There is a possibility to compile BOOST libraries in the so-called thread-aware mode. If so you will see \"...-mt...\" appeared in the library name. I can\'t understand wha
You can build Boost with multi-threading support or not (threading=multi|single). Boost.Thread force the build of the library by setting threading=multi in its Jamfile (the bjam equivalent of a Makefile).
So independently of whether you request threading support or not, Boost.Thread always provide it. Hence you can find both names.