[Bug target/85915] -mfunction-return=thunk causes multiple definition of `__x86_return_thunk'

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85915

--- Comment #6 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Arfrever Frehtes Taifersar Arahesis from comment #5)
> Do you know numbers of relevant revisions which I could locally backport to
> GCC 7.3.0?

You should use GCC 7 branch.