David Lechner 4adcaa4423 unix/mpthreadport: Fix Mac build by using SIGUSR1 if SIGRTMIN not avail.
Some platforms, like Apple, don't define SIGRTMIN, so fall back to SIGUSR1
in such a case.

Fixes #5659.
2020-02-20 00:30:08 +11:00
..
2020-02-07 11:24:06 +11:00