anchor.diff:  ;;;;SYSTEM:             Common-Lisp
   ;;;;USER-INTERFACE:     NONE
   ;;;;DESCRIPTION
  -;;;;    
  +;;;;
   ;;;;    Check the licenses of the dependencies, write a manifest.
  -;;;;    
  +;;;;
   ;;;;AUTHORS
   ;;;;    <PJB> Pascal J. Bourguignon <pjb@informatimago.com>
   ;;;;MODIFICATIONS
  
positive.code: 
  (defun system-depends-on/recursive (system)
    (delete-duplicates
     (transitive-closure 
      (function system-depends-on)
      (list (string-downcase system)))
     :test 'string=))
  
negative.code: ;;;;BUGS
  ;;;;LEGAL
  ;;;;    AGPL3
  ;;;;
  ;;;;    Copyright Pascal J. Bourguignon 2012 - 2016
  ;;;;
  ;;;;    This program is free software: you can redistribute it and/or modify
  ;;;;    it under the terms of the GNU Affero General Public License as published by
  ;;;;    the Free Software Foundation, either version 3 of the License, or
  ;;;;    (at your option) any later version.
  ;;;;
  ;;;;    This program is distributed in the hope that it will be useful,
  ;;;;    but WITHOUT ANY WARRANTY; without even the implied warranty of
  ;;;;    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  ;;;;    GNU Affero General Public License for more details.
  ;;;;
  ;;;;    You should have received a copy of the GNU Affero General Public License
  ;;;;    along with this program.  If not, see http://www.gnu.org/licenses/
  ;;;;**************************************************************************
  