> Actually building a backwards-compatible binary that references old symbol versions is a gigantic pain: you either have to use a whole old environment, apply

> Actually building a backwards-compatible binary that references old symbol versions is a gigantic pain: you either have to use a whole old environment, apply symbol versioning hacks on top of a new one and pray the resulting chimera works, or patch antique Glibc sources for new compilers and build a cross toolchain. This is the example I gave downthread. It's an everyday problem for a lot of developers targeting Linux, whereas targeting decades-old Windows versions is a breeze. Glibc isn't better, it just has different problems.