bpo-32240: Add the const qualifier to declarations of PyObject* array arguments. (#4746)

Modules/_struct.c

@@ -1733,7 +1733,7 @@ Struct_iter_unpack(PyStructObject *self, PyObject *buffer)
  *
  */
 static int
-s_pack_internal(PyStructObject *soself, PyObject **args, int offset, char* buf)
+s_pack_internal(PyStructObject *soself, PyObject *const *args, int offset, char* buf)
 {
     formatcode *code;
     /* XXX(nnorwitz): why does i need to be a local?  can we use
@@ -1820,7 +1820,7 @@ to the format string S.format.  See help(struct) for more on format\n\
 strings.");
 
 static PyObject *
-s_pack(PyObject *self, PyObject **args, Py_ssize_t nargs)
+s_pack(PyObject *self, PyObject *const *args, Py_ssize_t nargs)
 {
     PyStructObject *soself;
     PyObject *result;
@@ -1859,7 +1859,7 @@ offset.  Note that the offset is a required argument.  See\n\
 help(struct) for more on format strings.");
 
 static PyObject *
-s_pack_into(PyObject *self, PyObject **args, Py_ssize_t nargs)
+s_pack_into(PyObject *self, PyObject *const *args, Py_ssize_t nargs)
 {
     PyStructObject *soself;
     Py_buffer buffer;
@@ -2123,7 +2123,7 @@ Return a bytes object containing the values v1, v2, ... packed according\n\
 to the format string.  See help(struct) for more on format strings.");
 
 static PyObject *
-pack(PyObject *self, PyObject **args, Py_ssize_t nargs)
+pack(PyObject *self, PyObject *const *args, Py_ssize_t nargs)
 {
     PyObject *s_object = NULL;
     PyObject *format, *result;
@@ -2151,7 +2151,7 @@ that the offset is a required argument.  See help(struct) for more\n\
 on format strings.");
 
 static PyObject *
-pack_into(PyObject *self, PyObject **args, Py_ssize_t nargs)
+pack_into(PyObject *self, PyObject *const *args, Py_ssize_t nargs)
 {
     PyObject *s_object = NULL;
     PyObject *format, *result;