1 files changed, 10 insertions, 1 deletions
diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/NativeErrorPrototype.h b/src/3rdparty/webkit/JavaScriptCore/runtime/NativeErrorPrototype.h
index 77bfe8a27..48a9d7e01 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/NativeErrorPrototype.h
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/NativeErrorPrototype.h
@@ -22,10 +22,19 @@
 #define NativeErrorPrototype_h
 
 #include "JSObject.h"
+#ifdef QT_BUILD_SCRIPT_LIB
+#include "ErrorInstance.h"
+#endif
 
 namespace JSC {
 
-    class NativeErrorPrototype : public JSObject {
+    class NativeErrorPrototype :
+#ifdef QT_BUILD_SCRIPT_LIB    //According to ECMAScript Specification 15.11.7, errors must have the "Error" class
+        public ErrorInstance
+#else
+        public JSObject
+#endif
+    {
     public:
         NativeErrorPrototype(ExecState*, PassRefPtr<Structure>, const UString& name, const UString& message);
     };