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vcpkg uses ilp64 on Windows #81

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ethanhs opened this issue Nov 18, 2021 · 1 comment
Open

vcpkg uses ilp64 on Windows #81

ethanhs opened this issue Nov 18, 2021 · 1 comment
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@ethanhs
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ethanhs commented Nov 18, 2021

When debugging rust-ndarray/ndarray#1110, I found out that openblas provided by vcpkg is compiled with ilp64.

I think the solution to this is to either add ilp64 support to cblas-sys, or better, build openblas from source using cmake, flang, and msvc.
@ethanhs
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ethanhs commented Nov 19, 2021

Okay, so I built OpenBLAS on Windows. We could do so by a) downloading and extracting flang and libflang from conda's artifacts: https://anaconda.org/conda-forge/flang/files b) requiring MSVC build tools, cmake, and Clang are installed c) building OpenBLAS :)

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@termoshtt @ethanhs