Re: IPv6 Support for INET/CIDR types.

> > my proposal is that we do away with the modified pgsql mirrors of these
> > functions and teach the INET and CIDR handlers to "wrap" the BIND functions
> > in a way that modifies the presentation format to be postgres-compatible.
> > that way postgres can import new versions of, or use LIBC versions of,
> > the BIND functions without having to worry about local modifications to them.
>
> Are we sure the Bind library versions are going to be on all the OS's we
> support?

no.  that's why there should be a copy in the postgres sources, just in case.
and that's why "./configure" has to learn how to choose whether to use the
system supplied versions or the internal bootstrapping versions.