arduino ethernet libraries macro selector

Yes. But the problem was haft solve.

If I didn't get anymore the problem of duplicate include, I still can't chose witch dependency to use outside of the
libraries.

it's good to learn about translation units anyway

Because of this, I understand that it is not possible... It is a bit frustrating when I have a couple of libraries that ethernet dependency.

At least with macro, I can change now every reference inside one libraries with one keyword...

Thank a lot for the help. Always grateful.

Regards.
Nitrof