Include wx/app.h according to precompiled headers of wx/wx.h (with other minor cleaning).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@38945 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/cocoa/main.cpp

@@ -1,19 +1,22 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        cocoa/main.cpp
+// Name:        src/cocoa/main.cpp
 // Purpose:     Entry point
 // Author:      David Elliott
 // Modified by:
 // Created:     2002/11/11
 // RCS-ID:      $Id:
 // Copyright:   (c) 2002 David Elliott
-// Licence:   	wxWindows license
+// Licence:     wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 /* DFE: ^^^^^ Was that really necessary :-) */
 
-#include "wx/app.h"
+#include "wx/wxprec.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/app.h"
+#endif // WX_PRECOMP
 
 WXDLLEXPORT int main(int argc, char* argv[])
 {
-  return wxEntry(argc, argv);
+    return wxEntry(argc, argv);
 }
-