[phobos] clock_gettime changes

[Jonathan M Davis]

On Saturday 20 November 2010 10:08:58 Sean Kelly wrote:
> Oops.  I'll disable the check for clock_gettime in core.sync.config.

Either keep it as is or version it so that MacOSX uses gettimeofday(), since 
MacOSX doesn't have gettimeofday(). In either case, it should use 
clock_gettime() on Linux on gettimeofday of MacOSX, and so dmd.conf should link 
in librt or Linux but not on MacOSX.

- Jonathan M Davis