make menuconfig에서 
ping6 유틸리티를 선택하면 아래와 같은 에러가 뜨네요.
ipv6를 지원해야되서 꼭필요한 유틸리티인데 왜그런지 좀 알려주세요.



[root@localhost /root/busybox/busybox-New/busybox-1.2.2.1]# make menuconfig
  HOSTCC conf.o
  HOSTCC zconf.tab.o
  HOSTCC conf
  HOSTCC mconf.o
  HOSTCC lxdialog/checklist.o
  HOSTCC lxdialog/menubox.o
  HOSTCC lxdialog/textbox.o
  HOSTCC lxdialog/yesno.o
  HOSTCC lxdialog/inputbox.o
  HOSTCC lxdialog/util.o
  HOSTCC lxdialog/msgbox.o
  HOSTCC mconf
#
# using defaults found in .config
#

*** End of BusyBox configuration.
[root@localhost /root/busybox/busybox-New/busybox-1.2.2.1]# make
  HOSTLINK scripts/usage
  GEN .depend
  CC applets/applets.o
  CC applets/busybox.o
  CC applets/version.o
  AR cru applets/applets.a
  CC editors/vi.o
  AR cru editors/editors.a
  CC networking/ifupdown.o
  CC networking/ping6.o
  CC networking/wget.o
  AR cru networking/networking.a
  CC libbb/messages.o
  AR cru libbb/libbb.a
  LINK busybox_unstripped
/root/busybox/busybox-New/busybox-1.2.2.1/networking/networking.a(ping6.o): In function `pingstats':
ping6.c:(.text.pingstats+0x10): undefined reference to `hostent'
/root/busybox/busybox-New/busybox-1.2.2.1/networking/networking.a(ping6.o): In function `ping':
ping6.c:(.text.ping+0x3a): undefined reference to `create_icmp6_socket'
ping6.c:(.text.ping+0x5e): undefined reference to `xgethostbyname2'
ping6.c:(.text.ping+0x63): undefined reference to `hostent'
ping6.c:(.text.ping+0x195): undefined reference to `hostent'
collect2: ld returned 1 exit status
make[1]: *** [busybox_unstripped] 오류 1
make: *** [_all] 오류 2