http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53455
--- Comment #15 from Niall Douglas <s_gccbugzilla at nedprod dot com> 2012-06-14 13:24:58 UTC --- Agreed, but it is highly unlikely to happen anytime soon unless a new sponsor turns up. BPL needs a fair bit of post-bitrot work as it is. Niall (In reply to comment #12) > Maybe someone should look at fixing these warnings in Boost.Python, or ensure > -fno-strict-aliasing is used > > "g++" -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -m64 > -pthread -fPIC -DBOOST_ALL_NO_LIB=1 -DBOOST_PYTHON_SOURCE -DNDEBUG -I"." > -I"/apps/infra/3rd-party/gcc-4.4-64/python-2.6.5/include/python2.6" -c -o > "bin.v2/libs/python/build/gcc-4.7.0/release/threading-multi/object/enum.o" > "libs/python/src/object/enum.cpp" > > libs/python/src/object/enum.cpp: In function 'boost::python::api::object > boost::python::objects::{anonymous}::new_enum_type(const char*, const char*)': > libs/python/src/object/enum.cpp:150:11: warning: dereferencing type-punned > pointer will break strict-aliasing rules [-Wstrict-aliasing] > > "g++" -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -m64 > -pthread -fPIC -DBOOST_ALL_NO_LIB=1 -DBOOST_PYTHON_SOURCE -DNDEBUG -I"." > -I"/apps/infra/3rd-party/gcc-4.4-64/python-2.6.5/include/python2.6" -c -o > "bin.v2/libs/python/build/gcc-4.7.0/release/threading-multi/object/class.o" > "libs/python/src/object/class.cpp" > > libs/python/src/object/class.cpp: In function 'PyObject* > boost::python::objects::static_data()': > libs/python/src/object/class.cpp:211:11: warning: dereferencing type-punned > pointer will break strict-aliasing rules [-Wstrict-aliasing] > libs/python/src/object/class.cpp: In function 'boost::python::type_handle > boost::python::objects::class_metatype()': > libs/python/src/object/class.cpp:319:11: warning: dereferencing type-punned > pointer will break strict-aliasing rules [-Wstrict-aliasing] > libs/python/src/object/class.cpp: In function 'boost::python::type_handle > boost::python::objects::class_type()': > libs/python/src/object/class.cpp:473:11: warning: dereferencing type-punned > pointer will break strict-aliasing rules [-Wstrict-aliasing] > gcc.compile.c++ > bin.v2/libs/python/build/gcc-4.7.0/release/threading-multi/object/life_support.o > > "g++" -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -m64 > -pthread -fPIC -DBOOST_ALL_NO_LIB=1 -DBOOST_PYTHON_SOURCE -DNDEBUG -I"." > -I"/apps/infra/3rd-party/gcc-4.4-64/python-2.6.5/include/python2.6" -c -o > "bin.v2/libs/python/build/gcc-4.7.0/release/threading-multi/object/life_support.o" > "libs/python/src/object/life_support.cpp" > > libs/python/src/object/life_support.cpp: In function 'PyObject* > boost::python::objects::make_nurse_and_patient(PyObject*, PyObject*)': > libs/python/src/object/life_support.cpp:94:9: warning: dereferencing > type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] > libs/python/src/object/life_support.cpp:96:9: warning: dereferencing > type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] > gcc.compile.c++ > bin.v2/libs/python/build/gcc-4.7.0/release/threading-multi/object/function.o > > "g++" -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -m64 > -pthread -fPIC -DBOOST_ALL_NO_LIB=1 -DBOOST_PYTHON_SOURCE -DNDEBUG -I"." > -I"/apps/infra/3rd-party/gcc-4.4-64/python-2.6.5/include/python2.6" -c -o > "bin.v2/libs/python/build/gcc-4.7.0/release/threading-multi/object/function.o" > "libs/python/src/object/function.cpp" > > libs/python/src/object/function.cpp: In constructor > 'boost::python::objects::function::function(const > boost::python::objects::py_function&, const boost::python::detail::keyword*, > unsigned int)': > libs/python/src/object/function.cpp:108:9: warning: dereferencing type-punned > pointer will break strict-aliasing rules [-Wstrict-aliasing] > libs/python/src/object/function.cpp:110:9: warning: dereferencing type-punned > pointer will break strict-aliasing rules [-Wstrict-aliasing]