The fact that address-family etc. are macros isn't explicit
in the specification section, but only indicated by the
reference implementation.  Wouldn't it be nice to have it
written in each API entry?

>From: Takashi Kato <xxxxxx@ymail.com>
Subject: Last call #2
Date: Mon, 15 Jul 2013 21:29:38 +0200

> Hi all,
>
> Is SRFI 106 good enough to be final? If you have any comment, please
> speak up now.
>
>
> Thanks,
>
> --
> _/_/
> Takashi Kato
> E-mail: xxxxxx@ymail.com
>