https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90361
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2019-05-06 Assignee|unassigned at gcc dot gnu.org |redi at gcc dot gnu.org Target Milestone|--- |9.2 Summary|Undefined symbols in |[9/10 Regression] Undefined |libstdc++ when building |symbols in libstdc++ when |with |building with |--with-default-libstdcxx-ab |--with-default-libstdcxx-ab |i=gcc4-compatible |i=gcc4-compatible Ever confirmed|0 |1 --- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- I haven't checked a build with that option for ages, so I can easily believe I've broken it. I'll take a look tomorrow.