https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116777
--- Comment #9 from Sergey Fedorov <vital.had at gmail dot com> --- (In reply to Iain Sandoe from comment #7) > as noted in several places; the long-term solution for Darwin (in general > since there's an installed /usr/lib/libstdc++.6.dylib even on modern > systems) - is for use to use an inline namespace for libstdc++ (always). > When that is done, there's no conflict with the older installed .6.dylib s. That would be awesome indeed.