[Debichem-devel] Bug#1118661: isospec: FTBFS on ppc64el and riscv64

[John Paul Adrian Glaubitz]

Hi Bo,

On Fri, 2025-10-24 at 00:17 +0800, Bo YU wrote:
> isospec failed to build ppc64el and riscv64 due to -march=native:
> https://buildd.debian.org/status/fetch.php?pkg=isospec&arch=ppc64el&ver=2.2.3%2Bcleaned1-1&stamp=1761070922&raw=0
> https://buildd.debian.org/status/fetch.php?pkg=isospec&arch=riscv64&ver=2.2.3%2Bcleaned1-1&stamp=1761101061&raw=0
> 
> I proposal one patch below and test it on riscv64:
> 
> --- a/setup.py
> +++ b/setup.py
> @@ -36,10 +36,7 @@
>          return ["/O2", "/std:c++17"]
>      if use_asan:
>          return '-O0 -g -DISOSPEC_DEBUG -std=c++17 -fsanitize=address'.split()
> -    ret = ['-O3', '-std=c++17']
> -    if native_ok:
> -        ret.extend(['-mtune=native', '-march=native'])
> -    return ret
> +    return ['-O3', '-std=c++17']
> 
>  cmodule = Extension('IsoSpecCppPy',
>                  sources = ['IsoSpec++/python-build.cpp'],
> 

Using -march=native is also a potential baseline violation and therefore the
flag should be removed either way.

Adrian

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