Date: Wed, 6 Jun 2001 19:02:51 +0300 (IDT)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
X-Sender: eliz AT is
To: JT Williams <jeffw AT darwin DOT sfbr DOT org>
cc: djgpp AT delorie DOT com
Subject: Re: __DJGPP__ and MSDOS
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On Wed, 6 Jun 2001, JT Williams wrote:

> -:   - Rename the old gcc.exe to gcc2721.exe.
> -: 
> -:   - Create a directory lib/gcc-lib/djgpp/2.721/ and move the old
> -:     cpp.exe, cc1.exe, and cc1plus.exe from bin to this new directory.
> 
> And the old bin/gxx.exe that comes with gcc2721b.zip ?

gcc2721b.zip didn't have gxx.exe.  The gxx.exe you had was from 
djdev203.zip.  You can leave it alone, since the latest GCC distributions 
come with gpp.exe, not gxx.exe.  In any case, you lose the ability to 
invoke the old GCC via gxx or gpp.

> Just curious: could the 2.7.2.1 info/ directory be relocated as well,
> with appropriate additions to djgpp.env?

No, that won't work, since info.exe doesn't get the settings from the 
[gcc2721] section.

One way to have the old Info files available is to rename them into 
gcc2721.info, gcc2721.i1, etc., and then add a menu item to info/DIR 
which says something like this:

  * GCC2721: (gcc2721).   The old GCC.

You will also have to edit the tag tables in gcc2721.info, so that they 
point to the renamed files.

Thereafter, you should be able to say "info gcc2721" and get the old 
manual.

Alternatively, you could move all the old files into a separate directory 
without any modifications, and then read that manual with this command:

	info -f /foo/bar/gcc.info

where "/foo/bar" is the absolute name of the directory where you moved 
the old Info files.  Note the "-f" switch: it's crucial for this to work, 
since it doesn't go through info/DIR at all.

(As you see, Info doesn't cope very well with multiple versions of the 
same manual installed on the same machine.)