[Bug libstdc++/54847] --enable-libstdcxx-time=yes doesn't find the function nanosleep() on darwin

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54847

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-10-08
            Summary|--enable-libstdcxx-time=yes |--enable-libstdcxx-time=yes
                   |doesn't find the functional |doesn't find the function
                   |nanosleep() on darwin       |nanosleep() on darwin
     Ever Confirmed|0                           |1

--- Comment #37 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-10-08 16:47:46 UTC ---
(In reply to comment #36)
> (In reply to comment #33)
> 
> > So is _GLIBCXX_USE_SCHED_YIELD defined on darwin?
> 
> Yes, passing --enable-libstdcxx-time=yes and allowing nanosleep() to be found 
> on darwin also results in...
> 
> ./c++/4.8.0/x86_64-apple-darwin12.2.0/bits/c++config.h:#define
> _GLIBCXX_USE_SCHED_YIELD 1
> ./c++/4.8.0/x86_64-apple-darwin12.2.0/i386/bits/c++config.h:#define
> _GLIBCXX_USE_SCHED_YIELD 1

The check for sched_yield has nothing to do with nanosleep, that must have
always ben defined.