Fix GCC warning in _asynciomodule.c (#4928)

diff --git a/Modules/_asynciomodule.c b/Modules/_asynciomodule.c
index 33ae067de4b7364bf4f63ac771dc7c0f7904dbba..f52297d33f2639634ea2f9197d0905c06924fb30 100644 (file)
--- a/Modules/_asynciomodule.c
+++ b/Modules/_asynciomodule.c
@@ -3023,7 +3023,7 @@ _asyncio__leave_task_impl(PyObject *module, PyObject *loop, PyObject *task)
 
 
 static void
-module_free_freelists()
+module_free_freelists(void)
 {
     PyObject *next;
     PyObject *current;