anchor.diff:  
     callSubservices = serverInfo: defs:
       let f = svc:
  -      let config = pkgs.lib.addDefaultOptionValues res.options svc.config;
  +      let config = addDefaultOptionValues res.options svc.config;
             res = svc.function {inherit config pkgs serverInfo;};
         in res;
       in map f defs;
  
positive.code:     }
    ];
  
    extraPath = [httpd] ++ pkgs.lib.concatMap (svc: svc.extraPath) allSubservices;
  
    # Statically verify the syntactic correctness of the generated
    # httpd.conf.
  
negative.code:       "mime" "dav" "status" "autoindex" "asis" "info" "cgi" "dav_fs"
        "vhost_alias" "negotiation" "dir" "imagemap" "actions" "speling"
        "userdir" "alias" "rewrite"
      ] ++ optional cfg.enableSSL "ssl_module";
      
  
    loggingConf = ''
  