ipfw-user port porblem

[root@orange]/usr/ports/net/ipfw-user#make
===>   ipfw-user-0.1 depends on file: /usr/local/sbin/pkg - found
===>  Extracting for ipfw-user-0.1
=> SHA256 Checksum OK for 20120813-ipfw-user.tgz.
===>  Patching for ipfw-user-0.1
===>   ipfw-user-0.1 depends on executable: gmake - found
===>  Configuring for ipfw-user-0.1
===>  Building for ipfw-user-0.1
Building userspace ...
gmake[1] : on entre dans le répertoire « /usr/ports/net/ipfw-user/work/ipfw-user/ipfw »
gmake[1]: *** Aucune règle pour fabriquer la cible « all ». Arrêt.
gmake[1] : on quitte le répertoire « /usr/ports/net/ipfw-user/work/ipfw-user/ipfw »
gmake: *** [ipfw] Erreur 2
*** Error code 1

Stop in /usr/ports/net/ipfw-user.
[root@orange]/usr/ports/net/ipfw-user#make extract
===>   ipfw-user-0.1 depends on file: /usr/local/sbin/pkg - found
===>  Extracting for ipfw-user-0.1
=> SHA256 Checksum OK for 20120813-ipfw-user.tgz.
[root@orange]/usr/ports/net/ipfw-user#cd work/ipfw-user/
[root@orange]/usr/ports/net/ipfw-user/work/ipfw-user#gmake
Building userspace ...
gmake[1] : on entre dans le répertoire « /usr/ports/net/ipfw-user/work/ipfw-user/ipfw »
(cd ../objs; gmake -f ../Makefile.kipfw include_e)
gmake[2] : on entre dans le répertoire « /usr/ports/net/ipfw-user/work/ipfw-user/objs »
Building /usr/ports/net/ipfw-user/work/ipfw-user/objs/../objs/include_e ...
gmake[2] : on quitte le répertoire « /usr/ports/net/ipfw-user/work/ipfw-user/objs »
   CC ipfw2.c
   CC dummynet.c
   CC main.c
   CC ipv6.c
   CC altq.c
   CC ../extra/glue.c
   LD  ipfw
gmake[1] : on quitte le répertoire « /usr/ports/net/ipfw-user/work/ipfw-user/ipfw »
Building datapath ...
gmake[1] : on entre dans le répertoire « /usr/ports/net/ipfw-user/work/ipfw-user/objs »
   CC ../sys/netinet/ipfw/ip_fw2.c
   CC ../sys/netinet/ipfw/ip_fw_pfil.c
   CC ../sys/netinet/ipfw/ip_fw_sockopt.c
   CC ../sys/netinet/ipfw/ip_fw_dynamic.c
   CC ../sys/netinet/ipfw/ip_fw_table.c
   CC ../sys/netinet/ipfw/ip_fw_log.c
   CC ../sys/netinet/ipfw/ip_dummynet.c
   CC ../sys/netinet/ipfw/ip_dn_io.c
   CC ../sys/netinet/ipfw/ip_dn_glue.c
   CC ../sys/netinet/ipfw/dn_heap.c
   CC ../sys/netinet/ipfw/dn_sched_fifo.c
   CC ../sys/netinet/ipfw/dn_sched_wf2q.c
   CC ../sys/netinet/ipfw/dn_sched_rr.c
   CC ../sys/netinet/ipfw/dn_sched_qfq.c
   CC ../sys/netinet/ipfw/dn_sched_prio.c
   CC ../sys/net/radix.c
etc....