Hey hey,

> Hall should come in handy to build those libs!  I guess people will be
> happy to have them available outside Guix.
>
>> It would help us getting rid of (guix config) as you proposed.

So as you suggested I created "guile-zlib" and "guile-lzlib" which was
the easy part. The other part is the hard to digest, attached patch.

I tested it running "make check", "make as-derivation", "./pre-inst-env
guix build guix". Hope I didn't miss something.

Please, tell me what you think :)

Thanks,

Mathieu