fix: cross-compilation compatibility checks for Windows #4800
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davidhewitt
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Dec 31, 2024
davidhewitt
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Jan 3, 2025
* fix: cross-compilation compatibility checks for Windows * add newsfragments * add simple test
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pyo3-build-confighas anis_cross_compiling_from_tocheck which returnsfalsewhen compiling for 32-bit on 64-bit Windows, but the check doesn't take Windows on Arm into consideration and simply returnsfalsewhen bothhostandtargetare Windows, resulting in compilation failure when cross-compiling for aarch64 on x86-64 Windows.This PR fixes the check according to the original comment, and
marutin build --target aarch64-pc-windows-msvcworks as expected on x86-64 Windows with MSVC toolchain.Related Issue: PyO3/maturin#2368
I wonder if this PR should be merged with #4773.