The best approach is to use versioned namespaces, like boost::filesystem uses. If I'm not mistaken, inline namespace where introduced in C++11for this purpose. namespace boost { namespace thread_v1 { ... } } namespace boost { namespace thread_v2 { ... } } namespace boost { #if BOOST_THREAD_VERSION == 2 using thread_v2::thread; … #else using thread_v1::thread; ... #endif } The downside is that we don't have inline namespaces in C++03, which leaves a daunting task of putting all those "using xxx;" directives. Regards On 18/01/2012, at 00:00, Vicente J. Botet Escriba wrote:

Hi,

I want to provide two versions for Boost.Thread, one using Boost.Chrono and the other not. Boost.Thread is a non-header-only library so I guess that I need to build two libraries with different names. Is there already a library in Boost in the same context on which I can base my build design? What is the simples way to do this with Boost.build? Any pointers to the doc?

Thanks in advance, Vicente

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