From:	"John M. Aldrich" <fighteer AT cs DOT net>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: How to locate djgpp.env?
Date:	Sat, 29 Aug 1998 11:36:13 -0400
Organization:	Two pounds of chaos and a pinch of salt.
Lines:	44
Message-ID:	<35E81FED.FC1C7F0B@cs.net>
References:	<Pine DOT SOL DOT 3 DOT 91 DOT 980827121442 DOT 26553B-100000 AT mercury> <3 DOT 0 DOT 1 DOT 16 DOT 19980829103402 DOT 378f1c32 AT shadow DOT net>
NNTP-Posting-Host:	ppp133.cs.net
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Ralph Proctor wrote:
> 
> I changed:
> 
> +TMPDIR=%DJDIR%/tmp
> 
> to
> 
> +TMPDIR=D:/             [D:/ is a ramdrive]
> 
> I only did this because it "SEEMS RIGHT". I think I read somewhere that
> DJGPP.ENV in this case ignores this line anyway if you have a tmpdir
> allocated in your autoexec.bat file. But I just changed the line to be sure.
> Would you comment on this?
> 
> DJVERIFY shows me that my tmpdir works just fine when I compile the test
> file. Also my compiles work as expected.

Don't worry; I don't mean that djgpp.env should never be modified; in
fact, I've made a couple of changes to mine.  There's no problem as long
as you know what you're doing, and keep a backup handy in case you mess
up.

In your case, changing +TMPDIR has the effect of making D:\ the default,
but the setting may still be overridden by your environment.  This is
just fine... except that if you do boot up into a configuration where
your ramdrive isn't active and TMPDIR isn't set to something else, DJGPP
programs will try to use a nonexistent (or nonwriteable if your CD-ROM
becomes D:) drive and will fail.

I use a multi-configuration bootup, and in my autoexec.bat I have code
that detects whether D: (my ramdrive) exists and is writeable, and if
so, it sets TMPDIR there; otherwise it uses my default c:\windows\temp\
directory.

-- 
John M. Aldrich, aka Fighteer I <fighteer AT cs DOT net>  UIN# 7406319

-----BEGIN GEEK CODE BLOCK-----
Version: 3.1
GCS d- s+:- a-->? C++>$ U@>++$ p>+ L>++ E>++ W++ N++ o+>++ K? w(---)
O- M-- V? PS+ PE Y+ PGP- t+(-) 5- X- R+(++) tv+() b+++ DI++ D++ G>++
e(*)>++++ h!() !r !y+()
------END GEEK CODE BLOCK------

- Raw text -