Difficulties with tcpdrop on FreeBsd 5.3

[Sergey]

Hello all, i have a question:

OS: FreeBSD 5.3

How to install tcpdrop from /usr/src/usr.sbin/tcpdrop/

when i do make, i receive error:

tcpdrop.c:43: error: `TCPCTL_DROP' undeclared (first use in this function)
tcpdrop.c:43: error: (Each undeclared identifier is reported only once
tcpdrop.c:43: error: for each function it appears in.)
*** Error code 1

How to enable TCPCTL_DROP syscall !?

  

-- 
Best regards,
 Sergey                          mailto:fenix at intercollab.net