https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78724
Richard Smith <richard-gccbugzilla at metafoo dot co.uk> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |richard-gccbugzilla@metafoo | |.co.uk --- Comment #1 from Richard Smith <richard-gccbugzilla at metafoo dot co.uk> --- Probable duplicate of bug#59930 (friend class templates injected into wrong namespace).