id summary reporter owner description type status milestone component version severity resolution keywords cc 4059 config/compiler/gcc.hpp should not redefine BOOST_NO_EXCEPTIONS nigels@… John Maddock "Boost is detecting exception support (or not) and trying to redefine BOOST_NO_EXCEPTIONS which results in a warning if BOOST_NO_EXCEPTIONS is explicitly specified as a compilation flag. I would argue that BOOST_NO_EXCEPTIONS (from upstream) should be observed even if exception support is available. Trivial patch attached." Patches closed Boost 1.43.0 config Boost 1.42.0 Problem fixed