can skip right to the discussion of =CVS= changes. However, if you're adding a whole new external package, there are a few more steps (both for =autoconf= and =imake=, so read -on... +on... In either case, before using your new external you should run +=./build_init= to repopulate the cf files with correct info. To add a whole new kind of external, you've got to understand a bit about that =[soft]= argument (the requirement level), modify