another netbsd-6 build failure

[Edgar Fuß <ef%math.uni-bonn.de@localhost>]

I emptied /usr/obj, rebuilt all the tools and now I get:

#      link  dnsblog/dnsblog
/usr/obj/tooldir.NetBSD-6.1_STABLE-amd64/bin/x86_64--netbsd-gcc    --sysroot=/usr/obj/destdir.amd64     -o dnsblog  dnsblog.o /usr/obj/external/ibm-public/postfix/lib/masterlib/libmaster.a /usr/obj/external/ibm-public/postfix/lib/global/libglobal.a /usr/obj/external/ibm-public/postfix/lib/dns/libdns.a /usr/obj/external/ibm-public/postfix/lib/util/libutil.a -lsaslc -lssl -lgssapi -lsqlite3 -lldap       -Wl,-rpath-link,/usr/obj/destdir.amd64/lib  -L=/lib
dnsblog.o: In function `dnsblog_service':
dnsblog.c:(.text+0x20b): undefined reference to `dns_lookup'
dnsblog.c:(.text+0x28d): undefined reference to `dns_rr_to_pa'
dnsblog.c:(.text+0x2ac): undefined reference to `dns_strtype'
dnsblog.c:(.text+0x429): undefined reference to `dns_rr_free'
collect2: ld returned 1 exit status
*** [dnsblog] Error code 1

What the hell is going on?