libstdc++ wants clock_gettime without libpthread

[Paul Eggert]

On 10/18/2012 05:22 PM, Roland McGrath wrote:
> 1. Just move clock_* calls into libc.  

This sounds like the best thing to do in the long run.
It's long mystified me why clock_gettime is in a special
library, while gettimeofday is in libc.  Well-maintained
GNU apps these days tend to prefer clock_gettime anyway,
if they can stomach the hassle of linking to -lrt.