Need help on ant cvs task

Hai,

  Currently I am trying to checkout the CVS repository from ant task in
SOLARIS.
  I got this exception   [cvs] Caught exception: cvs: not found.Is it
required cvs client setup in solaris?
 or any additional setup is required to execute cvs ant task from SOLARIS?

 Please help on this issue.

Thanks & Regards

S.Ananthan