bpo-36236: Handle removed cwd at Python init (GH-12450)

At Python initialization, the current directory is no longer
prepended to sys.path if it has been removed.
diff --git a/Include/pylifecycle.h b/Include/pylifecycle.h
index 05f17dc..5d9f049 100644
--- a/Include/pylifecycle.h
+++ b/Include/pylifecycle.h
@@ -139,7 +139,9 @@
 PyAPI_FUNC(wchar_t *) Py_GetPath(void);
 #ifdef Py_BUILD_CORE
 PyAPI_FUNC(_PyInitError) _PyPathConfig_Init(const _PyCoreConfig *core_config);
-PyAPI_FUNC(PyObject*) _PyPathConfig_ComputeArgv0(int argc, wchar_t **argv);
+PyAPI_FUNC(int) _PyPathConfig_ComputeArgv0(
+    int argc, wchar_t **argv,
+    PyObject **argv0_p);
 PyAPI_FUNC(int) _Py_FindEnvConfigValue(
     FILE *env_file,
     const wchar_t *key,