https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86751 Bug 86751 depends on bug 87822, which changed state.
Bug 87822 Summary: [6/7/8/9 Regression] Binary incompatibility in std::pair introduced by PR 86751 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87822 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED