
  
positive.code:     svn checkout http://svn.xiph.org/tags/theora/libtheora-1.1.1/ "%DEPS%\theora"
  )
  
  IF NOT EXIST "%DEPS%\theora\%WIN32_OR_X64%\Release_SSE2\libtheora_static.lib". (
      cd "%DEPS%\theora\win32\VS2008"
      cecho {0D}Building Theora. Please be patient, this will take a while.{# #}{\n}
      MSBuild libtheora_static.sln /p:configuration=Debug /t:libtheora_static /clp:ErrorsOnly /nologo /m:%NUMBER_OF_PROCESSORS%
  
negative.code: )
  
  :: ZLIB
  set ZLIB_VERSION=1.2.8
  IF NOT EXIST "%DEPS%\zlib-%ZLIB_VERSION%.tar.gz". (
     CD "%DEPS%"
     rmdir /S /Q "%DEPS%\zlib"
     cecho {0D}Downloading zlib %ZLIB_VERSION%{# #}{\n}
     wget http://zlib.net/zlib-%ZLIB_VERSION%.tar.gz
     IF NOT EXIST "%DEPS%\zlib-%ZLIB_VERSION%.tar.gz". GOTO :ERROR
  ) ELSE (
     cecho {0D}zlib %ZLIB_VERSION% already downloaded. Skipping.{# #}{\n}
  )
  
  IF NOT EXIST "%DEPS%\zlib". (
      cd "%DEPS%"
      cecho {0D}Extracting zlib %ZLIB_VERSION% package to "%DEPS%\zlib"{# #}{\n}
      mkdir zlib
      7za e -y zlib-%ZLIB_VERSION%.tar.gz
      7za x -y -ozlib zlib-%ZLIB_VERSION%.tar
      del /Q zlib-%ZLIB_VERSION%.tar
  )
  
  IF NOT EXIST "%DEPS%\zlib\lib\Release\zlibstat.lib". (
  