diff --git a/include/IrrCompileConfig.h b/include/IrrCompileConfig.h
index 82baf126..f74137e4 100644
--- a/include/IrrCompileConfig.h
+++ b/include/IrrCompileConfig.h
@@ -781,6 +781,10 @@ precision will be lower but speed higher. currently X86 only
 	#endif
 #endif
 
+#ifndef __has_feature
+  #define __has_feature(x) 0  // Compatibility with non-clang compilers.
+#endif
+
 #ifdef _DEBUG
 	//! A few attributes are written in CSceneManager when _IRR_SCENEMANAGER_DEBUG is enabled
 	// NOTE: Those attributes were used always until 1.8.0 and became a global define for 1.8.1
diff --git a/include/irrTypes.h b/include/irrTypes.h
index 9911b21e..cadb157f 100644
--- a/include/irrTypes.h
+++ b/include/irrTypes.h
@@ -210,7 +210,7 @@ virtual void somefunc() _IRR_OVERRIDE_;
 #define _IRR_OVERRIDE_ override
 #elif (_MSC_VER >= 1600 ) /* supported since MSVC 2010 */
 #define _IRR_OVERRIDE_ override
-#elif (__clang_major__ >= 3)
+#elif (__clang_major__ >= 3 && __has_feature(cxx_override_control))
 #define _IRR_OVERRIDE_ override
 #else
 #define _IRR_OVERRIDE_
diff --git a/source/Irrlicht/Irrlicht.cpp b/source/Irrlicht/Irrlicht.cpp
index c1abeb74..b40bec67 100644
--- a/source/Irrlicht/Irrlicht.cpp
+++ b/source/Irrlicht/Irrlicht.cpp
@@ -4,7 +4,7 @@
 
 #include "IrrCompileConfig.h"
 
-static const char* const copyright = "Irrlicht Engine (c) 2002-2012 Nikolaus Gebhardt";
+static const char* const copyright = "Irrlicht Engine (c) 2002-2017 Nikolaus Gebhardt";	// put string in binary
 
 #ifdef _IRR_WINDOWS_
 	#include <windows.h>
@@ -46,6 +46,8 @@ namespace irr
 			u32 bits, bool fullscreen,
 			bool stencilbuffer, bool vsync, IEventReceiver* res)
 	{
+		(void)copyright;	// prevent unused variable warning
+
 		SIrrlichtCreationParameters p;
 		p.DriverType = driverType;
 		p.WindowSize = windowSize;