Module Definition in CVS

[Keshav]

Hi,
  I maintain 4 products through CVS for different platforms on the same
repository. I would like to give module definition for only one product
in $CVSROOT/modules file.
Suppose my products are
ABC
DEF
GHI
KLM

Now i want to give module definition like
ABCWin  and ABCMac which will checkout necessary library for corr
platforms but i don;t want to change anything in DEF, GHI or KLM.
So can i simply make changes in module like

WinLibs  -a   WinLibrary Path
MacLibs  -a  MacLibrary  Path

ABCWin -a  some path \
                  WinLibs

ABCMac -a Somepath \
                  MacLibs

Will it effect other products?
Thanks
keshav