https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107296
Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mpolacek at gcc dot gnu.org --- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> --- (In reply to Martin Liška from comment #2) > Likely started with r10-3735-gcb57504a55015891. Yes, error: need ‘typename’ before ‘Mixin<B>::Nested::Mixin2’ because ‘Mixin<B>::Nested’ is a dependent scope started with r10-3735-gcb57504a55015891, error: non-template ‘Mixin2’ used as template started with r12-4584-g1c690164668bda.