[Bug preprocessor/64220] gcc preprocessor defines outside of the reserved namespace: unix linux AVR

[cameron at tacklind dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64220

--- Comment #5 from Cameron Tacklind <cameron at tacklind dot com> ---
Pardon my brevity. Yes, I'd seen that.

I was trying to comment on this list seemingly missing a reference to that
particular difference. Or that if it is listed, it is difficult to find.

https://gcc.gnu.org/onlinedocs/gcc/C-Extensions.html

By my main issue persists of extra defines being set outside of the reserved
namespace. If this is something that you do not want to change, I am fine with
that. If so, please close this indicating that you want this behavior.