defined NS_IMPL_IDS for the mac build only

webshell/tests/viewer/nsViewerApp.cpp

@@ -16,6 +16,10 @@
  * Corporation.  Portions created by Netscape are Copyright (C) 1998
  * Netscape Communications Corporation.  All Rights Reserved.
  */
+#ifdef XP_MAC
+#define NS_IMPL_IDS
+#endif 
+ 
 #include "nsViewerApp.h"
 #include "nsBrowserWindow.h"
 #include "nsWidgetsCID.h"