The patch is 'mock-cp_al.patch' and applies to mock-0.6.13. I have no place at CentOS to drop packages in. On RPMforge I have (/had) svn access, but this build infrastructure relies on valid URLs in the source lines in the .specs and I don't had the change to put own software tarballs (like Player/ Stage) or (old) software with broken links. And as you see, the real URL in the mock 0.6.13.x-spec is no longer valid, so RPMforge wouldn't build it for me except I change the URL to point to the tarball that I can put onto the Beuth http server - but this is not the idea behind the source line(s). wget http://fedoraproject.org/projects/mock/releases/mock-0.6.13.tar.gz --2009-10-28 15:22:40-- http://fedoraproject.org/projects/mock/releases/mock-0.6.13.tar.gz Resolving fedoraproject.org... 209.132.176.122, 152.46.7.221, 66.35.62.162, ... Connecting to fedoraproject.org|209.132.176.122|:80... connected. HTTP request sent, awaiting response... 404 Not Found 2009-10-28 15:22:42 ERROR 404: Not Found.