Xref: utzoo comp.mail.elm:1066 comp.unix.wizards:14564
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uflorida!haven!rutgers!psuvax1!vu-vlsi!dsinc!syd
From: syd@dsinc.UUCP (Syd Weinstein)
Newsgroups: comp.mail.elm,comp.unix.wizards
Subject: How to tell if mail uses flock versus <maildir>/name.lock
Keywords: BSD, locking, mail
Message-ID: <55@dsinc.UUCP>
Date: 6 Feb 89 20:33:17 GMT
Followup-To: comp.mail.elm
Organization: Datacomp Systems, Inc., Huntingdon Valley, PA
Lines: 22


In the 2.2 version of Elm, we are adding the ability to use the
newer flock() style locking of the mailbox.  However, this brings
up a very important question.  How can we tell, at compile time,
which locking is use on a system.

My desire is to make Configure automatically set the type of locking.
But to do so, I need some way of telling.  It can be the content of
an include file, the presence or absence of a file, or the output
of some simple c program or a system command.

If I cannot find a way, I will have to ask the installer if their
system uses flock.  If I ask, I doubt if all installers will know
the correct answer.  If they get it wrong, they could loose a lot
of mail.

Please reply by email to syd@dsinc.UUCP and thanks for your help.
-- 
=====================================================================
Sydney S. Weinstein, CDP, CCP                   Elm Coordinator
Datacomp Systems, Inc.				Voice: (215) 947-9900
{allegra,bpa,vu-vlsi}!dsinc!syd	                FAX:   (215) 938-0235