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From: Paul Eggert
Subject: Re: _AS_DETECT_BETTER_SHELL speedup
Date: Thu, 27 Jan 2005 21:51:57 -0800
User-agent: Gnus/5.1006 (Gnus v5.10.6) Emacs/21.3 (gnu/linux)

Ralf Wildenhues <address@hidden> writes:

> I do not understand this reasoning.  AFAIK Bourne shells fork with
> redirected { }, newer shells don't.

I'm more worried about shells that don't redirect the 'not found'
message.  These are not necessarily Bourne shells; it's an easy area
to get wrong, and one could easily argue that POSIX does not specify
the behavior in this area (I just looked at the standard, and I
couldn't find a clear specification).

> And on windows, for example, every fork not done is good!

Minor efficiencies like this are not sufficient justification, if
there is a real risk of breaking things elsewhere.

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