Buzybox编译出错

CC      networking/netstat.o
  CC      networking/nslookup.o
  CC      networking/ping.o
  CC      networking/pscan.o
  CC      networking/route.o
  CC      networking/slattach.o
  CC      networking/tcpudp.o
  CC      networking/tcpudp_perhost.o
  CC      networking/telnet.o
  CC      networking/telnetd.o
  CC      networking/tftp.o
  CC      networking/traceroute.o
  CC      networking/vconfig.o
  CC      networking/wget.o
  CC      networking/zcip.o
  AR      networking/lib.a
  CC      networking/libiproute/ip_parse_common_args.o
  CC      networking/libiproute/ipaddress.o
  CC      networking/libiproute/iplink.o
  CC      networking/libiproute/iproute.o
  CC      networking/libiproute/iprule.o
  CC      networking/libiproute/iptunnel.o
In file included from /opt/EmbedSky/4.3.3/bin/../arm-none-linux-gnueabi/libc/usr
/include/linux/if_tunnel.h:5,
                 from networking/libiproute/iptunnel.c:24:
/opt/EmbedSky/4.3.3/bin/../arm-none-linux-gnueabi/libc/usr/include/linux/ip.h:85
: error: redefinition of 'struct iphdr'
make[1]: *** [networking/libiproute/iptunnel.o] Error 1
make: *** [networking/libiproute] Error 2
  CC      networking/libiproute/iptunnel.o
In file included from /opt/EmbedSky/4.3.3/bin/../arm-none-linux-gnueabi/libc/usr
/include/linux/if_tunnel.h:5,
                 from networking/libiproute/iptunnel.c:24:
/opt/EmbedSky/4.3.3/bin/../arm-none-linux-gnueabi/libc/usr/include/linux/ip.h:85
: error: redefinition of 'struct iphdr'
make[1]: *** [networking/libiproute/iptunnel.o] Error 1
make: *** [networking/libiproute] Error 2
请问一下这是什么问题？？？

重新配置，make menuconfig，然后在net选项下取消iptunnel选项。