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Re: Bug in solaris 10 /bin/ksh w.r.t. test -z ")"

From: Stefano Lattarini
Subject: Re: Bug in solaris 10 /bin/ksh w.r.t. test -z ")"
Date: Wed, 8 Sep 2010 14:50:57 +0200
User-agent: KMail/1.13.3 (Linux/2.6.30-2-686; KDE/4.4.4; i686; ; )

Hi Eric.

On Tuesday 07 September 2010, Eric Blake wrote:
> Therefore,
> >   $ /bin/ksh -c 'test -z ")"; echo $?' # ready to laugh or cry?
> >   0
> this is yet another case of @var{string} that looks like an
> operator, and yet another reason that you should ALWAYS use test
> x"$val" = x rather than test -z "$val" if you don't know what $val
> contains.
> But yes, giving this particular example in the manual would be
> helpful.
Thanks for having added this to the Autoconf manual.


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