https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89864
--- Comment #88 from Iain Sandoe <iains at gcc dot gnu.org> --- unless some problem shows up, this is what I will commit to 8.3 (limited checking only). https://github.com/iains/gcc-8-branch/commit/235ccac0aeb941c860c1e469a645ab9a90c9eca2
