[Bug libstdc++/57060] std::this_thread::get_id() == std::thread::id::id() without -pthread

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57060

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2014-12-21
   Target Milestone|---                         |5.0
     Ever confirmed|0                           |1

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Another option would be to return a non-zero id when !__gthread_active_p()
instead of calling pthread_self()