Index: src/InitTweak/InitTweak.cc
===================================================================
--- src/InitTweak/InitTweak.cc	(revision 925b7f40bbde89981715553c5586e86c81e1fa80)
+++ src/InitTweak/InitTweak.cc	(revision 65dc8635169a69696916835b7ef9060318cc4904)
@@ -474,4 +474,6 @@
 	public:
 		ConstExprChecker() : isConstExpr( true ) {}
+
+		using Visitor::visit;
 
 		virtual void visit( __attribute((unused)) ApplicationExpr *applicationExpr ) { isConstExpr = false; }