Index: Widgets/Preference.c
--- Widgets/Preference.c.orig
+++ Widgets/Preference.c
@@ -35,6 +35,9 @@
 #include <X11/Xaw/Box.h>
 #include <AxeText.h>
 
+#include <stdio.h>
+#include <stdlib.h>
+
 #include <PreferenceP.h>
 
 #define PRIVATE(w,field) (((PreferenceWidget) w)->preference.field)