anchor.diff:        cmake ^
         git ^
         boost-cpp ^
  -      snappy zlib brotli gflags lz4-c zstd -c conda-forge
  +      snappy zlib brotli gflags lz4-c zstd -c conda-forge || exit /B
   
   set GENERATOR=Visual Studio 14 2015 Win64
   set CONFIGURATION=release
  
positive.code: 
  cmake -G "%GENERATOR%" ^
        -DCMAKE_INSTALL_PREFIX=%ARROW_HOME% ^
        -DARROW_BOOST_USE_SHARED=OFF ^
        -DCMAKE_BUILD_TYPE=%CONFIGURATION% ^
        -DARROW_CXXFLAGS="/MP" ^
        -DARROW_PYTHON=ON ^
        -DARROW_PARQUET=ON ^
        ..  || exit /B
  cmake --build . --target INSTALL --config %CONFIGURATION%  || exit /B
  
  @rem Needed so python-test.exe works
  set PYTHONPATH=%CONDA_PREFIX%\Lib;%CONDA_PREFIX%\Lib\site-packages;%CONDA_PREFIX%\python35.zip;%CONDA_PREFIX%\DLLs;%CONDA_PREFIX%;%PYTHONPATH%
  
negative.code: set INSTALL_DIR=%_VERIFICATION_DIR%\install
  
  @rem Requires GNU Wget for Windows
  wget --no-check-certificate -O %_TARBALL% %_DIST_URL%/apache-arrow-%1-rc%2/%_TARBALL% || exit /B
  
  tar xf %_TARBALL% -C %_VERIFICATION_DIR_UNIX%
  
  set PYTHON=3.6
  
  