Does any C library implement C11 threads for GNU/Linux?

Question

There have been a lot of questions about C11 and C11 threading, but I don\'t see a definitive answer anywhere:

Does any C

Answer 1

musl now (as of Sep 2014-ish) implements C11 threads!

According to this recent musl mailing list post and other conversation on that list in Jul-Sep 2014, it appears that the musl library now (as of 2014-09-07) implements the C11 threads interface, though the comparison chart; does not as of this writing reflect this.

Since this question is re-opened, I moved this content to a proper answer.