Hi Vicente:

Thanks for the fast response.

Then there is a bug in documentation:

http://www.boost.org/doc/libs/1_50_0/doc/html/chrono/users_guide.html

Building an Executable that Uses Boost.Chrono

In addition to link with the Boost.Chrono library you need also to link with the Boost.System library. Once Boost.System will be configurable to be a header only using BOOST_SYSTEM_INLINED you will no need to link with it.

Thanks,

Dmitriy.