X-Authentication-Warning: delorie.com: mail set sender to djgpp-bounces using -f
X-Recipient: djgpp AT delorie DOT com
X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org
X-Spam-Level: 
X-Spam-Status: No, score=-0.0 required=5.0 tests=BAYES_40 autolearn=disabled
	version=3.3.2
Date: Wed, 05 Dec 2018 14:23:19 +0200
Message-Id: <83k1ko88nc.fsf@gnu.org>
From: "Eli Zaretskii (eliz AT gnu DOT org) [via djgpp AT delorie DOT com]" <djgpp AT delorie DOT com>
To: djgpp AT delorie DOT com
In-reply-to: <874lbskxou.wl-tomas@basun.net> (message from Tomas By on Wed, 05
	Dec 2018 12:41:37 +0100)
Subject: Re: long file names
References: <874lbskxou DOT wl-tomas AT basun DOT net>
X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic]
X-Received-From: 2001:4830:134:3::e
Reply-To: djgpp AT delorie DOT com
Errors-To: nobody AT delorie DOT com
X-Mailing-List: djgpp AT delorie DOT com
X-Unsubscribes-To: listserv AT delorie DOT com
Precedence: bulk

> Date: Wed, 05 Dec 2018 12:41:37 +0100
> From: Tomas By <tomas AT basun DOT net>
> 
> Am running Emacs 19.34 and Latex (Emtex) on a HP Omnibook (MS-DOS 5.0).
> 
> Now I want to use some Latex packages that contain long file names,
> and thought the easiest solution would be to install a LFN driver.
> 
> Have tried DOSLFN and LFNDOS, and in both cases Emacs fails to run,
> with no error message.
> 
> Initially I thought it was because of memory, but this does not seem
> to be the case. Now I suspect it has to do with INT 21H, of which I
> know very little.
> 
> Is there some solution to this problem? A work-around short of
> changing all the file names manually?

Running Emacs with LFN enabled requires that the files which are part
of the Emacs distribution are stored on disk with long names.  Is that
possible with DOSLFN and LFNDOS?  If not, you cannot have what you
want, I think.

If one of these drivers does support long file names on disk, then you
need to install Emacs (unpack the zip files) again with long file
names turned on and with an unzip program that supports long file
names.

Please be warned that long file names support in Emacs 19.34 was
tested on Windows 9X, so it might not work well on plain DOS with LFN
support from another kind of driver.