https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59472
--- Comment #5 from Paul Scruby <paul at scruby dot com> --- Is there a patch to fix or suppress the warnings when link-time optimizing to libstdc++.a ? I'm using gcc4.8.2, but I'm happy to upgrade to gcc4.9 if this release is more likely to get fixed first?