[Bug c++/93585] Linker resolves variable with extern variable of same name but different type

[normvcr at telus dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93585

--- Comment #3 from Norman Goldstein <normvcr at telus dot net> ---
The 2nd reference
https://en.cppreference.com/w/cpp/language/definition
differentiates between a bare "extern" statement, and an initializing extern
statement.  The former is a declaration, but not a definition.  So, the ODR is
not violated.  The linker would only need to verify that the types are the
same.