Problems with syncing

Hi, I just sent my first sync-patch to xemacs-patches and when I tried to prepare that patch it became obvious to me how hard it is to do such a sync. There is no way that I could test everything in there because of the support for different operative systems, versions etc. A possible strategy would be just to patch the things that can be tested and verified. On the other hand that would probably make the sync-process very slow. You could argue that the patch is up to review anyway so if it is bad somewhere the reviewers would spot that and fix it. This would probably mean faster progress with the risk of an occasional bug being introduced. What strategy should I use for my next sync project? Yours -- %% Mats