+m4_dnl This file is part of adns, which is
+m4_dnl Copyright (C) 1997-2000,2003,2006 Ian Jackson
+m4_dnl Copyright (C) 1999-2000,2003,2006 Tony Finch
+m4_dnl Copyright (C) 1991 Massachusetts Institute of Technology
+m4_dnl (See the file INSTALL for full details.)