The kernel and the C library as a single project

What, no one remembers "Linux libc" and the long messy transition from "libc5" (Linux libc) to "libc6" (upstream GNU libc)? Here's the relevant excerpt from Rick Moen's classic essay on free software forking, at [http://linuxmafia.com/faq/Licensing_and_Law/forking.html]:

> When Linus and his fellow programmers started work on the GNU/Linux system (using Linus's "Linux" kernel), they looked around for free-software C libraries, and chose Stallman's. However, they decided that FSF's library (then at version 1-point-something) could/should best be adapted for the Linux kernel as a separately-maintained project, and so decided to fork off their own version, dubbed "Linux libc"... but in 1997-98 they noticed something disconcerting: FSF's glibc, although it was still in 1-point-something version numbers, had developed some amazing advantages... even though their fork seemed a good idea at the time, it had been a strategic mistake. Adding all of FSF's improvements to their mutant version would be possible, but it was easier just to re-standardise onto glibc.