m4_dnl (part of complex test harness, not of the library)
m4_dnl - function and other declarations
-m4_dnl This file is part of adns, which is Copyright (C) 1997-1999 Ian Jackson
+m4_dnl This file is
+m4_dnl Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
+m4_dnl
+m4_dnl It is part of adns, which is
+m4_dnl Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
+m4_dnl Copyright (C) 1999 Tony Finch <dot@dotat.at>
m4_dnl
m4_dnl This program is free software; you can redistribute it and/or modify
m4_dnl it under the terms of the GNU General Public License as published by
#include <sys/socket.h>
#include <sys/uio.h>
#include <unistd.h>
-#include <sys/poll.h>
#include "internal.h"
+#ifdef HAVE_POLL
+#include <sys/poll.h>
+#endif
+
/* We override several system calls with #define's */
hm_create_proto_h