Excise DL_EXPORT/DL_IMPORT from Modules/*. Required adding a prototype

for Py_Main().

Thanks to Kalle Svensson and Skip Montanaro for the patches.

Modules/xxmodule.c

@@ -218,7 +218,7 @@ static PyMethodDef xx_methods[] = {
 
 /* Initialization function for the module (*must* be called initxx) */
 
-DL_EXPORT(void)
+PyMODINIT_FUNC
 initxx(void)
 {
 	PyObject *m;