[Bug c++/88521] gcc 9.0 from r266355 miscompile x265 for mingw-w64 target

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88521

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Since the patch changes the ABI can it be you have library dependences with the
old ABI around?