This is also why I stopped using Gentoo. I used it regularly from 2004-2005 (which I admit was a very long time ago now) on my graphite G4, because support was very good for PowerPC. But then one day emerge suggested I update glibc. I don’t know if I botched the update or if it really was suggested in error, but I was just starting my studies in CS so I did not know what that particular “library” did and said yes. The update must have included an ABI change. Not surprisingly, the machine did not come back up after a reboot.

Gentoo was fun while it lasted (fluxbox user here!). I decided that MacOS X wasn’t so bad after all after that.