👷‍♀️ Clang windows builds to solidify it as a real platform!

[ThePhD]

CI for Clang. On Windows!! With a new file.

Description

In my last pull request (#3060), it was said I should make Clang a Real Platform™️ by putting it in the CI. That's what this does!

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.34%. Comparing base (daadf42) to head (3b9f3e5).

Additional details and impacted files

@@           Coverage Diff           @@
##            devel    #3064   +/-   ##
=======================================
  Coverage   91.34%   91.34%           
=======================================
  Files         202      202           
  Lines        8869     8869           
=======================================
  Hits         8101     8101           
  Misses        768      768           

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[horenmar]

-- Building for: Visual Studio 17 2022
-- The CXX compiler identification is MSVC 19.44.35222.0
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: C:/Program Files/Microsoft Visual Studio/2022/Enterprise/VC/Tools/MSVC/14.44.35207/bin/Hostx64/x64/cl.exe - skipped

That does not look like Clang.

[ThePhD]

This is now looking like clang, finally:

...
-- The CXX compiler identification is Clang 20.1.8 with GNU-like command-line
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: C:/Program Files/LLVM/bin/clang++.exe - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
...

[rajpratham1]

This looks like a useful addition. Expanding CI to cover Clang on Windows strengthens support for a platform/compiler combination that can expose issues not seen with MSVC or Linux Clang. The workflow builds both Debug and Release configurations across multiple language standards and runs the full test suite, making it a low-risk infrastructure improvement. Assuming the existing runner image continues to provide clang++ as expected, this looks good to me.