Add PyAPI_FUNC()

Include/object.h

@@ -239,7 +239,7 @@ PyAPI_FUNC(int) Py_Is(PyObject *x, PyObject *y);
 #define Py_Is(x, y) ((x) == (y))
 
 #if defined(Py_GIL_DISABLED) && !defined(Py_LIMITED_API)
-inline uintptr_t
+inline PyAPI_FUNC(uintptr_t)
 _Py_ThreadId(void)
 {
     uintptr_t tid;
@@ -285,7 +285,7 @@ _Py_ThreadId(void)
   return tid;
 }
 
-inline Py_ALWAYS_INLINE int
+inline Py_ALWAYS_INLINE PyAPI_FUNC(int)
 _Py_IsOwnedByCurrentThread(PyObject *ob)
 {
     return ob->ob_tid == _Py_ThreadId();
@@ -333,7 +333,7 @@ static inline Py_ssize_t Py_SIZE(PyObject *ob) {
 #endif
 
 #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 < 0x030d0000
-inline Py_ALWAYS_INLINE int _Py_IsImmortal(PyObject *op)
+inline Py_ALWAYS_INLINE PyAPI_FUNC(int) _Py_IsImmortal(PyObject *op)
 {
 #if defined(Py_GIL_DISABLED)
     return (op->ob_ref_local == _Py_IMMORTAL_REFCNT_LOCAL);
@@ -360,7 +360,7 @@ static inline int Py_IS_TYPE(PyObject *ob, PyTypeObject *type) {
 #if defined(Py_LIMITED_API) && Py_LIMITED_API+0 >= 0x030d0000
 PyAPI_DATA(void) Py_SET_REFCNT(PyObject *ob, Py_ssize_t refcnt);
 #else
-inline void Py_SET_REFCNT(PyObject *ob, Py_ssize_t refcnt) {
+inline PyAPI_FUNC(void) Py_SET_REFCNT(PyObject *ob, Py_ssize_t refcnt) {
     // This immortal check is for code that is unaware of immortal objects.
     // The runtime tracks these objects and we should avoid as much
     // as possible having extensions inadvertently change the refcnt