From 78f1bac7f23b6d5a612ce569f35f3e0f3b36c9ab Mon Sep 17 00:00:00 2001
From: Victor Stinner <vstinner@python.org>
Date: Mon, 24 Mar 2025 14:56:45 +0100
Subject: [PATCH] gh-111178: Fix function signature for test_threading
 (#131663)

---
 Modules/_threadmodule.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Modules/_threadmodule.c b/Modules/_threadmodule.c
index bcac2b48f184..f4c98ca39f6e 100644
--- a/Modules/_threadmodule.c
+++ b/Modules/_threadmodule.c
@@ -384,8 +384,9 @@ exit:
 }
 
 static int
-force_done(ThreadHandle *handle)
+force_done(void *arg)
 {
+    ThreadHandle *handle = (ThreadHandle *)arg;
     assert(get_thread_handle_state(handle) == THREAD_HANDLE_STARTING);
     _PyEvent_Notify(&handle->thread_is_exiting);
     set_thread_handle_state(handle, THREAD_HANDLE_DONE);
@@ -458,7 +459,7 @@ ThreadHandle_start(ThreadHandle *self, PyObject *func, PyObject *args,
     return 0;
 
 start_failed:
-    _PyOnceFlag_CallOnce(&self->once, (_Py_once_fn_t *)force_done, self);
+    _PyOnceFlag_CallOnce(&self->once, force_done, self);
     return -1;
 }
 
-- 
2.47.3