[Bug libffi/64572] r219477 breaks bootstrap on x86_64 darwin

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64572

--- Comment #16 from H.J. Lu <hjl.tools at gmail dot com> ---
This may be a dup of PR 64607 or PR 64581.