[gdal-dev] Slightly-off failing tests on i686

[Even Rouault]

Hi,

we do have a CI configuration for i386 using clang in debug mode. Maybe 
your use of gcc in -O2 yields to slightly different results in some cases.

BTW, I see in your log a crash on test_tiff_write_66 that could be 
avoided by setting the SKIP_MEM_INTENSIVE_TEST environment variable 
before running the test suite (which our CI does)

Even

Le 29/10/2025 à 13:37, yosh via gdal-dev a écrit :
> Heya,
>
> I'm currently in the process of updating libgdal for void linux. In the
> process, I actually added the test suite to the package, and it seems to be
> failing on i686/32bit:
>
> https://github.com/void-linux/void-packages/actions/runs/18897850572/job/53938975118?pr=57703#step:7:7606
>
> in case github actions culls this sooner than expected:
> https://0x0.st/K_pP.txt
>
> It seems to be ever so slightly off the expected results for numerical
> stuff. is this known/expected behavior and/or a supported configuration? Mainly
> wondering if it'd be better to skip the tests for i686 or not.
>
> Best,
> yosh
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