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.
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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

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