monitorings-plugin hangs on configure ICMPv6

[Stefan Bethke]

checking for ps syntax... /bin/ps axwo 'stat uid pid ppid vsz rss pcpu comm args'
checking for ping... /sbin/ping
checking for ping6... /sbin/ping6
checking for ICMP ping syntax... /sbin/ping -n -c %d %s
checking for ICMPv6 ping syntax... ^C===>  Script "configure" failed unexpectedly.

FreeBSD 9-stable, all ports up to date, inside a jail.

Any suggestions?


Thanks,
Stefan

-- 
Stefan Bethke <stb at lassitu.de>   Fon +49 151 14070811