[Bug libstdc++/101867] avr libc build error for libstdc++

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101867

--- Comment #12 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to cqwrteur from comment #8)
> But it is not documented.

It is: https://gcc.gnu.org/install/configure.html#avr

> 
> in the /src/c++11/system_error.cc
> 
> #ifdef __AVR__
>       return std::error_condition(ev, std::system_category());
> #else
>       switch (ev)
>       {
> 
> #endif
> 
> i feel this switch is pointless.

Why do you feel that?

Have you read [syserr.errcat.objects] p4?

How do you think your suggestion for __AVR__ conforms to that requirement?


> https://github.com/vancegroup-mirrors/avr-libc/blob/master/avr-libc/include/
> errno.h
> 
> If you look at the errno.h here, it is pretty bad.

I don't know what you're saying here.

> I think this switch should just be removed.

How would you implement the requirement then?