D-Programming-Language/druntime — pull request #981 by jmdavis (2014-10-04 10:21:01+00:00)
Title: Add CLOCK_REALTIME_FAST for FreeBSD.

I got the value from here:

http://fxr.watson.org/fxr/source/sys/time.h

This is required for Phobos pull# 2584.