--- wget-1.12/src/sysdep.h.orig	Fri Sep  4 09:31:54 2009
+++ wget-1.12/src/sysdep.h	Fri Oct  2 03:03:22 2009
@@ -67,8 +67,13 @@
 
 #ifdef NAMESPACE_TWEAKS
 
+#if __STDC_VERSION__ >= 199901L
+/* Single UNIX Specification, Version 3 */
+#define _XOPEN_SOURCE 600
+#else
 /* Request the "Unix 98 compilation environment". */
 #define _XOPEN_SOURCE 500
+#endif
 
 /* For Solaris: request everything else that is available and doesn't
    conflict with the above.  */