use copy construction to pass the config along so the main constructor gets run once.

src/eventthread.h

@@ -179,13 +179,15 @@ struct RGSSThreadData
 
 	RGSSThreadData(EventThread *ethread,
 	                 const char *argv0,
-	                 SDL_Window *window)
+	                 SDL_Window *window,
+				     const Config& newconf)
 	    : rqTerm(false),
 	      rqTermAck(false),
 	      ethread(ethread),
 	      argv0(argv0),
 	      window(window),
 	      sizeResoRatio(1, 1),
+	      config(newconf),
 	      rqScreenshot(false)
 	{}
 };

src/main.cpp

@@ -293,8 +293,7 @@ int main(int, char *argv[])
 	}
 
 	EventThread eventThread;
-	RGSSThreadData rtData(&eventThread, argv[0], win);
-	rtData.config = conf;
+	RGSSThreadData rtData(&eventThread, argv[0], win, conf);
 
 	/* Start RGSS thread */
 	SDL_Thread *rgssThread =