Vetting the cargo

> The lines up pretty well with Linux's "stable userspace ABI" and the mess of the userland ABI story above the absolute basics (glibc, X11, and a handful of others).

The obvious (and quite likely broken) way for linux to deal with this is to refactor the obsolete ABI into a module. Said module then gets (mostly) abandoned, and dropped when nobody notices.

Of course, the problem with this is when it's core functionality that can't (practicably) be modularised.

Cheers,
Wol