--- a/QTfrontend/hats.cpp	Sat Dec 18 21:19:26 2010 +0300
+++ b/QTfrontend/hats.cpp	Sat Dec 18 23:02:39 2010 +0300
@@ -77,6 +77,10 @@
 QVariant HatsModel::headerData(int section,
             Qt::Orientation orientation, int role) const
 {
+    Q_UNUSED(section);
+    Q_UNUSED(orientation);
+    Q_UNUSED(role);
+
     return QVariant();
 }