Absorb macos_libfile from pypa/wheel

MANIFEST.in

@@ -7,6 +7,7 @@ recursive-include pkg_resources *.py *.txt
 recursive-include pkg_resources/tests/data *
 recursive-include tools *
 recursive-include newsfragments *
+graft setuptools/tests/macosx_libfile/
 include *.py
 include *.rst
 include MANIFEST.in

docs/conf.py

@@ -89,6 +89,10 @@
                 pattern=r'pypa/(?P<commit_repo>[\-\.\w]+)@(?P<commit_number>[\da-f]+)',
                 url='{GH}/pypa/{commit_repo}/commit/{commit_number}',
             ),
+            dict(
+                pattern=r'Discourse thread (?P<thread_number>\d+)',
+                url='https://discuss.python.org/t/{thread_number}',
+            ),
         ],
     ),
 }

newsfragments/4965.feature.rst

@@ -0,0 +1,8 @@
+Incorporated ``wheel.macosx_libfile`` as a private module in the ``setuptools`` project.
+The discussion leading to this approach can be found in #4935 and in the Discourse thread 87509.
+The original code was provided to pypa/wheel#314 by Grzegorz Bokota (:user:`Czaki`),
+and further improved by community members in the context of the :pypi:`wheel` project
+(see commit history in https://github.com/pypa/wheel/commits/0.46.1/src/wheel/macosx_libfile.py).
+Third party software interested in using this module are encouraged to interact
+in the Discourse thread and propose alternatives (e.g. extracting this module
+in its own separated project).

pyproject.toml

@@ -208,8 +208,10 @@ exclude = [
 namespaces = true
 
 [tool.setuptools.exclude-package-data]
-# Remove ruff.toml when installing vendored packages (#4652)
-"*" = ["ruff.toml"]
+"*" = [
+	"ruff.toml", # Remove ruff.toml when installing vendored packages (#4652)
+	"*.dylib", # Avoid distributing obscure binary test files for macos_libfile in wheel (#4965)
+]
 
 [tool.distutils.sdist]
 formats = "zip"