Nagios plugins didn work on solaris


I have installed nagios plugins 1.4.11 from src on Solaris 10 server. All compiled successfully. But when i try to execute some check command, i dont have rezult. For example:
-bash-3.00$ ./check_disk -c 40% -w 20% -p /var
DISK UNKNOWN: Must set a threshold value before using -p
This command works on my linux server successfully. Also i have such error:
-bash-3.00$ ./check_disk --help
Segmentation Fault