scipy missing in MSYS2

[jsm8989]

Bug Report

One-Line Summary

Installing artiq via MSYS as in the (stable) manual fails due to unrecognised scipy dependency.

Issue Details

Steps to Reproduce

1. Install MSYS from msys2.org
2. Following the exact Windows (MSYS) installation instructions in manual for 8.8912+cd12600
3. The step pacman -S mingw-w64-clang-x86_64-artiq fails

Expected Behavior

Install artiq

Actual (undesired) Behavior

• Unable to install package due to unrecognised scipy dependency. I am new to MSYS but I'm assuming the dependency should be mingw-w64-x86_64-python-scipy and not mingw-w64-clang-x86_64-python-scipy as in the error message.
• $ pacman -S mingw-w64-clang-x86_64-artiq resolving dependencies... warning: cannot resolve "mingw-w64-clang-x86_64-python-scipy", a dependency of "mingw-w64-clang-x86_64-artiq" :: The following package cannot be upgraded due to unresolvable dependencies: mingw-w64-clang-x86_64-artiq :: Do you want to skip the above package for this upgrade? [Y/n]

Your System (omit irrelevant parts)

• Operating System: Windows 11, MSYS
• ARTIQ version: latest as of 23.07.2024 (8.8912+cd12600)

[thomasfire]

should be mingw-w64-x86_64-python-scipy

Well, it wouldn't fix the problem, because the artiq is clang64 package, and packages across platforms are not interchangeable.

For now you can either install the artiq from offline installer or install the previous scipy package from file: https://mirror.msys2.org/mingw/clang64/mingw-w64-clang-x86_64-python-scipy-1.12.0-1-any.pkg.tar.zst .

Here is what happened: https://github.com/msys2/MINGW-packages/pull/21416

[sbourdeauducq]

With LLVM 19 only released in September it sounds like we will be stuck with this bug for a while.

[sbourdeauducq]

We can just remove the scipy dependency (only for MSYS2, in extrapkgs) in the meantime, it's only used in one example and it's optional for the compiler.