@@ -388,41 +388,44 @@ add_gufuncs(PyObject *dictionary) {
388388return 0 ;
389389}
390390
391- static struct PyModuleDef moduledef = {
392- PyModuleDef_HEAD_INIT,
393- " _multiarray_umath"
394- NULL ,
395- -1 ,
396- NULL ,
397- NULL ,
398- NULL ,
399- NULL ,
400- NULL
401- };
402-
403- /* Initialization function for the module*/
404- PyMODINIT_FUNCPyInit__pocketfft_umath (void )
391+ static int
392+ _pocketfft_umath_exec (PyObject *m)
405393{
406- PyObject *m =PyModule_Create (&moduledef);
407- if (m ==NULL ) {
408- return NULL ;
409- }
410-
411394/* Import the array and ufunc objects*/
412- import_array ( );
413- import_ufunc ( );
395+ import_array1 (- 1 );
396+ import_umath1 (- 1 );
414397
415398 PyObject *d =PyModule_GetDict (m);
416399if (add_gufuncs (d) <0 ) {
417400Py_DECREF (d);
418401Py_DECREF (m);
419- return NULL ;
402+ return - 1 ;
420403 }
421404
422- #if Py_GIL_DISABLED
423- // signal this module supports running with the GIL disabled
424- PyUnstable_Module_SetGIL (m, Py_MOD_GIL_NOT_USED);
405+ return 0 ;
406+ }
407+
408+ static struct PyModuleDef_Slot _pocketfft_umath_slots[] = {
409+ {Py_mod_exec, (void *)_pocketfft_umath_exec},
410+ #if PY_VERSION_HEX >= 0x030c00f0// Python 3.12+
411+ {Py_mod_multiple_interpreters, Py_MOD_MULTIPLE_INTERPRETERS_NOT_SUPPORTED},
425412#endif
413+ #if PY_VERSION_HEX >= 0x030d00f0// Python 3.13+
414+ // signal that this module supports running without an active GIL
415+ {Py_mod_gil, Py_MOD_GIL_NOT_USED},
416+ #endif
417+ {0 ,NULL },
418+ };
419+
420+ static struct PyModuleDef moduledef = {
421+ PyModuleDef_HEAD_INIT,/* m_base*/
422+ " _pocketfft_umath" /* m_name*/
423+ NULL ,/* m_doc*/
424+ 0 ,/* m_size*/
425+ NULL ,/* m_methods*/
426+ _pocketfft_umath_slots,/* m_slots*/
427+ };
426428
427- return m;
429+ PyMODINIT_FUNCPyInit__pocketfft_umath (void ) {
430+ return PyModuleDef_Init (&moduledef);
428431}