--- libgthumb/image-viewer.c.org	Mon Feb  2 20:52:17 2004
+++ libgthumb/image-viewer.c	Mon Feb  2 20:56:10 2004
@@ -21,6 +21,7 @@
  */
 
 #include <math.h>
+#include <sys/types.h>
 #include <gdk/gdkkeysyms.h>
 #include <gtk/gtkadjustment.h>
 #include <gtk/gtkhscrollbar.h>
