Locking error in the installation of Samba

[amer.nasir at cressoft.com.pk]

Hi!
I m trying to install samba-2.0.6 on solaris 7.
When i run configure script, it gives me an error

checking configure summary
ERROR: No locking available. Running Samba would be unsafe
configure: error: summary failure. Aborting config

it also doesnot find "fcntl"

What do u ppl suggest. What kind of locking is on my system.


Thanks

Regards
Amer!