CVS and Lispworks

This is more of a CVS question than a Lispworks question. When using 
defsystem, etc in Lispworks, (assuming I understand it correctly) 
Lispworks will recompile a fasl file if the timestamp for the .lisp file 
is later than the fasl file.  It would seem that CVS destroys the 
timestamp information of my files when I check them out of the 
repository.  Because of this, the relative time ordering of my files are 
preserved, so I'm forced to recompile my code every time I check out 
from CVS.   My CVS_RSH is set to ssh, and I was wondering if anyone 
knows how to get CVS to preserve timestamp when a file is checked out.

Sorry this is not a Lispworks question.