> As you said yourself, your claims are out-of-date. AFAIK, the only three remaining language implementations that matter today that are not open source would be Oracle Java (very close to OpenJDK), Apple's LLVM form (naturally very close to real LLVM), and Microsoft's C++ compiler (AFAIK generally considered to be crap).
Not a much of experience in the embedded market, high integrity market, medical devices, hardware design, Fintech, HPC or deployments that require certified compilers, right?
That's certainly a difference from much of the open source world, with half the mobile phone market based on Android, for example. The market for certified compilers in the grand scheme is very small in comparison, so it could be argued that in general languages and programming is an area where open source has been wildly successful.
And that makes sense—the tools that developers use being metatools that they can work on and improve, targeted directly at the audience that can work on them—I'd expect nothing less than near complete adoption of such a thing.
Not a much of experience in the embedded market, high integrity market, medical devices, hardware design, Fintech, HPC or deployments that require certified compilers, right?