id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
8546	GCC 4.8 warns unused local typedef	Wei-Chiu Chuang <weichiu@…>	Marshall Clow	"This is a similar issue to Ticket #7242, except this affects more than one component in addition to static_assert: gcc 4.8.0 warns unused local typedefs with -Wall option added
and it pertains to boost/concept/detail/general.hpp, boost/lexical_cast.hpp, boost/algorithm/string/detail/finder.hpp

{{{
In file included from /scratch/chuangw/boost/boost-trunk/boost/mpl/aux_/integral_wrapper.hpp:22:0,
                 from /scratch/chuangw/boost/boost-trunk/boost/mpl/int.hpp:20,
                 from /scratch/chuangw/boost/boost-trunk/boost/mpl/lambda_fwd.hpp:23,
                 from /scratch/chuangw/boost/boost-trunk/boost/mpl/aux_/na_spec.hpp:18,
                 from /scratch/chuangw/boost/boost-trunk/boost/mpl/if.hpp:19,
                 from /scratch/chuangw/boost/boost-trunk/boost/lexical_cast.hpp:37,
                 from /scratch/chuangw/nightlybuild/mace-fullcontext/lib/Serializable.h:45,
                 from /scratch/chuangw/nightlybuild/mace-fullcontext/lib/CollectionSerializers.h:34,
                 from /scratch/chuangw/nightlybuild/mace-fullcontext/lib/mhash_map.h:57,
                 from /scratch/chuangw/nightlybuild/mace-fullcontext/lib/Accumulator.h:36,
                 from /scratch/chuangw/nightlybuild/mace-fullcontext/lib/Scheduler.cc:31:
/scratch/chuangw/boost/boost-trunk/boost/concept_check.hpp: In function 'void boost::function_requires(Model*)':
/scratch/chuangw/boost/boost-trunk/boost/concept/detail/general.hpp:71:20: error: typedef 'boost_concept_check51' locally defined but not used [-Werror=unused-local-typedefs]
       BOOST_PP_CAT(boost_concept_check,__LINE__)
                    ^
/scratch/chuangw/boost/boost-trunk/boost/preprocessor/cat.hpp:29:34: note: in definition of macro 'BOOST_PP_CAT_I'
 #    define BOOST_PP_CAT_I(a, b) a ## b
                                  ^
/scratch/chuangw/boost/boost-trunk/boost/concept/detail/general.hpp:71:7: note: in expansion of macro 'BOOST_PP_CAT'
       BOOST_PP_CAT(boost_concept_check,__LINE__)
       ^
/scratch/chuangw/boost/boost-trunk/boost/concept/assert.hpp:44:5: note: in expansion of macro 'BOOST_CONCEPT_ASSERT_FN'
     BOOST_CONCEPT_ASSERT_FN(void(*)ModelInParens)
     ^
/scratch/chuangw/boost/boost-trunk/boost/concept_check.hpp:51:7: note: in expansion of macro 'BOOST_CONCEPT_ASSERT'
       BOOST_CONCEPT_ASSERT((Model));
       ^

}}}

Suggested fix: add 
{{{
__attribute__((unused))
}}}
 if gcc version is >= 4.8.0"	Bugs	closed	To Be Determined	gil USE GITHUB	Boost Development Trunk	Problem	fixed		mateusz@…