https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85117
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED CC| |jakub at gcc dot gnu.org Resolution|--- |INVALID --- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- It is not a warning, just a message, and it is completely correct, older G++ versions would pass objects with such types differently than 7.1+.