ipfilter cannot be build within because warning's are present

[Darren Reed]

Victor M. Blood wrote:
> Hi, All.
>
> I try to use options in kernel instead of a module build of the
> ipfilter and got error then kernel builds.
>   

Thanks for bringing this to my attention, I'll attend to it shortly.

FWIW, a "buildworld" and "buildkernel" (for GENERIC) completed
cleanly before this commit but obviously that doesn't catch
everything.

Cheers,
Darren