id summary reporter owner description type status milestone component version severity resolution keywords cc 4364 boost/mpl warning cleanup tatu.kilappa@… Aleksey Gurtovoy "Some definitions in boost/mpl/has_xxx.hpp are defined to 1 on conditions, but never defined to 0. This causes warnings when they're later checked as truth values instead of defined(). Attached patch defines them as 0 if the workaround does not match. Another approach would be to use #if defined() later, this is probably better." Patches closed Boost 1.44.0 mpl Boost Development Trunk Cosmetic fixed warning