Earlier quoted context omitted.
Ok, so you agree with him except where he says “in a VM” because you say you can also do it “in a container”. Of course, you both leave out that you could do it “on real hardware”. But none of this matters. The real point is that you have to compile on an old distro. If he left out “in a VM”, you would have had nothing to correct.
I'm not disagreeing that glibc symbol versioning could be better. I raised it because this is probably one of the few valid use cases for containers where they would have a large advantage over a heavyweight VM. But it's like complaining that you might need a VM or container to compile your software for Win16 or Win32s. Nobody is using those anymore. Nor really old Linux distributions. And if they do, they're not rea…
But does the lack of a stable ABI have any (negative) effect on the reliability of the platform?