Yeah and nothing ever lets you pick which versions to link to. You're going to get the latest ones and you better enjoy that. I found it out the hard way recently when I just wanted to do a perfectly normal thing of distributing precompiled binaries for my project. Ended up using whatever "Amazon Linux" is because it uses an old enough glibc but has a new enough gcc.
It's not at all straightforward, it should be the kind of thing that's just a compiler flag, as opposed to needing to restructure your build process to support it.
