Ian MacKinnon <IMacKinnon(a)telia.co.uk&gt; writes: Is this the case? The pre-patches are generated the same way the beta-n -> beta-n+1 patches are generated and should work with any reasonable version of patch. I know `cvs diff' causes heartache, weeping and gnashing of teeth with malformed filenames in patches, but this is the first I've heard of `cvs rdiff' having a problem. Index: xemacs-20.0/CHANGES-beta diff -u xemacs-20.0/CHANGES-beta:1.125 xemacs-20.0/CHANGES-beta:1.128 --- xemacs-20.0/CHANGES-beta:1.125 Sat Apr 25 21:07:11 1998 +++ xemacs-20.0/CHANGES-beta Wed Apr 29 16:03:42 1998 You have to specify `-p1' to patch to make the first part of the path go away, but that should be all.