[Bug libstdc++/90361] Undefined symbols in libstdc++ when building with --with-default-libstdcxx-abi=gcc4-compatible

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90361

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I can link correctly with -D_GLIBCXX_USE_CXX11_ABI=0 have yet to check a build
with the gcc4 ABI as default.