Add Windows ARM64 support #99
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pitrou
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Oct 15, 2025
…nsics (#47779) ### Rationale for this change This change enables building Arrow C++ for Windows ARM64 with MSVC when setting `ARROW_SIMD_LEVEL` to `NONE`. This is useful to be able to build Arrow with `vcpkg` and use it as a dependency. Setting `ARROW_SIMD_LEVEL` to `NONE` is done to disable the use of `xsimd`, which does not yet support msvc arm64 intrinsics, and is non-trivial to fix. ### What changes are included in this PR? A patch to the vendored `pcg` library, based on imneme/pcg-cpp#99. The upstream pcg library has not been updated in the past 3 years, so this may never get merged. ### Are these changes tested? Yes, the changes have been tested in microsoft/vcpkg#47750 (the same patch for `vcpkg`, which this change would alleviate) and in https://github.com/jgiannuzzi/ParquetSharp/actions/runs/18354286294 (a full run of the ParquetSharp CI, using this patch to build Arrow with `vcpkg`). ### Are there any user-facing changes? Not really, unless you consider adding the ability to build Arrow on Windows ARM64 user-facing? * GitHub Issue: #47784 Authored-by: Jonathan Giannuzzi <jonathan@giannuzzi.me> Signed-off-by: Antoine Pitrou <antoine@python.org>
zanmato1984
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Nov 5, 2025
… intrinsics (apache#47779) ### Rationale for this change This change enables building Arrow C++ for Windows ARM64 with MSVC when setting `ARROW_SIMD_LEVEL` to `NONE`. This is useful to be able to build Arrow with `vcpkg` and use it as a dependency. Setting `ARROW_SIMD_LEVEL` to `NONE` is done to disable the use of `xsimd`, which does not yet support msvc arm64 intrinsics, and is non-trivial to fix. ### What changes are included in this PR? A patch to the vendored `pcg` library, based on imneme/pcg-cpp#99. The upstream pcg library has not been updated in the past 3 years, so this may never get merged. ### Are these changes tested? Yes, the changes have been tested in microsoft/vcpkg#47750 (the same patch for `vcpkg`, which this change would alleviate) and in https://github.com/jgiannuzzi/ParquetSharp/actions/runs/18354286294 (a full run of the ParquetSharp CI, using this patch to build Arrow with `vcpkg`). ### Are there any user-facing changes? Not really, unless you consider adding the ability to build Arrow on Windows ARM64 user-facing? * GitHub Issue: apache#47784 Authored-by: Jonathan Giannuzzi <jonathan@giannuzzi.me> Signed-off-by: Antoine Pitrou <antoine@python.org>
Author
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Hello @imneme , I'm very sorry to disturb you. I sincerely hope this pull request can be merged. It has already been validated by |
Author
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It has passed tests on multiple platforms (including MSVC ARM64): https://github.com/Legacy-LuaSTG-Engine/pcg-cpp/actions/runs/19141647833 
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Hi - I would also like this to be merged, we'd like to expand our platform support in correctionlib and we heavily use pcg-cpp, it's great! |
Author
This repository has been inactive for years, so I think the best solution is to fix the code using a patch. |
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Merged into Total-Random/pcg-cpp |
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Currently, pcg-cpp lacks Windows ARM64 support.
This modification has been tested on github actions.
See test result: https://github.com/Legacy-LuaSTG-Engine/windows-arm64-problems/actions/runs/14560185357