$env:Path left with the wrong link.exe being found first

[dabrahams]

This run demonstrates. Follow the link to the workflow file if you need to reproduce elsewhere. Maybe you could use this as a unit test case for this action.

[dabrahams]

FYI, C:\mingw64\… is also taking precedence.

[dabrahams]

The tip of this branch contains further diagnostics in .github/workflows/test.yml

[dabrahams]

And despite the red X, the output of this run shows that setting up vsdevenv first fixes the problem.