CGAL users discussion list

[Philipp Moeller <>]

smurf 
<>
 writes:

> Hi, 
>
>
>      I am using CGAL 4.0.2 with boost 1.51 and I get the following linker
> error. 
>
> error LNK2019: unresolved external symbol "public: static class
> boost::chrono::time_point<class boost::chrono::system_clock,class
> boost::chrono::duration<__int64,class boost::ratio<1,10000000> > > __cdecl
> boost::chrono::system_clock::now(void)" 
>
>     This turned up when I changed a Cartesian double kernel with an Exact
> one. Let me know if you need any extra information. Looking forward to your
> reply.

As of Boost 1.50 Boost.Thread depends on Boost.Chrono and you will need
to link against it. Alternatively you can define
BOOST_THREAD_DONT_USE_CHRONO before Thread is included [1].

In which way is Chrono non-standard?

Footnotes: 
[1]  
http://www.boost.org/doc/libs/1_50_0/doc/html/thread/build.html#thread.build.configuration