id summary reporter owner description type status milestone component version severity resolution keywords cc 2943 BOOST_HAS_VARIADIC_TMPL not defined for g++. Daniel James John Maddock I've found another config regression. BOOST_HAS_VARIADIC_TMPL used to be defined in two different places but one of them was removed in [51444] so it's no longer defined for gcc with C++0x support. Patch attached. Bugs closed Boost 1.39.0 config Boost 1.38.0 Problem fixed