diff --color -Naur CEGUI-0.7.9.old/cegui/include/CEGUISystem.h CEGUI-0.7.9/cegui/include/CEGUISystem.h
--- CEGUI-0.7.9.old/cegui/include/CEGUISystem.h	2013-01-12 18:07:24.000000000 +0100
+++ CEGUI-0.7.9/cegui/include/CEGUISystem.h	2017-11-03 00:10:40.105586714 +0100
@@ -1123,12 +1123,6 @@
            ScriptModule* scriptModule, const String& configFile,
            const String& logFile);
 
-    /*!
-    \brief
-        Destructor for System objects.
-    */
-    ~System(void);
-
 	/*!
 	\brief
 		Given Point \a pt, return a pointer to the Window that should receive a mouse input if \a pt is the mouse location.
@@ -1364,6 +1358,13 @@
     RenderedStringParser* d_customRenderedStringParser;
     //! true if mouse click events will be automatically generated.
     bool d_generateMouseClickEvents;
+
+protected:
+    /*!
+    \brief
+        Destructor for System objects.
+    */
+    ~System(void);
 };
 
 } // End of  CEGUI namespace section
diff --color -Naur CEGUI-0.7.9.old/cegui/include/RendererModules/OpenGL/CEGUIOpenGLRenderer.h CEGUI-0.7.9/cegui/include/RendererModules/OpenGL/CEGUIOpenGLRenderer.h
--- CEGUI-0.7.9.old/cegui/include/RendererModules/OpenGL/CEGUIOpenGLRenderer.h	2013-01-12 18:07:24.000000000 +0100
+++ CEGUI-0.7.9/cegui/include/RendererModules/OpenGL/CEGUIOpenGLRenderer.h	2017-11-03 00:10:56.968556323 +0100
@@ -291,12 +291,6 @@
     */
     OpenGLRenderer(const Size& display_size, const TextureTargetType tt_type);
 
-    /*!
-    \brief
-        Destructor for OpenGLRenderer objects
-    */
-    virtual ~OpenGLRenderer();
-
     //! init the extra GL states enabled via enableExtraStateSettings
     void setupExtraStates();
 
@@ -336,6 +330,13 @@
     OGLTextureTargetFactory* d_textureTargetFactory;
     //! What blend mode we think is active.
     BlendMode d_activeBlendMode;
+
+protected:
+    /*!
+    \brief
+        Destructor for OpenGLRenderer objects
+    */
+    virtual ~OpenGLRenderer();
   };
 
 } // End of  CEGUI namespace section
diff --color -Naur CEGUI-0.7.9.old/cegui/src/XMLParserModules/TinyXMLParser/CEGUITinyXMLParser.cpp CEGUI-0.7.9/cegui/src/XMLParserModules/TinyXMLParser/CEGUITinyXMLParser.cpp
--- CEGUI-0.7.9.old/cegui/src/XMLParserModules/TinyXMLParser/CEGUITinyXMLParser.cpp	2013-01-12 18:07:24.000000000 +0100
+++ CEGUI-0.7.9/cegui/src/XMLParserModules/TinyXMLParser/CEGUITinyXMLParser.cpp	2017-11-03 00:37:06.384155617 +0100
@@ -145,7 +145,7 @@
                 processElement(childNode->ToElement());
                 break;
             case CEGUI_TINYXML_NAMESPACE::TiXmlNode::CEGUI_TINYXML_TEXT:
-                if (childNode->ToText()->Value() != '\0')
+                if (childNode->ToText()->Value() != NULL)
                     d_handler->text((utf8*)childNode->ToText()->Value());
                 break;
 
diff --color -Naur CEGUI-0.7.9.old/configure.ac CEGUI-0.7.9/configure.ac
--- CEGUI-0.7.9.old/configure.ac	2013-01-12 18:07:24.000000000 +0100
+++ CEGUI-0.7.9/configure.ac	2017-11-03 00:53:07.011026565 +0100
@@ -14,7 +14,8 @@
 
 AC_INIT([CEGUI], [CEGUI_RELEASE_VERSION], [http://mantis.cegui.org.uk/], [CEGUI])
 AC_CONFIG_SRCDIR([cegui/src/CEGUIBase.cpp])
-AM_INIT_AUTOMAKE([dist-zip tar-ustar])
+AM_INIT_AUTOMAKE([dist-zip tar-ustar subdir-objects])
+AM_SILENT_RULES([yes])
 AC_CONFIG_HEADER([cegui/include/config.h])
 AC_CANONICAL_HOST