The ABI status of ELF hash tables

I don't think I've ever seen a game ship its own copy of libc, but I have seen lots of them ship their own copies of libstdc++ (and various other libraries).

The result was invariably that the game stopped working sooner or later, because its copies of those libraries were too old for other things (usually GPU driver components) mapped into the process. Removing the games' copies of the libraries made them work again.

libc would be even more likely to hit this, since basically everything links against it, it never changes SONAME, and it often bumps the symbol version of existing ABI symbols.