C was already implemented on several quite different machines and OSs, Unix was already being distributed on the PDP-11, but the portability of the whole system was new
Dennis RitchieI can't recall any difficulty in making the C language definition completely open - any discussion on the matter tended to mention languages whose inventors tried to keep tight control, and consequent ill fate
Dennis RitchieC++ and Java, say, are presumably growing faster than plain C, but I bet C will still be around.
Dennis Ritchie