diff --git a/.gitignore b/.gitignore
index fc33dca..96312f7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,10 @@
 *.pro.user
 / build
+*.o
+*.dylib
+*.app
+qrc_*
+moc_*
+ui_*
+Makefile
+
diff --git a/ads.pro b/ads.pro
index 63d1887..b798785 100644
--- a/ads.pro
+++ b/ads.pro
@@ -1,7 +1,9 @@
 TEMPLATE = subdirs
-CONFIG   += ordered
 
 SUBDIRS = \
 	src \
 	demo \
 	example
+
+demo.depends = src
+example.depends = src
diff --git a/demo/MainWindow.cpp b/demo/MainWindow.cpp
index 99c1e6f..e547916 100644
--- a/demo/MainWindow.cpp
+++ b/demo/MainWindow.cpp
@@ -57,7 +57,6 @@
 #include "DockManager.h"
 #include "DockWidget.h"
 #include "DockAreaWidget.h"
-#include "AnimatedLabel.h"
 
 
 //============================================================================
diff --git a/src/DockAreaWidget.cpp b/src/DockAreaWidget.cpp
index b065cf1..5e05f36 100644
--- a/src/DockAreaWidget.cpp
+++ b/src/DockAreaWidget.cpp
@@ -1,17 +1,17 @@
 /*******************************************************************************
 ** Qt Advanced Docking System
 ** Copyright (C) 2017 Uwe Kindler
-** 
+**
 ** This library is free software; you can redistribute it and/or
 ** modify it under the terms of the GNU Lesser General Public
 ** License as published by the Free Software Foundation; either
 ** version 2.1 of the License, or (at your option) any later version.
-** 
+**
 ** This library is distributed in the hope that it will be useful,
 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 ** Lesser General Public License for more details.
-** 
+**
 ** You should have received a copy of the GNU Lesser General Public
 ** License along with this library; If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
@@ -61,9 +61,6 @@ namespace ads
 {
 static const char* const INDEX_PROPERTY = "index";
 static const char* const ACTION_PROPERTY = "action";
-static const char* const DOCKWIDGET_PROPERTY = "dockwidget";
-static const int APPEND = -1;
-
 
 /**
  * New dock area layout mimics stack layout but only inserts the current
diff --git a/src/DockWidgetTab.h b/src/DockWidgetTab.h
index 692d940..c72f2df 100644
--- a/src/DockWidgetTab.h
+++ b/src/DockWidgetTab.h
@@ -131,7 +131,7 @@ public:
 	bool isClosable() const;
 
 public slots:
-	virtual void setVisible(bool visible);
+	virtual void setVisible(bool visible) override;
 
 signals:
 	void activeTabChanged();