4.1.4_release_blocker granted: [Issue 127137] configure does not recognize Xcode 8

[bugzilla]

Ariel Constenla-Haile <arie...@apache.org> has granted  4.1.4_release_blocker:
Issue 127137: configure does not recognize Xcode 8
https://bz.apache.org/ooo/show_bug.cgi?id=127137