anchor.diff:      !PY! -m pip install --upgrade setuptools pip wheel
       if !errorlevel! neq 0 exit /b !errorlevel!
   
  -    if "!DISTUTILS_USE_SDK!"=="1" (
  +    if "%%p"=="35" (
  +      rem no SDK for 3.5, but force static-linking with DISTUTILS_USE_SDK=1 anyway
  +      rem to avoid missing MSVCP140.dll
  +      @call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" !VCARCH!
  +    ) else (
         @call "!SDK!\Bin\SetEnv.cmd" /release !ARCH!
         if !errorlevel! neq 0 exit /b !errorlevel!
       )
  
positive.code:     set SDK=%SDK71%
      set cmd=build bdist_wheel --zmq=bundled %UPLOAD%
    )
    if "%%p"=="35" (
      set DISTUTILS_USE_SDK=
    ) else (
      set DISTUTILS_USE_SDK=1
    )
  
    for %%b in (64, 32) do (
      if "%%b"=="64" (
        set SUFFIX=_64
        set ARCH=/x64
      ) else (
        set SUFFIX=
        set ARCH=/x86
      )
      set PY=%PYROOT%\Python%%p!SUFFIX!\Python
      echo !PY! !SDK!
  
negative.code: set SDK71=%SDKS%\v7.1
  set UPLOAD=%~1
  set PYROOT=C:\
  set DISTUTILS_USE_SDK=1
  
  for %%p in (35, 34, 27) do (
    if "%%p"=="27" (
  