Add DL_EXPORT() to all modules that could possibly be used
on BeOS or Windows.
diff --git a/Modules/selectmodule.c b/Modules/selectmodule.c
index dfc765c..11f72f5 100644
--- a/Modules/selectmodule.c
+++ b/Modules/selectmodule.c
@@ -378,7 +378,7 @@
 *** IMPORTANT NOTICE ***\n\
 On Windows, only sockets are supported; on Unix, all file descriptors.";
 
-void
+DL_EXPORT(void)
 initselect()
 {
 	PyObject *m, *d;