Even though rcs and sccs were in every Unix distro and some other competitors existed their use was not common back then. Rich Pixley deserves all the credit f

Even though rcs and sccs were in every Unix distro and some other competitors existed their use was not common back then. Rich Pixley deserves all the credit for getting gnu sources into source control, specifically CVS which at the time was the latest hotness (it was not yet client server; that was added later by IIRC Ian Taylor after some unfortunate incidents). John and I placed some absurd hoops that needed to be jumped through in order for source control to be adopted, all of which Rich wisely just ignored.