Added Lua window hooks to old sdl port that are now needed by core library. These functions do not do much on the old port and really only exist to resolve linker issues.

src/drivers/sdl/sdl.cpp

@@ -77,6 +77,8 @@ int pal_emulation;
 int dendy;
 bool swapDuty;
 
+static bool luaScriptRunning = false;
+
 // -Video Modes Tag- : See --special
 static const char *DriverUsage=
 "Option         Value   Description\n"
@@ -1002,6 +1004,27 @@ void FCEUD_PrintError(const char *errormsg)
 	fprintf(stderr, "%s\n", errormsg);
 }
 
+//----------------------------------------------------
+void WinLuaOnStart(intptr_t hDlgAsInt)
+{
+	luaScriptRunning = true;
+
+	//printf("Lua Script Running: %i \n", luaScriptRunning );
+}
+//----------------------------------------------------
+void WinLuaOnStop(intptr_t hDlgAsInt)
+{
+	luaScriptRunning = false;
+
+	//printf("Lua Script Running: %i \n", luaScriptRunning );
+}
+//----------------------------------------------------
+void PrintToWindowConsole(intptr_t hDlgAsInt, const char* str)
+{
+	printf("Lua Output: %s\n", str );
+}
+//----------------------------------------------------
+
 
 // dummy functions