[Bug bootstrap/89864] [9 regression] gcc fails to build/bootstrap with XCode 10.2

[schnetter at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89864

--- Comment #21 from Erik Schnetter <schnetter at gmail dot com> ---
https://gcc.gnu.org/ml/gcc-patches/2019-04/msg00162.html