MinGW Windows Boost C++ library for the win64 target
Boost provides free peer-reviewed portable C++ source libraries. The emphasis is on libraries which work well with the C++ Standard Library, in the hopes of establishing "existing practice" for extensions and providing reference implementations so that the Boost libraries are suitable for eventual standardization. (Some of the libraries have already been proposed for inclusion in the C++ Standards Committee's upcoming C++ Standard Library Technical Report.)
You can contact the maintainers of this package via email at
mingw-boost dash maintainers at fedoraproject dot org.