[OpenAFS] How to use the diff patch? 2

["Jörg P.Pfannmöller"]

No, I want to compile afs by my self. As far as I understand I need to patch with the diff before I do that, but I don´t know how. I mean those two files I have already quoted. How to patch openafs-1.4.2-src.tar.gz with 
 openafs-1.4.2-src.diff?
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Jörg P.Pfannmöller                                
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