From 1aa25a3ca28d8da347dc115636073493db791183 Mon Sep 17 00:00:00 2001
From: Michael Neumann <mneumann@ntecs.de>
Date: Tue, 5 Aug 2014 03:06:02 +0200
Subject: [PATCH] Support DragonFlyBSD

Note that in contrast to FreeBSD, DragonFly does not work
with force_lazy_lock enabled.
---
 configure.ac | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/configure.ac b/configure.ac
index 645bd466..83c60ec5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -283,6 +283,11 @@ case "${host}" in
 	AC_DEFINE([JEMALLOC_PURGE_MADVISE_FREE], [ ])
 	force_lazy_lock="1"
 	;;
+  *-*-dragonfly*)
+	CFLAGS="$CFLAGS"
+	abi="elf"
+	AC_DEFINE([JEMALLOC_PURGE_MADVISE_FREE], [ ])
+	;;
   *-*-linux*)
 	CFLAGS="$CFLAGS"
 	CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"