PCH build fix.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40308 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/button.cpp

@@ -13,6 +13,11 @@
 #if wxUSE_BUTTON
 
 #include "wx/button.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/toplevel.h"
+#endif
+
 #include "wx/stockitem.h"
 
 #include "wx/gtk/private.h"

src/mac/carbon/button.cpp

@@ -15,6 +15,7 @@
 
 #ifndef WX_PRECOMP
     #include "wx/panel.h"
+    #include "wx/toplevel.h"
 #endif
 
 #include "wx/stockitem.h"

src/msw/button.cpp

@@ -36,6 +36,7 @@
     #include "wx/settings.h"
     #include "wx/dcscreen.h"
     #include "wx/dcclient.h"
+    #include "wx/toplevel.h"
 #endif
 
 #include "wx/stockitem.h"