https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93320
Przemyslaw Wirkus <przemyslaw.wirkus at arm dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |przemyslaw.wirkus at arm dot com --- Comment #6 from Przemyslaw Wirkus <przemyslaw.wirkus at arm dot com> --- Hi, I was able to reduce your testcase to this code: template <typename> class a; class { void b(a... c); } /Przemyslaw