python3Packages.cx-logging: unbreak on darwin

{

  stdenv,

  lib,

  buildPythonPackage,

  fetchFromGitHub,

  postPatch = ''

    substituteInPlace pyproject.toml \

      --replace-fail "setuptools>=70.1,<75" "setuptools"

  ''

  # The flag -soname isn't recognized by the linker on darwin. Only -install_name is valid.

  + lib.optionalString stdenv.hostPlatform.isDarwin ''

    substituteInPlace setup.py \

      --replace-fail "-soname" "-install_name"

  '';

  build-system = [ setuptools ];