python-wsaccel fails to build with Python 3.13.0a1.

wsaccel/utf8validator.c: In function ‘__Pyx_PyDict_GetItemStr’:
wsaccel/utf8validator.c:860:55: error: implicit declaration of function ‘_PyDict_GetItem_KnownHash’ [-Werror=implicit-function-declaration]
  860 | #define __Pyx_PyDict_GetItemStrWithError(dict, name)  _PyDict_GetItem_KnownHash(dict, name, ((PyASCIIObject *) name)->hash)

wsaccel/utf8validator.c: In function ‘__pyx_array_new’:
wsaccel/utf8validator.c:848:65: error: implicit declaration of function ‘_PyDict_NewPresized’ [-Werror=implicit-function-declaration]
  848 | #define __Pyx_PyDict_NewPresized(n)  ((n <= 8) ? PyDict_New() : _PyDict_NewPresized(n))
      |                                                                 ^~~~~~~~~~~~~~~~~~~
wsaccel/utf8validator.c: In function ‘__pyx_memoryview_is_slice’:
wsaccel/utf8validator.c:773:39: error: implicit declaration of function ‘_PyThreadState_UncheckedGet’; did you mean ‘PyThreadState_GetUnchecked’? [-Werror=implicit-function-declaration]
  773 |   #define __Pyx_PyThreadState_Current _PyThreadState_UncheckedGet()
      |                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~
wsaccel/utf8validator.c: In function ‘__Pyx_PyObject_FastCallDict’:
wsaccel/utf8validator.c:23188:24: error: implicit declaration of function ‘_PyVectorcall_Function’; did you mean ‘PyVectorcall_Function’? [-Werror=implicit-function-declaration]
23188 |     vectorcallfunc f = _PyVectorcall_Function(func);
      |                        ^~~~~~~~~~~~~~~~~~~~~~
      |                        PyVectorcall_Function
wsaccel/utf8validator.c: In function ‘__Pyx_PyInt_From_int’:
wsaccel/utf8validator.c:27940:16: error: implicit declaration of function ‘_PyLong_FromByteArray’ [-Werror=implicit-function-declaration]
27940 |         return _PyLong_FromByteArray(bytes, sizeof(int),
      |                ^~~~~~~~~~~~~~~~~~~~~
wsaccel/utf8validator.c: In function ‘__Pyx_PyInt_As_int’:
wsaccel/utf8validator.c:28141:23: error: implicit declaration of function ‘_PyLong_AsByteArray’ [-Werror=implicit-function-declaration]
28141 |                 ret = _PyLong_AsByteArray((PyLongObject *)v,
      |                       ^~~~~~~~~~~~~~~~~~~


According to https://docs.python.org/3.13/whatsnew/3.13.html a new public function has been added:

- Add PyThreadState_GetUnchecked() function: similar to PyThreadState_Get(), but don’t kill the process with a fatal error if it is NULL.
The caller is responsible to check if the result is NULL.
Previously, the function was private and known as _PyThreadState_UncheckedGet().
(Contributed by Victor Stinner in gh-108867.)
- removed _PyVectorcall_Function(): use PyVectorcall_Function()
- a lot of private functions have been removed from Python 3.13. The detailed list of the removed private C API functions can be found here: https://github.com/python/cpython/issues/106320

https://docs.python.org/3.13/whatsnew/3.13.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.13/fedora-rawhide-x86_64/06578860-python-wsaccel/

For all our attempts to build python-wsaccel with Python 3.13, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.13/package/python-wsaccel/

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 3.13:
https://copr.fedorainfracloud.org/coprs/g/python/python3.13/

Let us know here if you have any questions.

Python 3.13 is planned to be included in Fedora 41.
To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.13.
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.