[Bug target/85915] ABI incompatibility (multiple definition of `__x86_return_thunk') for static libraries, between GCC 7.3.0 and GCC >=7.4.0, caused by -mfunction-return=thunk

[luke-jr+gccbugs at utopios dot org]

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

--- Comment #13 from Luke Dashjr <luke-jr+gccbugs at utopios dot org> ---
I run Gentoo, so it compiled it for me (2.27)