https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42540
--- Comment #17 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Eyal Rozenberg from comment #16) > I'm not quite sure what a key function is, Then read the link I gave you in PR 104918 comment 1. > Not just learners. If you have a large class with many methods, whose > implementation is spread across many files, it can take quite a bit of time > to figure out which method implementation is missing. The first one. They key function is the first non-inline, non-pure virtual function. Read the wiki page. I didn't write that page and suggest you read it just for fun. The linker could easily say that, with no changes from GCC. That belongs in the binutils bugzilla though.
