libatomic.a dependency causes issues when building on Arch Linux

[csd4ni3l]

Nuitka (and probably other py-to-exe software) tries to use libatomic.a instead of libatomic.so, which crashes gcc or other compilers.
In Arch Linux, libatomic.a does not exist anymore.
replacing compiler flags from -l:libatomic.a to -latomic fixes the issue, the dynamic version of libatomic is always available.

Example error:

gcc -o /home/csd4ni3l/Documents/Python3/shatterstack/test.dist/test -s -z noexecstack -export-dynamic -Wl,-R,'$ORIGIN' -Wl,--disable-new-dtags @"./@link_input.txt" -L/home/csd4ni3l/.local/share/uv/python/cpython-3.11.11-linux-x86_64-gnu/lib -ldl -lm -lpython3.11 -ldl -lpthread -lutil -lrt -lm -l:libatomic.a -l:libatomic.a
/usr/bin/ld: cannot find -l:libatomic.a: No such file or directory
/usr/bin/ld: cannot find -l:libatomic.a: No such file or directory
collect2: error: ld returned 1 exit status

[csd4ni3l]

Nuitka issue: Nuitka/Nuitka#3474

[geofft]

I think this is leaking out from our internal use of -l:libatomic.a (see cpython-unix/extension-modules.yml), the original purpose of which was to avoid needing libatomic on end user systems, but unfortunately the Python extension build process leaks flags from how Python itself was built, which is probably why you're getting that on your build command line.

We have since started also using libatomic.so on some platforms; see #410. It may be the case that we can actually assume there's a platform libatomic.so everywhere.

Alternatively, we should be able to stop leaking this command line flag.

[csd4ni3l]

Any updates?

[zanieb]

While we could add filtering for this to sysconfig, I don't think it's necessarily reasonable for us to remove every flag we use.

It seems like Nuitka should provide a way to filter what it pulls from sysconfig?