.. blogpost::
    :title: Build protobuf and onnx for Windows
    :keywords: protobuf
    :date: 2018-08-23
    :categories: libraries

    A good way to build it is to look into the file
    ``appveyor.yml``. You should end up with something
    like this:
    `build_protobuf.bat <https://github.com/sdpython/pymyinstall/blob/master/whl/windows/build_protobuf.bat>`_.
    `onnx <https://github.com/onnx/onnx>`_ was a little bit more complex to build as
    the current build system is based on :epkg:`Miniconda`
    and there is still no version for :epkg:`Python` 3.7.
    I had to start with the standard distribution
    which I did. The release is available as artifacts on
    `appveyor/onnx <https://ci.appveyor.com/project/sdpython/onnx/build/0.3.17/artifacts>`_.
    Instructions can be found in
    `appveyor.yml <https://github.com/sdpython/onnx/blob/master/appveyor.yml>`_.