CVS Update: no such internal variable

[Sandra Humphrey]

After checkin, I want a working repository "CHIP_HOME" to be updated.
This variable CHIP_HOME changes depending on the chip the eng. is
working on.  I don't want to specify the location of chip_home in the
.cvsrc because they could be working on multiple chips everyday and
therefore would have to go modify this file each time they wanted to
check something in.
modules file:
CVSROOT CVSROOT
CHIP_HOME /proj/asic5/IPT_TEST/rel_1/SLH
loginfo file:
SLH/RTL (date; cat; (sleep 2; cd $CHIP_HOME/RTL; cvs -q update -d) &) >>
$CVSROOT/CVSROOT/updatelog 2>&1

My program checks for the existence of CVSROOT and CHIP_HOME before they
can run the commit command.

What are my options here? Is there a way to specify where the .cvsrc
file is located?

Sandra Humphrey