Re: ppc64el: IEEE 128-bit long double instead of IBM 128-bit long double

[Matthias Klose <doko@debian.org>]

On 8/5/25 13:29, Matthias Klose wrote:
> For the opening of trixie, both GCC and LLVM are prepared to change the 
> long double ABI from  IBM 128-bit long double to  IEEE 128-bit long 
> double.  That is a change that other distros did long ago.
>
> For reference, please see
> https://developers.redhat.com/articles/2023/05/16/benefits-fedora-38- 
> long-double-transition-ppc64le#
>
> I'm proposing to do this "transition" inline, doing just no-change 
> binNMUs in most cases.  long double in the ABI is not that common. 
> Afaiu, Fedora and OpenSUSE did it this way, and also Ubuntu is doing it 
> currently this way.  Ubuntu also has a (maybe incomplete) list of 
> packages, which require binNMUs.

with GCC 15 now as the default, we are starting with the sourceful 
no-change uploads, as suggested by Graham.  Progress is tracked in

https://wiki.debian.org/ToolChain/IEEELongDouble