Changing the default .zoo extractor

[Jonathan Schleifer <js%nil.im@localhost>]

Hi!

We have a few distfiles that need archives/zoo to unpack. However, archivers/zoo is dead upstream and has known exploitable bugs.

I have written my own implementation of Zoo as part of devel/objfw, which also comes with a command line util called ofarc using said implementation. I'd like to propose to switch the extractor for .zoo files over to devel/objfw. The downside is that devel/objfw has a dependency on clang right now, albeit being technically possible to build with GCC (with a reduced feature set, which breaks software out there needing those features - but we could add a separate "objfw-gcc" package or something that would have a fully working ofarc).

While at it, we could also switch over .lha to devel/objfw if we want to, as the current lha doesn't seem much maintained either and has a weird license that is only available in Japanese.

Thoughts?

-- 
Jonathan