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CadQuery / ocp-build-system

A system to build Python wheel PyPI packages for OCP.
Apache License 2.0
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cadquery-ocp 7.6.3a0 not working on Windows 7 #8

Closed polycorn closed 6 months ago

polycorn commented 1 year ago

The cadquery-ocp 7.6.3a0 version included a compiled vtk 9.1, which used the tbb12-XXX.dll. This dll had a call to Kernel32.dll for function "GetCurrentThreadStackLimits", and windows7 does not have it. It is only available on Windows 8+. The offical vtk 9.1 package does not have this depenedency, thus, it can be executed on windows 7. The old cadquery-ocp 7.5.3.0's tbb dll does not have this function call.

fpq473 commented 1 year ago

The win_amd64 wheel was built by running (link):

conda install -n cadquery-ocp -y ocp=7.6.* vtk=9.1.0

and then packaging the tbb12.dll that was installed.

I can see that https://conda.anaconda.org/conda-forge/win-64/tbb-2021.6.0-h91493d7_0.tar.bz2 was installed and I can see "GetCurrentThreadStackLimits" in tbb12.dll. So I'm guessing that it's not a vtk problem, it's just that in Oct 2022, when the wheel was built, there was a newer version of tbb, and that was packaged into the wheel.

I don't have access to a Windows machine so it's hard for me to propose a fix, but @polycorn, if you are a conda user, perhaps you can find an install command that installs ocp 7.6, vtk 9.1, and doesn't install an incompatible version of tbb. Wheels are built on Windows Server 2022 or 2019 so ideally you'd check on that, but I imagine checking on Windows 10 might be good enough.

If you do this, please paste the output of the install command and your Windows version.

polycorn commented 1 year ago

Thanks for the reply ! I am not familiar with conda, but i will look into it later. From what I have seen, https://anaconda.org/conda-forge/tbb/files has a version https://anaconda.org/conda-forge/tbb/2021.5.0/download/win-64/tbb-2021.5.0-h91493d7_5.tar.bz2, this tbb library is available to win7.

jmwright commented 6 months ago

We have moved well past this version of OCP and VTK, so I'm going to close this. Please reopen if this issue persists with the latest wheels.