pylibacl fails to build with Python 3.11.0a2.

acl.c: In function ‘PyInit_posix1e’:
acl.c:1803:24: error: lvalue required as left operand of assignment
 1803 |     Py_TYPE(&ACL_Type) = &PyType_Type;
      |                        ^
acl.c:1808:26: error: lvalue required as left operand of assignment
 1808 |     Py_TYPE(&Entry_Type) = &PyType_Type;
      |                          ^
acl.c:1812:28: error: lvalue required as left operand of assignment
 1812 |     Py_TYPE(&Permset_Type) = &PyType_Type;
      |                            ^

Since Py_TYPE() is changed to a inline static function, Py_TYPE(obj) = new_type must be replaced with Py_SET_TYPE(obj, new_type): see the Py_SET_TYPE() function (available since Python 3.9). For backward compatibility, this macro can be used:

#if PY_VERSION_HEX < 0x030900A4 && !defined(Py_SET_TYPE)
static inline void _Py_SET_TYPE(PyObject *ob, PyTypeObject *type)
{ ob->ob_type = type; }
#define Py_SET_TYPE(ob, type) _Py_SET_TYPE((PyObject*)(ob), type)
#endif

(Contributed by Victor Stinner in bpo-39573.)

https://bugs.python.org/issue39573
https://docs.python.org/3.11/whatsnew/3.11.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.11/fedora-rawhide-x86_64/02940467-pylibacl/

For all our attempts to build pylibacl with Python 3.11, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.11/package/pylibacl/

Testing and mass rebuild of packages is happening in copr. You can follow these instructions to test locally in mock if your package builds with Python 3.11:
https://copr.fedorainfracloud.org/coprs/g/python/python3.11/

Let us know here if you have any questions.

Python 3.11 is planned to be included in Fedora 37. To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.11.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires), so if this package is required a lot, it's important for us to get it fixed soon.
We'd appreciate help from the people who know this package best, but if you don't want to work on this now, let us know so we can try to work around it on our side.