[BUG] Built package is `win32` even if `cp38-win_amd64` specified

[greg-is-kub]

Description

Hi to you all! First : thank for this very convenient tool that you built!

I've encountered a weird situation where I ask cibuilldwheel to generate an amd64 wheel and the generated one is in win32. However this only happens at the very end of the process. Here is the job : https://gitlab.eclipse.org/eclipse/aidge/aidge_core/-/jobs/389744 In the jobs here are the parts /lines I find interesting :

• List of compatible tags we can observe that only *64 jobs are listed
• ERROR : falsly detecting that the platform is win32
• The command that says explicitely "I want an amd64 wheel
• finally building a win32 wheel
• test command failing because we try to test an win32 on amd64

I have ensured that my runner has amd64 architecture .

Do you have any idea on how this could happen & how do I fix this ?

Thanks in advance !

Build log

https://gitlab.eclipse.org/eclipse/aidge/aidge_core/-/jobs/389744

CI config

https://gitlab.eclipse.org/eclipse/aidge/gitlab_shared_files/-/blob/8bfb47237ad427ddd1400e3f33bcf2ea811102da/.gitlab/ci/release/cibuildwheel_windows.gitlab-ci.yml

[ideoforms]

I'm seeing the same issue on another project that I develop with cibuildwheel, and likewise if I do python3 -m build --wheel:

• I have configured the entire flow to use AMD64 (set CIBW_ARCHS_WINDOWS=AMD64)
• the debugging output confirms that it is building a 64-bit wheel (cp311-win_amd64 finished in 54.50s)
• the contents of the wheel itself is 64-bit
• but the generated filename is *-win32.whl

Reproduced with Python 3.11 and 3.12, cibuildwheel 2.21.3.