https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96657
--- Comment #2 from James Hilliard <james.hilliard1 at gmail dot com> --- (In reply to Jonathan Wakely from comment #1) > I think r244051 caused libsupc++.a to depend on libstdc++.so for targets > that don't support lock-free atomics for int. Yeah, the current workaround we came up with was to force linking to libstdc++.so, but that's probably not a real fix for the root cause of the issue. I'm assuming the real fix would be to change libsupc++.a so that it includes the missing symbols?