[steilpass]

As far as I can see it's currently in master: http://git.musl-libc.org/cgit/musl/commit/?id=3d6e2e477ced37...

But has not been released yet: http://wiki.musl-libc.org/wiki/Roadmap#musl_1.1.13 http://git.musl-libc.org/cgit/musl/