-Wold-style-casts and system headers

[Jonathan Wakely]

On 18 June 2013 17:14, Anthony Foiani wrote:
>
>
> I'm aware that I can disable that warning for the single file, or even
> for a single region in the file using pragmas, but I would like to
> understand why g++ isn't applying the "system header" rule to that
> macro.

It's because the expansion of the macro is in your code, not in a system header.

There are some open bug reports on similar subjects
e.g.http://gcc.gnu.org/bugzilla/show_bug.cgi?id=7263#c8