[PATCH] nsiproxy.sys: Only use SIN_ROUTER when available

[Gerald Pfeifer]

On Thu, 12 Aug 2021, Huw Davies wrote:
>> FreeBSD (and others) fall into the non-Linux case that is guarded by
>> HAVE_SYS_SYSCTL_H. Alas not all such systems feature SIN_ROUTER which
>> is used there, so tighten the guard.
> It seems a shame to lose this just for SIN_ROUTER.
> Does the attached patch help?

Yes, that also builds; thanks Huw!

(I just wasn't sure whether it'd make sense, logically.)

Gerald