[Bug c++/71402] -Wunused-variable warnings ignore initialization side effects

[lopezibanez at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71402

--- Comment #11 from Manuel López-Ibáñez <lopezibanez at gmail dot com> ---
5.3 has the bug I mentioned above. It makes the pragmas  believe that, for
this warning, the location is at the end of the file, which is after the
pop. Perhaps you can trick gcc by placing another pragma ignored at the end
of the file. But that will silence all warnings that suffer from this bug.