diff -urp libprelude-1.0.0.orig/bindings/c++/include/prelude.hxx libprelude-1.0.0/bindings/c++/include/prelude.hxx
--- libprelude-1.0.0.orig/bindings/c++/include/prelude.hxx	2011-06-24 12:58:29.000000000 -0400
+++ libprelude-1.0.0/bindings/c++/include/prelude.hxx	2011-06-24 12:59:01.000000000 -0400
@@ -26,6 +26,8 @@
 #ifndef _LIBPRELUDE_PRELUDE_HXX
 #define _LIBPRELUDE_PRELUDE_HXX
 
+#include <stddef.h>
+
 #include "prelude-client.hxx"
 #include "prelude-client-easy.hxx"
 #include "prelude-connection.hxx"