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Update Windows build readme + make cross-compilation work better + fix ImageQuant linkage - #10052

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akx wants to merge 4 commits into
python-pillow:mainfrom
akx:winbuild
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akx wants to merge 4 commits into
python-pillow:mainfrom
akx:winbuild

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@akx

@akx akx commented Sep 25, 2026 •

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Since my usual Windows machine is on the fritz, I installed Windows 11 ARM64 in a VM on my Mac (works surprisingly well, btw!). I ended up with an AMD64 Python though, and the build scripts didn't account for that situation. This fixes a thing here and there in the build preparation script to make cross-compilation work.

It also includes the ImageQuant linkage fix (#10050), since it failing on Win32 in CI is also related to cross-compilation.

If #9926 is merged, the FriBiDi fixes here wouldn't be necessary, but that's an easy fix either way.

@akx akx changed the title Update Windows build readme + make cross-compilation work better Update Windows build readme + make cross-compilation work better + fix ImageQuant linkage Sep 25, 2026
@akx akx mentioned this pull request Nov 10, 2026

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Please can you update/rebase main following #10484 so this is also tested on ARM64?

Comment thread winbuild/build.rst Resolved
@akx

akx commented Nov 10, 2026

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Rebased on main, added that .rst suggestion.

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3 participants