From 5b83e4c3cdafdcb5a4e8b6302314dca974a67092 Mon Sep 17 00:00:00 2001
From: David Levine <levinedl@acm.org>
Date: Sun, 2 Feb 2014 22:34:14 -0600
Subject: [PATCH] netbsd uses flock by default for mail spool locking, as
 reported by Robert Elz.  Use *netbsd* to also include knetbsd, though I don't
 know for sure that it uses flock.

---
 m4/locking.m4 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/m4/locking.m4 b/m4/locking.m4
index 2895d882..e5b143b5 100644
--- a/m4/locking.m4
+++ b/m4/locking.m4
@@ -11,7 +11,7 @@ AC_DEFUN([NMH_LOCKING],
 AS_CASE(["$host_os"],
   [aix*|cygwin*|linux*],
     [default_locktype="fcntl"],
-  [freebsd*|openbsd*|darwin*], [default_locktype="flock"],
+  [freebsd*|*netbsd*|openbsd*|darwin*], [default_locktype="flock"],
   [default_locktype="dot"])
 
 AC_MSG_CHECKING([default locking method for the mail spool])
-- 
2.56.0