+2006-08-10  Daiki Ueno  <ueno@unixuser.org>
+
+       * configure.in: Use AC_HELP_STRING.
+
 2006-04-12  Kenichi Okada  <okada@opaopa.org>
 
        * starttls.el (starttls-kill-program): Fix.
 
 AC_REPLACE_FUNCS(basename)
 AC_CHECK_FUNC(poll)
 
-AC_ARG_WITH(openssl,[  --with-openssl=PATH     use OpenSSL from PATH])
-AC_ARG_WITH(gnutls,[  --with-gnutls     use GnuTLS instead of OpenSSL],
+AC_ARG_WITH(openssl, AC_HELP_STRING([--with-openssl=PATH], [use OpenSSL from PATH]))
+AC_ARG_WITH(gnutls, AC_HELP_STRING([--with-gnutls], [use GnuTLS instead of OpenSSL]),
        use_gnutls=true, use_gnutls=false)
 AM_CONDITIONAL(USE_GNUTLS, test x$use_gnutls = xtrue)