mozilla/rust — pull request #14205 by thestinger (2014-05-14 19:59:51+00:00)
Title: use sched_yield on linux and freebsd

pthread_yield is non-standard, while sched_yield is POSIX

The Linux documentation recommends using the standard function. This is
the only feature we're currently using that's present in glibc but not
in musl.