Jonathan Wakely via Libstdc++ <libstdc++@gcc.gnu.org> writes:

>>and was resolved for the newlib. The fix was not applied for the avr-libc
>>targets although the rationale behind the solution
>>seems to be applicable there as well. I would like to ask what do you think
>>about extending the scope of the solution to work
>>with avr-libc based builds as well?
>
> Yes, I think it makes sense.

I've been working on making libstdc++ work with picolibc, which shares a
bunch of stdio code with avr-libc. I haven't tried my patches with
avr-libc, but I wonder if that would be a good thing to do? With those
patches, I'm able to use libstdc++'s iostream.

-- 
-keith