[patch libstdc++] Optimize synchronization in std::future if futexes are available.

[Hans-Peter Nilsson]

On Fri, 16 Jan 2015, pinskia@gmail.com wrote:
> > On Jan 16, 2015, at 9:57 PM, David Edelsohn <dje.gcc@gmail.com> wrote:
> >
> > This patch has broken bootstrap on AIX
> >
> > May I mention that this really should have been tested on systems
> > other than x86 Linux.
>
> It also broke all newlib targets too. So you could have tested one listed in the sim-test web page.

For those interested, PR64638.

brgds, H-P