SetSelection must not send an event. Fixed an off

by one index, and a crash (probably a Motif bug).
  Improved wxSpinButton appearance.
  Fixed some build warnings here and there in the samples,
removed use of deprecated wxList methods in prntdlgg.cpp, fixed
aot-of-range ID in tipdlg.cpp, fixed some errors detected by
valgrind.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@19825 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/motif/private.h

@@ -15,6 +15,10 @@
 #include "wx/defs.h"
 #include "X11/Xlib.h"
 
+class WXDLLEXPORT wxFont;
+class WXDLLEXPORT wxWindow;
+class WXDLLEXPORT wxSize;
+
 #include "wx/x11/privx.h"
 
 // Put any private declarations here: native Motif types may be used because