[Bug target/78077] gcc 6.2.0 fails to link temacs from emacs-25.1 using the Xcode 8 linker

[howarth.at.gcc at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78077

--- Comment #2 from Jack Howarth <howarth.at.gcc at gmail dot com> ---
This issue is also observed on x86_64-apple-darwin14 using gcc 6.2.0 and the
linker from Xcode 7.2.1.