Re: expected baseline changes for forky => proposal no more FPU and 80bits float/double on i386

Stephen Kitt <[email protected]>
Newsgroups gmane.linux.debian.devel.general
Message-ID <[email protected]>
Hi,

On Sat, 15 Aug 2026 13:20:20 +0300, Adrian Bunk <[email protected]> wrote:
> On Fri, Aug 14, 2026 at 09:23:58PM +0900, Simon Richter wrote:
> > The floating point results change, though, so the behaviour is different
> > from what the software was tested with, especially the rounding behaviour
> > is a lot more aggressive.
> >...  
> 
> you can compile software relying on the old behaviour with -mfpmath=387.

The typical use-case here though is that you have an existing i386 binary,
which you can’t recompile, running with distribution-provided i386 libraries
(or a mixture of i386 libraries provided alongside the binary and
distribution-provided libraries), and it’s the behaviour of the libraries
that may have changed.

Regards,

Stephen
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