Markus Mützel

Works for me: ``` Markus@Markus-PC MSYS ~ $ cat thread.c #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L \ && !defined(__STDC_NO_THREADS__) #include #endif Markus@Markus-PC MSYS ~ $ gcc -c -std=c11 thread.c Markus@Markus-PC...

MSYS2 applies a couple of patches for their OpenBLAS binary packages: https://github.com/msys2/MINGW-packages/tree/master/mingw-w64-openblas In particular this one might be relevant for you: https://github.com/msys2/MINGW-packages/blob/d0c310a8f99bcc677b458910a0794318ed7ebeb2/mingw-w64-openblas/004-aarch64-detection.patch (Not sure why it hasn't been upstreamed to...

If you prefer a binary distribution over compiling everything yourself locally, you might be able to use the CLANGARM64 environment of MSYS2. It includes binaries of OpenBLAS for Windows on...

You're guessing correctly. It's built using your f2c version of LAPACK with LLVM Clang.

Fwiw, it's building for me locally with MSYS2's version of LLVM Flang 16 on Windows x86 64-bit. And it passes all tests here. The flags I used to configure: ```...

> Although with LAPACK disabled its works fine here as well. Not sure why you point that out. But please notice that it does build LAPACK with LLVM Flang with...

I don't have access to Windows on ARM hardware either. Nor do I have any experience with `clang-cl`. What I can tell is that OpenBLAS is built and distributed for...

Sorry if this came across as a bug report. It was meant to be a "proper" PR. I gathered from your comments in #4263 that you'd like to move more...

Updated the PR and rebased on a current head. Building with AVX512 still leads to failing tests with LLVM Flang 17 on Windows.

If you have more tests in mind for your point 1, you could probably add them to the tests here: https://github.com/msys2/msys2-tests/tree/main/runtime