wxToolTip part II

small change in tab traversal
  makefile corrections
  wxGLCanvas moved


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1498 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/defs.h

@@ -1030,6 +1030,7 @@ typedef struct _GtkStyle        GtkStyle;
 typedef struct _GtkAdjustment   GtkAdjustment;
 typedef struct _GtkList         GtkList;
 typedef struct _GtkToolbar      GtkToolbar;
+typedef struct _GtkTooltips     GtkTooltips;
 typedef struct _GtkNotebook     GtkNotebook;
 typedef struct _GtkNotebookPage GtkNotebookPage;