randconfig build error with next-20140812, in net/netfilter/xt_TPROXY.c

Building with the attached random configuration file,

net/built-in.o: In function `tproxy_tg6_v1':
xt_TPROXY.c:(.text+0x4a8d5): undefined reference to `udp6_lib_lookup'
xt_TPROXY.c:(.text+0x4ab82): undefined reference to `udp6_lib_lookup'
xt_TPROXY.c:(.text+0x4ac3a): undefined reference to `udp6_lib_lookup'
net/built-in.o: In function `tproxy_tg_init':
xt_TPROXY.c:(.init.text+0x10b9): undefined reference to `nf_defrag_ipv6_enable'
make: *** [vmlinux] Error 1