[Bug libstdc++/97362] [8/9/10/11 Regression] `__deref` in in debug mode clashes with internal macro in Windows system header

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97362

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to frankhb1989 from comment #0)
> Case:
> 
> #include <windows.h>
> #include <functional>

N.B. this has nothing to do with <functional>. The __deref entity is in
<debug/functions.h> which gets included by <algorithm> and all the containers
(and a few other places). <functional> just happens to include <array> which
uses the debug mode header.