diff --git a/include/wx/app.h b/include/wx/app.h
index 4c9f5b8b9d..04ad7f198a 100644
--- a/include/wx/app.h
+++ b/include/wx/app.h
@@ -17,22 +17,6 @@
     #pragma interface "appbase.h"
 #endif
 
-// ----------------------------------------------------------------------------
-// typedefs
-// ----------------------------------------------------------------------------
-
-#if (defined(__WXMSW__) && !defined(__WXMICROWIN__)) || defined (__WXPM__)
-    class WXDLLEXPORT wxApp;
-    typedef wxApp* (*wxAppInitializerFunction)();
-#else
-    // returning wxApp* won't work with gcc
-    #include "wx/object.h"
-
-    typedef wxObject* (*wxAppInitializerFunction)();
-#endif
-
-class WXDLLEXPORT wxCmdLineParser;
-
 // ----------------------------------------------------------------------------
 // headers we have to include here
 // ----------------------------------------------------------------------------
@@ -49,9 +33,18 @@ class WXDLLEXPORT wxCmdLineParser;
 
 #include "wx/build.h"
 
+class WXDLLEXPORT wxApp;
+class WXDLLEXPORT wxCmdLineParser;
 class WXDLLEXPORT wxLog;
 class WXDLLEXPORT wxMessageOutput;
 
+// ----------------------------------------------------------------------------
+// typedefs
+// ----------------------------------------------------------------------------
+
+// the type of the function used to create a wxApp object on program start up
+typedef wxApp* (*wxAppInitializerFunction)();
+
 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------