diff -Nur cone-0.84-orig/curses/cursesobject.H cone-0.84/curses/cursesobject.H
--- cone-0.84-orig/curses/cursesobject.H	2003-05-27 16:09:07.000000000 +0200
+++ cone-0.84/curses/cursesobject.H	2011-11-17 20:27:31.392803554 +0100
@@ -21,6 +21,7 @@
 
 #include "../curses/curses_config.h"
 #include <set>
+#include <cstdlib>
 
 class cursesPtrBase {
 public:
diff -Nur cone-0.84-orig/libmail/objectmonitor.H cone-0.84/libmail/objectmonitor.H
--- cone-0.84-orig/libmail/objectmonitor.H	2009-06-27 19:05:35.000000000 +0200
+++ cone-0.84/libmail/objectmonitor.H	2011-11-17 20:28:12.743801021 +0100
@@ -16,7 +16,7 @@
 // will return NULL
 
 #include <set>
-
+#include <cstdlib>
 #include "namespace.H"
 
 LIBMAIL_START