If you are running on MCS/PWF linux, then set up was as follows
ssh -X linux.pwf.cl.cam.ac.uk (or login from console) export SOCDAM=/ux/clteach/SOCDAM export SYSTEMC=$SOCDAM/systemc-2.2 export PATH=$PATH:$SOCDAM/bin
However, I have now (2013) upgraded to SystemC-2.3.0 and put the setup information in the Makefile.inc file which is included by the Makefile of each class/exercise.
If you are running on CL MPhil linux, then set up as follows
ssh -X slogin-mphil.cl.cam.ac.uk (or login from console) SYSCDIR=/usr/groups/han/clteach/systemc/systemc-2.2.0
The shell env vars can also be set at the head of each makefile, but this is redundant duplication.