build_win.bat dist output contains "The system cannot find the file specified"

[sogaiu]

With c82fd10 (and likely before), I've noticed that here, build_win.bat dist invocation output contains:

"The system cannot find the file specified".

It looks like this comes from:

copy janet.def dist\janet.def

That line seems to have been added in this commit.

Looking at the cloned janet repository directory after building (e.g. after invoking build_win.bat successfully), I don't see janet.def. May be I'm doing something wrong?

Perhaps there is nothing to be concerned about here but FWIW.

[bakpakin]

I don't think we really need janet.def anymore, it's an artifact from msvc to declare exported symbols. I think the better thing to do is just drop that from the build process.

Not an expert on this, but I would check microsoft documentation: https://learn.microsoft.com/en-us/cpp/build/exporting-from-a-dll-using-def-files?view=msvc-170

Basically, all exported symbols in Janet should be using __declspec(dllexport) (that is what the macro JANET_API resolves to on windows), so from the above documentation it is implied we don't need it.