https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104918
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Eyal Rozenberg from comment #2) > Why not store information in the compiled object saying which virtual items > are undefined? The vtable was missing because some virtual members were > purely-virtual, right? No, there are no pure virtual functions here. The vtable is missing because it will be emitted in the same object file as the key function, and the key function is not defined in the program. See the wiki link I gave.
