On 9 October 2012 01:39, Jack Howarth wrote: > The --enable-libstdcxx-time=yes configure option fails to validate the > presence of a usable nanosleep() call on darwin due to its use of pre-2008 > POSIX timers. As both nanosleep() and sched_yield() have always been available > on darwin, the attached patch simply defines _GLIBCXX_USE_NANOSLEEP and > _GLIBCXX_USE_SCHED_YIELD in config/os/bsd/darwin/os_defines.h. This also has > the advantage of effectively making --enable-libstdcxx-time=yes the default > on darwin. Regression tested on x86_64-apple-darwin12. > Okay for gcc trunk as well as gcc-4_7-branch/gcc-4_6-branch/gcc-4_5-branch?
The 4.5 branch is closed, so definitely not alright there. I don't like the sched_yield macro being set there because it's detected correctly by configure anyway, but I'm not going to labour that point any more. OK for trunk, it's not a regression so I'm not sure about the branches. If it doesn't cause problems on the trunk we can decide whether to apply it to the 4.7 branch later.
