name sbcl target default.nix url http://sf.net/projects/sbcl/files/sbcl/ version_link '/sbcl/[0-9.]+/$' link "source.tar.bz2" version '.*/sbcl-([0-9.]+)-source.*' '\1' redirect process 'http://[a-z]+[.]dl[.]sourceforge[.]net/' 'mirror://sourceforge/' process '[?].*' ''