fix build with old pango versions which don't define PANGO_VERSION_CHECK(), closes #16660

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@78140 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/window.cpp

@@ -290,6 +290,7 @@ PangoContext* wxGetPangoContext()
         {
             context = gdk_pango_context_get_for_screen(screen);
         }
+#ifdef PANGO_VERSION_CHECK
 #if PANGO_VERSION_CHECK(1,22,0)
         else // No default screen.
         {
@@ -304,6 +305,7 @@ PangoContext* wxGetPangoContext()
             //else: pango_font_map_create_context() not available
         }
 #endif // Pango 1.22+
+#endif // PANGO_VERSION_CHECK
     }
 
     return context;