https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108884
Patrick Palka <ppalka at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |ppalka at gcc dot gnu.org --- Comment #1 from Patrick Palka <ppalka at gcc dot gnu.org> --- #1 is neither a non-template friend declaration with a requires-clause nor a friend function template with a constraint that depends on a template parameter from an enclosing template, so it seems to me [temp.friend]/9 doesn't apply here?