https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63997
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
The testcase uses -shared at link time which is supposed to build a shared
object and generate an external (unresolved) reference to _master. Why is
that (/* { dg-extra-ld-options { -shared } } */) not working on darwin?
