Excise DL_EXPORT/DL_IMPORT from Modules/*.  Required adding a prototype
for Py_Main().

Thanks to Kalle Svensson and Skip Montanaro for the patches.
diff --git a/Modules/_localemodule.c b/Modules/_localemodule.c
index 5ed3eaf..ab86fa4 100644
--- a/Modules/_localemodule.c
+++ b/Modules/_localemodule.c
@@ -649,7 +649,7 @@
   {NULL, NULL}
 };
 
-DL_EXPORT(void)
+PyMODINIT_FUNC
 init_locale(void)
 {
     PyObject *m, *d, *x;