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Robert,

I agree Mutt should be fixed to create its temporary files in
non-predictable fashion.  That mutt honours TMPDIR provides a
work-around, not the solution for Mutt.

> Besides, given the choice between the following two options:
> 
> 1) One-time fix applied by upstream developer; by extenension, present
> in all future releases.

For this package only...

> 2) Work around in ~/.bashrc (or equivalent) that must be applied to
> every system accessed.  (Think a year or two down the road when you get
> an account on a new machine).

The flip-side of (2) is that the user avoids this class of problem for
many different packages, present and future.  Setting TMPDIR is a good
solution for the user - all software honouring this variable will nwo
avoid all the issues of the shared /tmp.

> I would say that that option 1 has major advantages:
> 
> 1) Requires one person to do one thing to fix.
> 2) Less error prone/open to peer review.
> 3) Is not dependent on a specific user action.

I like doing both - defence in depth, you know ;)

I largely agree with you; however, I felt that as TMPDIR is a solution
to the entire class of shared /tmp problems, it's worth mentioning.

Yours sincerely,

- -- Mark John Suter  | I know that you  believe  you understand
[EMAIL PROTECTED] | what you think I said, but I am not sure
gpg key id 2C71D63D | you realise that what you  heard  is not
mobile 0411 262 316 | what I meant.        Robert J. McCloskey
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