Hi Dandan, On Tue, 2025-12-16 at 17:31 +0800, zhangdandan wrote: > I recently discovered that python-hdf5plugin is built with the > -march=native GCC option. > Some of the logs are follows, > ``` > INFO:root:x86_64-linux-gnu-gcc -g -O2 > -Werror=implicit-function-declaration > -ffile-prefix-map=/build/reproducible-path/python-hdf5plugin-5.1.0=. > -fstack-protector-strong -fstack-clash-protection -Wformat > -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 > -fPIC -I/usr/include/python3.13 -c /tmp/tmpdka9vugw/source.c -o > /tmp/tmpdka9vugw/tmp/tmpdka9vugw/source.o -march=native > ``` > The details can be found at > https://buildd.debian.org/status/fetch.php?pkg=python-hdf5plugin&arch=all&ver=5.1.0-1&stamp=1745501392&raw=0. > > I checked that many packages disable -march=native.
While your analysis is partially correct, you're missing the important information that the C code compiled in this package is not being shipped in the actual package [1]: /usr/lib/python3/dist-packages/hdf5plugin-5.1.0.egg-info/PKG-INFO /usr/lib/python3/dist-packages/hdf5plugin-5.1.0.egg-info/dependency_links.txt /usr/lib/python3/dist-packages/hdf5plugin-5.1.0.egg-info/requires.txt /usr/lib/python3/dist-packages/hdf5plugin-5.1.0.egg-info/top_level.txt /usr/lib/python3/dist-packages/hdf5plugin/__init__.py /usr/lib/python3/dist-packages/hdf5plugin/_config.py /usr/lib/python3/dist-packages/hdf5plugin/_filters.py /usr/lib/python3/dist-packages/hdf5plugin/_utils.py /usr/lib/python3/dist-packages/hdf5plugin/_version.py /usr/lib/python3/dist-packages/hdf5plugin/test.py /usr/share/doc/python3-hdf5plugin/changelog.Debian.gz /usr/share/doc/python3-hdf5plugin/changelog.gz /usr/share/doc/python3-hdf5plugin/copyright So, I think it's safe to ignore the problem. Adrian > [1] https://packages.debian.org/sid/all/python3-hdf5plugin/filelist -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer `. `' Physicist `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
