https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77340
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |UNCONFIRMED Resolution|INVALID |--- --- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- Oh sorry, I misread the code. Both cpp files do use _GLIBCXX_DEBUG, let me check what's happening here.