* Naroff integrated Objective-C directly into the C compiler NeXT was using, the open source GNU C compiler, GCC, working closely with Richard Stallman
Probably #1 on Stallman's list of "things I regret most".
What's to regret? Stallman, until he consulted with a lawyer, thought it was going to be OK for Next to not open source the Objective-C part at all. After consulting with a lawyer he asked Apple to open source it, so I would presume he's happy with the outcome?
Probably #1 on Stallman's list of "things I regret most".