https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81973
--- Comment #1 from Lorenzo Pistone <blaffablaffa at gmail dot com> --- It is possible to obtain the desired behavior defining in a compilation unit a dummy s::f with weak attribute (and so generate the vtable), then in a separate compilation the actual alias of s::f to s_f_alias, but this it is an impractical workaround.
