Build::expand() prints the filename as a warning on windows about cc-rs HOT 4 OPEN

I did search for duplicates but I now found #296, which does nothing with this on the grounds that it doesn't come up often.

Well I guess I'm telling you that it does come up a bit more often; but I would acknowledge that two reports in five-ish years isn't very many.

from cc-rs.

Is there a better way for us to distinguish this from actual warnings than just comparing it to the file name (which is pretty annoying...)

from cc-rs.

maybe just assume that the first line of output is the filename?

If I'd found the earlier issue choosing to do nothing about this first then I'd likely not have bothered to raise it again: continuing to do nothing doesn't seem like an unreasonable choice.

from cc-rs.

I think checking that it is the same is better than just assuming it is because I'm not 100% confident ignoring the first line will be right in every situation. But, yeah, it would be much better if there were some principled way to filter the output.

from cc-rs.