Index: geo/drgeo_figure.cc
--- geo/drgeo_figure.cc.orig
+++ geo/drgeo_figure.cc
@@ -48,7 +48,7 @@
 #include "drgeo_dialog.h"
 #include "traite.h"
 
-extern struct
+extern struct fooclang
 {
   drgeoPoint mouse;
   drgeoFigure *figure;
@@ -1044,7 +1044,7 @@ drgeoFigure::getKeyFromValueOnHash (gpointer value)
     return NULL;
   else
     // data.key is a * gchar get it content as a gpointer
-    return GINT_TO_POINTER (strtol ((gchar *) data.key, NULL, 16));
+    return GUINT_TO_POINTER (strtoul ((gchar *) data.key, NULL, 16));
 }
 
 void