[Bug lto/83954] [6/7/8 Regression] LTO: Bogus -Wlto-type-mismatch warning for array of pointer to incomplete type

[dobonachea at lbl dot gov]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83954

--- Comment #2 from Dan Bonachea <dobonachea at lbl dot gov> ---
Thanks Mr. Liška!

If possible it would be useful for our project to know whether this defect is
solely a spurious warning, or whether it could affect analysis in a way that
might result in incorrect code generation on affected compiler versions (as
suggested by the warning text).

Assuming it's the latter, can anyone suggest any non-intrusive workarounds?
(aside from the obvious "big hammers" of -fno-lto or -fno-strict-aliasing)