On Sun, Dec 23, 2007 at 01:45:14AM -0500, Tom Lane wrote:
>
> The primary reason things work like that is that there are boatloads of
> machines that are marginally misconfigured. For instance, userland
> thinks there is IPv6 support when the kernel thinks not (or vice versa).
Not only "marginally misconfigured", but "broken as shipped", in the case of
some OSes. And in those cases, you can't even fix it.
A