id summary reporter owner description type status milestone component version severity resolution keywords cc 8723 [CONCEPT_CHECK] GCC 4.8 warns unused local typedef chris5287@… jsiek "GCC 4.8+ warns unused local typedef... {{{#!c++ ./boost/concept/detail/general.hpp:71:20: warning: typedef ‘boost_concept_check173’ locally defined but not used [-Wunused-local-typedefs] BOOST_PP_CAT(boost_concept_check,__LINE__) }}} Could we suppress the warning by append '!__attribute!__((unused))' {{{#!c++ ./boost/concept/detail/general.hpp:71 BOOST_PP_CAT(boost_concept_check,__LINE__) __attribute__((unused)); }}}" Bugs closed Boost 1.54.0 concept_check Boost Development Trunk Not Applicable duplicate