Index: src/SynTree/Attribute.h
===================================================================
--- src/SynTree/Attribute.h	(revision ca7843715cba84b4e9ce1f8e7b56b833997ab71d)
+++ src/SynTree/Attribute.h	(revision 405c5926c54ac57ff71e511c1792b90be12f7b82)
@@ -40,4 +40,6 @@
 };
 
+const std::list< Attribute * > noAttributes;
+
 #endif