wxOS2/OW warning and build fixes.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@35282 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

contrib/samples/stc/edit.h

@@ -139,6 +139,8 @@ private:
 
 };
 
+#if wxUSE_PRINTING_ARCHITECTURE
+
 //----------------------------------------------------------------------------
 //! EditPrint
 class EditPrint: public wxPrintout {
@@ -165,5 +167,6 @@ private:
     bool PrintScaling (wxDC *dc);
 };
 
-#endif // _EDIT_H_
+#endif // wxUSE_PRINTING_ARCHITECTURE
 
+#endif // _EDIT_H_