http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59472
Paul Scruby <paul at scruby dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |paul at scruby dot com --- Comment #2 from Paul Scruby <paul at scruby dot com> --- I have the same issue with my build of gcc4.8.2 I built libstdc++-v3 with '-flto -O3'. Now when my makefiles link to libstdc++ statically eg '-static-libstdc++ -flto -O3 -fuse-linker-plugin', I see these warnings too. Thanks, Paul