[Bug libstdc++/52680] New: std::this_thread::sleep_for #ifdef'd out by _GLIBCXX_USE_NANOSLEEP

["mkline at cs dot wisc.edu" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52680

             Bug #: 52680
           Summary: std::this_thread::sleep_for #ifdef'd out by
                    _GLIBCXX_USE_NANOSLEEP
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: mkline@cs.wisc.edu


Created attachment 26963
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26963
A short test program (13 lines) illustrating the problem

Inside the thread header for C++11, _GLIBCXX_USE_NANOSLEEP is not defined on my
system, causing std::this_thread::sleep_for to be undefined. However, defining
it manually using -D_GLIBCXX_USE_NANOSLEEP causes the attached test program to
compile successfully and behave as intended.

I am using Ubuntu 10.04 LTS. The attached test code was successfully compiled
using
g++ -std=c++11 test.cpp -pthread -D_GLIBCXX_USE_NANOSLEEP