I'd have to check, but I'm 90% sure sccs is included in base, meaning it's 'required' (you can most definitely remove it or not compile it, but if it's in base

I'd have to check, but I'm 90% sure sccs is included in base, meaning it's 'required' (you can most definitely remove it or not compile it, but if it's in base it's installed by default so unless you can't remove elvis without bricking slackware these are functionally equivalent)