1 files changed, 5 insertions, 1 deletions
diff --git a/src/script/api/qscriptengine.cpp b/src/script/api/qscriptengine.cpp
index b06ff0c..dc0e0d0 100644
--- a/src/script/api/qscriptengine.cpp
+++ b/src/script/api/qscriptengine.cpp
@@ -776,7 +776,11 @@ QScriptEnginePrivate::QScriptEnginePrivate()
     qMetaTypeId<QObjectList>();
 #endif
 
-    JSC::initializeThreading(); // ### hmmm
+    if (!QCoreApplication::instance()) {
+        qFatal("QScriptEngine: Must construct a Q(Core)Application before a QScriptEngine");
+        return;
+    }
+    JSC::initializeThreading();
 
     globalData = JSC::JSGlobalData::create().releaseRef();
     globalData->clientData = new QScript::GlobalClientData(this);