[Bug lto/110710] LTO linker on Windows creates an invalid Makefile

[sjames at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110710

--- Comment #22 from Sam James <sjames at gcc dot gnu.org> ---
(In reply to Sam James from comment #21)
> (In reply to Peter Damianov from comment #20)
> > I'm not really sure how to propose a backport or who would review it.
> > I'm calling this fixed for now but someone else is welcome to propose one.
> > If I could push the commits I would.
> 
> You just ask in reply to the original patch if it's OK for branches.

And richi already said it should be fine. It's just a question of it is worth
bothering for 14+13 at this point.