https://issues.dlang.org/show_bug.cgi?id=17596
--- Comment #19 from Cy Schubert <c...@freebsd.org> --- That probably makes sense. I can restrict FreeBSD 10 and 11 to an old release of dmd. At least it addresses the issue going forward. I'll rework the port the next time I visit it. I'm hoping to have this resolved by the time FreeBSD 12 is released. --