anchor.diff:  
     
     # Build our custom authentication modules.
  -  authModules = import ../../../services/subversion/src/auth {
  +  authModules = import ../../../../services/subversion/src/auth {
       inherit (pkgs) stdenv apacheHttpd;
     };
   
  
positive.code: 
  
    # Build ViewVC.
    viewvc = import ../../../services/subversion/src/viewvc {
      inherit (pkgs) fetchurl stdenv python enscript;
      inherit urlPrefix reposDir adminAddr subversion;
    };
  
negative.code: 
    staticFiles = substituteInSome {
      name = "svn-static-files";
      src = pkgs.lib.cleanSource ../../../../services/subversion/root;
      files = ["xsl/svnindex.xsl"];
      inherit urlPrefix;
    };
  