> The license of libtree is a bit funny: _Library_ GPL _2_ (which doesn't exist)Well that'd be <http://www.gnu.org/licenses/old-licenses/lgpl-2.0.html>.
> I have asked upstream for clarification on this:
>
> https://github.com/fbuihuu/libtree/issues/7
I've been trying to get rid of GPLv2-only code, so I'm not planning
on merging any new code with such license anyway.