Automatically repair to the most compatible/oldest platform tag

[sevagh]

Hello all,

I'm wondering if I'm thinking about this correctly; wouldn't I want my wheels to have the lowest manylinux, such that more users can install it?

I'm building wheels using the manylinux_2_28 environment. Some of the C++ code uses newer symbols than others and need a more constrained/newer manylinux platform.

As an example, I build both foo.whl and bar.whl in manylinux_2_28;

• foo.whl can be repaired to manylinux_2_24_x86_64
• bar.whl can be repaired to manylinux_2_17_x86_64

auditwheel show will give you this information, by printing it with a bunch of text.

Foo:

$ auditwheel show foo.whl

foo.whl
is consistent with the following platform tag:
"manylinux_2_24_x86_64".

The wheel references external versioned symbols in these
...

Bar:

$ auditwheel show bar.whl

bar.whl
is consistent with the following platform tag:
"manylinux_2_17_x86_64".

The wheel references external versioned symbols in these

Next, I want to run auditwheel repair --plat=${most-compatible-platform} *.whl

1. I can either try to parse the output of auditwheel show (using grep etc.) - little bit tricky, especially when using cibuildwheel

CIBW_REPAIR_COMMAND_LINUX=auditwheel repair --plat=$(auditwheel show {wheel} | grep | awk | whatever) {wheel}

2. Maybe auditwheel show can have a shorter output flag, e.g. auditwheel show --only-plat, so it can be more easily used:

$ auditwheel show --only-plat bar.whl
manylinux_2_17_x86_64

More usable in a compound bash command:

CIBW_REPAIR_COMMAND_LINUX=auditwheel repair --plat=$(auditwheel show --only-plat {wheel}) {wheel}

3. Or, perhaps an auditwheel repair --auto-plat to combine the logic

Perhaps I'm missing some knowledge as well:

• Is it even desirable to have this behavior?
• Is there a downside I'm not considering?
• Can this already be achieved with auditwheel by some feature or flag I missed?

Thanks in advance.

[jvolkman]

I agree and have the same question. Ideally auditwheel would have a --plat auto mode which would just select the best possible compatibility tag. Then I could adjust the compatibility of my wheels by adjusting the target sysroot - which I'd need to do anyway - without messing with auditwheel parameters.