https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102765
--- Comment #6 from Iain Buclaw <ibuclaw at gdcproject dot org> --- r13-2002 (and r12-8673) is a start that sows the seeds to make the codegen option -fno-weak-templates the default. Should just be a case of extending the forced emission to all instantiations too.