Add DL_EXPORT() to all modules that could possibly be used
on BeOS or Windows.
diff --git a/Modules/audioop.c b/Modules/audioop.c
index e7edfec..76fba98 100644
--- a/Modules/audioop.c
+++ b/Modules/audioop.c
@@ -1402,7 +1402,7 @@
 	{ 0,          0 }
 };
 
-void
+DL_EXPORT(void)
 initaudioop()
 {
 	PyObject *m, *d;