on BSD/OS 4.0.1, having problem compiling openssh 3.1p1.

Configured with ./configure --with-ipv4-default

make error:

gcc -g -O2 -Wall -Wpointer-arith -Wno-uninitialized -I. -I. 
-DSSHDIR=\"/usr/local/etc\"  -D_PATH_SSH_PROGRAM=\"/usr/local/bin/ssh\" 
-D_PATH_SSH_ASKPASS_DEFAULT=\"/usr/local/libexec/ssh-askpass\" 
-D_PATH_SFTP_SERVER=\"/usr/local/libexec/sftp-server\" 
-D_PATH_SSH_PIDDIR=\"/var/run\" 
-DSSH_RAND_HELPER=\"/usr/local/libexec/ssh-rand-helper\" -DHAVE_CONFIG_H -c
ssh-agent.c
ssh-agent.c: In function `lookup_identity':
ssh-agent.c:135: warning: implicit declaration of function `TAILQ_FOREACH'
ssh-agent.c:135: `next' undeclared (first use this function)
ssh-agent.c:135: (Each undeclared identifier is reported only once
ssh-agent.c:135: for each function it appears in.)
ssh-agent.c:135: syntax error before `{'
ssh-agent.c:138: warning: control reaches end of non-void function
ssh-agent.c: At top level:
ssh-agent.c:111: warning: `idtab_init' defined but not used
ssh-agent.c:131: warning: `lookup_identity' defined but not used
*** Error code 1

Stop.