https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106668
--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Fixed on trunk by commit e8ed26c2ac38ab1f6ed5a627d9089a9243e06a0c Author: Jason Merrill <ja...@redhat.com> Date: Tue Jun 7 15:52:30 2022 -0400 c++: non-templated friends [PR105852] The previous patch for 105852 avoids copying DECL_TEMPLATE_INFO from a non-templated friend, but it really shouldn't have it in the first place. PR c++/105852