Made gnome printing stuff return wxPRINT_CANCELLED if

it has been canceled.
  Moved the FORCE_LINK code from app.cpp to the sample
    as I cannot find the right place for it. We'd need
    an empty extrya file for ADV lib only for that.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@31935 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/gnome/gprint.cpp

@@ -795,7 +795,7 @@ wxDC* wxGnomePrinter::PrintDialog( wxWindow *parent )
     int ret = dialog.ShowModal();
     if (ret == wxID_CANCEL)
     {
-        sm_lastError = wxPRINTER_ERROR;
+        sm_lastError = wxPRINTER_CANCELLED;
         return NULL;
     }