$NetBSD: patch-configure.ac,v 1.3 2015/08/22 21:23:46 leot Exp $

Recognize Dragonfly.

--- configure.ac.orig	2014-04-22 12:19:42.000000000 +0000
+++ configure.ac
@@ -72,6 +72,10 @@ case $host in
 	backend="openbsd"
 	threads="posix"
 	;;
+*-dragonfly*)
+	AC_MSG_RESULT([DragonflyBSD (using OpenBSD backend)])
+	backend="openbsd"
+	;;
 *-netbsd*)
 	AC_MSG_RESULT([NetBSD])
 	backend="netbsd"
