[Bug lto/78087] gcc 6.2.0 fails to link temacs from emacs-25.1 with -O0 -flto

[howarth.at.gcc at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78087

--- Comment #2 from Jack Howarth <howarth.at.gcc at gmail dot com> ---
Note that these tests on linux used binutils-2.27.