--- IO-AIO/AIO.xs	2005/07/22 08:25:22	1.13
+++ IO-AIO/AIO.xs	2005/07/23 18:19:56	1.15
@@ -1,5 +1,3 @@
-#define _XOPEN_SOURCE 500
-
 #include "EXTERN.h"
 #include "perl.h"
 #include "XSUB.h"