Ignore warnings when building with clang for now.

adjust the ADMINPORTDIR to match that of racoon (with which it'll want to talk)
fixes PR 41376

Enable WARNS=4 by default, except for:
cpuctl dumplfs hprop ipf iprop-log kadmin kcm kdc kdigest
kimpersonate kstash ktutil makefs ndbootd ntp pppd quot
racoon racoonctl rtadvd s

Enable WARNS=4 by default, except for:
cpuctl dumplfs hprop ipf iprop-log kadmin kcm kdc kdigest
kimpersonate kstash ktutil makefs ndbootd ntp pppd quot
racoon racoonctl rtadvd sntp sup tcpdchk tcpdmatch tcpdump
traceroute traceroute6 user veriexecgen wsmoused zic
(Mostly third-party applications)

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Disable debug.

Make racoonctl build again, sockmisc.c needs -DNOUSE_PRIVSEP in order
to not pull in all the rest of the racoon/ipsec code.

Switch to ipsec-tools for libipsec, setkey, and racoon. From
Emmanuel Dreyfus, with some small changes by me.