[boost] [chrono] mac thread_clock support

Subject: [boost] [chrono] mac thread_clock support
From: Chris Brown (ccbrown112_at_[hidden])
Date: 2013-12-12 01:53:11

I noticed that chrono doesn't seem to support thread_clock on mac (the 
posix implementation doesn't work for it) so I wrote up an implementation.

https://github.com/boostorg/chrono/pull/1

I was pretty surprised this didn't already exist, but haven't been able 
to find anything in the mailing list or trac regarding it. Curious to 
hear if there was a reason to avoid this implementation or if it's just 
something no one got around to.

Posting here for visibility since the git / Github workflow is 
relatively new to a lot of people here.