diff -r 26cb3fa00d29 -r c7219a37cc39 stage3/stage3.hh
--- a/stage3/stage3.hh	Thu Nov 15 17:30:35 2012 +0100
+++ b/stage3/stage3.hh	Fri Nov 16 10:26:23 2012 +0100
@@ -30,9 +30,12 @@
  *
  */
 
+#ifndef _STAGE3_HH
+#define _STAGE3_HH
 
 #include "../util/symtable.hh"
 
 
 int stage3(symbol_c *tree_root);
 
+#endif /* _STAGE3_HH */