Re: c++20: require gcc12?

[Martin Husemann <martin%duskware.de@localhost>]

On Tue, Feb 11, 2025 at 09:23:15AM +0100, Thomas Klausner wrote:
> checking whether c++ supports C++20 features with -std=c++20... no
> checking whether c++ supports C++20 features with +std=c++20... no
> checking whether c++ supports C++20 features with -h std=c++20... no
> configure: error: *** A compiler with support for C++20 language features is required.
> 
> So I think we should bump the requirement to gcc 12.

This is very strange and probably points at a serious bug in the gcc pkg.
Any chance to investigate details of the configure failure?

AFAICT there is no c++20 specific test code to compile and the c++
frontend does understand "-std=c++20".

Martin