Bug#1128257: package doesn't build with the armhf baseline

[Matthias Klose]

On 2/17/26 13:23, Drew Parsons wrote:
> Source: xsimd
> Followup-For: Bug #1128257
> X-Debbugs-Cc: debian-arm at lists.debian.org, Matthias Klose <doko at debian.org>
> User: debian-arm at lists.debian.org
> Usertags: armhf
> Control: reopen -1
> 
> Matthias Klose wrote:
>> GCC should not ICE, however the real issue seems to be the build with
>> -mfloat-abi=hard -mfpu=vfpv3, which doesn't match our baseline for armhf.
> 
> Mathias, these flags were added to the xsimd build to avoid accessing
> the NEON code path on armhf, which is still an issue
> 
> cf. https://github.com/xtensor-stack/xsimd/issues/889
>      https://github.com/llvm/llvm-project/issues/30190
>      
> 
> If -mfpu=vfpv3 is not constructive to use now, can you advise on the
> right flag for switching off neon?  Is it
>    -cpu neon=off

according to the GCC man page, this should be then -march=armv7-a+fp, or 
use the alias -march=armv7-a+vfpv3-d16. No other fpu or float-abi flags.

Matthias