$NetBSD: patch-configure,v 1.3 2015/07/21 21:37:12 rjs Exp $

--- configure.orig	2015-06-08 18:41:41.000000000 +0000
+++ configure
@@ -22857,7 +22857,7 @@ case "$host_os" in
         ;;
     esac
   ;;
-  kfreebsd* | freebsd* | netbsd* | openbsd*)
+  dragonfly* | kfreebsd* | freebsd* | netbsd* | openbsd*)
     if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then
       objfmt='BSD-a.out'
     else