[Bug libstdc++/59830] std::packaged_task throws exception

[b17c0de at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59830

--- Comment #2 from b17c0de at gmail dot com ---
(In reply to Jonathan Wakely from comment #1)
> <future> relies on mutexes and condition variables so you need to compile
> and link with -pthread

Thanks! That was indeed the problem. Whats with the strange error though?