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.

diff --git a/m4/locking.m4 b/m4/locking.m4
index 2895d88..e5b143b 100644 (file)
--- 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])