Add DL_IMPORT(returntype) for all officially exported functions.
diff --git a/Include/objimpl.h b/Include/objimpl.h
index 77177d0..84cee20 100644
--- a/Include/objimpl.h
+++ b/Include/objimpl.h
@@ -55,8 +55,8 @@
 */
 
 #ifndef MS_COREDLL
-extern PyObject *_PyObject_New Py_PROTO((PyTypeObject *));
-extern PyVarObject *_PyObject_NewVar Py_PROTO((PyTypeObject *, int));
+extern DL_IMPORT(PyObject *) _PyObject_New Py_PROTO((PyTypeObject *));
+extern DL_IMPORT(PyVarObject *) _PyObject_NewVar Py_PROTO((PyTypeObject *, int));
 
 #define PyObject_NEW(type, typeobj) ((type *) _PyObject_New(typeobj))
 #define PyObject_NEW_VAR(type, typeobj, n) ((type *) _PyObject_NewVar(typeobj, n))
@@ -66,8 +66,8 @@
    extension module's malloc is used, rather than the core DLL malloc, as there is
    no guarantee they will use the same heap
 */
-extern PyObject *_PyObject_New Py_PROTO((PyTypeObject *, PyObject *));
-extern PyVarObject *_PyObject_NewVar Py_PROTO((PyTypeObject *, int, PyVarObject *));
+extern DL_IMPORT(PyObject *) _PyObject_New Py_PROTO((PyTypeObject *, PyObject *));
+extern DL_IMPORT(PyVarObject *) _PyObject_NewVar Py_PROTO((PyTypeObject *, int, PyVarObject *));
 
 #define PyObject_NEW(type, typeobj) ((type *) _PyObject_New(typeobj,(PyObject *)malloc((typeobj)->tp_basicsize)))
 #define PyObject_NEW_VAR(type, typeobj, n) ((type *) _PyObject_NewVar(typeobj, n, (PyVarObject *)malloc((typeobj)->tp_basicsize + n * (typeobj)->tp_itemsize)))