https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60551
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|__attribute__((used)) is |__attribute__((unused)) is |ignored for 'static' |ignored for 'static' |function declarations |declarations --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- friend has nothing to do with the warning. Even this warns: static void friendly_accessor (void) __attribute__((unused));