[Bug c++/86177] Wnull-dereference warning for object file compile missing

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86177

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
That's how C++ works. Each translation unit is compiled separately. It's your
job to prevent such errors.