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Re: gcc -Wall warning for minmax.h

From: Paul Eggert
Subject: Re: gcc -Wall warning for minmax.h
Date: Fri, 10 Jun 2005 10:54:20 -0700
User-agent: Gnus/5.1006 (Gnus v5.10.6) Emacs/21.4 (gnu/linux)

Derek Price <address@hidden> writes:

> +   [test "${$1+set}" = set],
> +   [{ as_var=$1; eval "test \"\${$as_var+set}\" = set"; }])])

That change looks like it can do only good, so I installed it into
Autoconf.  Thanks.

I'm not sure about the documentation change.  It's not yet clear to me
that we want to document AS_LITERAL_IF (the above example being one of
the gotchas).  If we do want to document it we probably need to be
more systematic about it and its friends.  So I left that alone for

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