Index: src/InitTweak/InitTweak.cc
===================================================================
--- src/InitTweak/InitTweak.cc	(revision e9a3b20b59d320eed25770a9bc1951960a34848a)
+++ src/InitTweak/InitTweak.cc	(revision b73bd709bb788f60341596dfaa40285cf1dc0a13)
@@ -474,4 +474,6 @@
 	public:
 		ConstExprChecker() : isConstExpr( true ) {}
+
+		using Visitor::visit;
 
 		virtual void visit( __attribute((unused)) ApplicationExpr *applicationExpr ) { isConstExpr = false; }