To:	opendos AT delorie DOT com
Date:	Sat, 7 Mar 1998 10:29:42 -0600
Subject:	Re: Long File Name Use
Message-ID:	<19980307.103001.2734.9.chrispwilson@juno.com>
References:	<889274541 DOT 2024570 DOT 0 AT thefont DOT demon DOT co DOT uk>
From:	chrispwilson AT juno DOT com (Chris Wilson)

On Sat, 7 Mar 1998 12:42:54 +0000   Robert Parker
<rparker AT thefont DOT demon DOT co DOT uk> writes:
>Hi,
>I've installed the long filename beta product but when I try to pass a
long
>filename to the DJGPP compiler (gcc) it complains that the file cannot
be found.
>
>How does the long filename functionality work ? I would have thought
that
>it intercepted the standard DOS interrupt for opening files and applied
any 
>long filename look-up necessary then passed the actual 8.3 name to the 
>original DOS interrupt - that way programs dont need modifying to use
long
>filenames (providing the program allocates a large enough buffer to
store
>long filenames - which shouldn't be a problem for gcc as it is
presumably a
>port from the Unix implementation)
>
>TIA,
>Robert Parker
>
Windows 95 / Caldera LFN uses a completely different method of accessing
file names than standard MS-DOS. Programs using LFN support use a
different system call (INT 21h, AH=71h) to access file system routines
instead of the standard DOS ones. Even with LFN support loaded, programs
that don't recognize LFN support can still access the old 8.3 file names.
DJGPP probably doesn't recognize long filenames - you still need to use
8.3 ones with it, like you do with almost every DOS program.

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