freebsd build error (21)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: df4b9fa460ab snmp_mibII: use sysctl(3) to read min/max TCP..
git tree: freebsd-src
console output: https://syzkaller.appspot.com/x/log.txt?x=1145350c580000
dashboard link: https://syzkaller.appspot.com/bug?extid=54c1e57e7184582a8f59

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+54c1e5...@syzkaller.appspotmail.com

sys/netinet/tcp_syncache.c:1100:4: error: use of undeclared identifier 'sdt_mib_tcp_count_tcps_sc_spurcookie'; did you mean 'sdt_mib_tcp_count_tcps_sc_sendcookie'?
sys/netinet/tcp_syncache.c:1110:4: error: use of undeclared identifier 'sdt_mib_tcp_count_tcps_sc_spurcookie'; did you mean 'sdt_mib_tcp_count_tcps_sc_sendcookie'?
sys/netinet/tcp_syncache.c:1124:4: error: use of undeclared identifier 'sdt_mib_tcp_count_tcps_sc_failcookie'

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