id summary reporter owner description type status milestone component version severity resolution keywords cc 5349 BOOST_PREVENT_MACRO_SUBSTITUTION missing from Boost Macro reference Paul A. Bristow John Maddock "BOOST_PREVENT_MACRO_SUBSTITUTION A definition/explanation appears to be missing from http://www.boost.org/doc/libs/1_46_0/libs/config/doc/html/boost_config/boost_macro_reference.html Or if it is described elsewhere, my Google search did not pick up a definition on the first page. The above seems the obvious place? " Bugs closed To Be Determined config Boost 1.46.0 Cosmetic fixed BOOST_PREVENT_MACRO_SUBSTITUTION