Boost C++ Libraries: Ticket #13616: "likely" is c++2a-keyword used by gcc 8.1.1 but used as identifier https://svn.boost.org/trac10/ticket/13616 <p> In new <a class="ext-link" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0479r5.html"><span class="icon">​</span>C++2a-Specification</a> new attribute-tokens, "likely" and "unlikely", are introduced. In GCC 8.1.1 this proposed feature has already been implemented. </p> <p> So using GCC8.1.1+ boost (version 1.67) won't compile anymore since "likely" is used as identifier in different header files. For example: </p> <p> boost/date_time/special_values_parser.hpp:105:17 boost/date_time/time_parsing.hpp:312:19 </p> en-us Boost C++ Libraries /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/13616 Trac 1.4.3