       it does not play well with projects containing source files that need to
        be compiled with different compiler options. Boost.Log is one of such projects,
        some parts of its sources contain optimizations for modern CPUs and will
        not run on older CPUs. Enabling LTO for Boost.Log will produce binaries incompatible
        with older CPUs (GCC bugs <a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61043" target="_top">61043</a>,
        <a href="https://gcc.gnu.org/bugzilla/show