[Bug libstdc++/90361] [9/10 Regression] Undefined symbols in libstdc++ when building with --with-default-libstdcxx-abi=gcc4-compatible

[redi at gcc dot gnu.org]

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

--- Comment #12 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Yes, sorry I missed the deadline for 9.2.