anchor.diff:  
   
     # Build ViewVC.
  -  viewvc = import ../../../services/subversion/src/viewvc {
  +  viewvc = import ../../../../services/subversion/src/viewvc {
       inherit (pkgs) fetchurl stdenv python enscript;
       inherit urlPrefix reposDir adminAddr subversion;
     };
  
positive.code: 
  
    # Build WebSVN.
    websvn = import ../../../services/subversion/src/websvn {
      inherit (pkgs) fetchurl stdenv writeText enscript gnused diffutils;
      inherit urlPrefix reposDir subversion;
      cacheDir = tmpDir;
  
negative.code:   # Build the maintenance scripts and commit hooks.
    scripts = substituteInAll {
      name = "svn-server-scripts";
      src = pkgs.lib.cleanSource ../../../../services/subversion/src/scripts;
  
      # The variables to substitute:
      
  