GNU bug report logs - #17774
AIX and lbracket ([) program - will not install on AIX using installp

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From: Michael Felt <mamfelt <at> gmail.com>
To: Eric Blake <eblake <at> redhat.com>
Cc: 17774 <at> debbugs.gnu.org, Paul Eggert <eggert <at> cs.ucla.edu>
Subject: bug#17774: AIX and lbracket ([) program - will not install on AIX using installp
Date: Wed, 18 Jun 2014 08:23:49 +0200

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Well, you guys are the experts. I was trying to be "smart" - thinking that
lbracket 'required' the closing right bracket to keep the shell syntax
checkers happy. Maybe I am expecting too much from my shells need to check
syntax.

FYI - It seems to be working as expected, rather designed - so I shall make
some specialized 'buildaix' components to get around the filenameing
problem.

Will keep you posted.


On Tue, Jun 17, 2014 at 11:16 PM, Eric Blake <eblake <at> redhat.com> wrote:

> On 06/17/2014 02:50 PM, Michael Felt wrote:
> > FYI: the program runs fine, and even from the command line (the extra ]
> at
> > the end must satisify the ksh syntax checking).
>
> Rather, the 'test' binary and the 'lbracket' binary differ in one
> crucial aspect: 'lbracket' requires its last argument in argv[] to be
> "]".  It is not ksh, but lbracket itself that requires the matching ],
> and it is this fact that allows us to obey POSIX while still allowing '[
> --help' to produce help text, even though 'test --help' cannot do so
> (that is, '[' has an escape hatch that 'test' does not).
>
> --
> Eric Blake   eblake redhat com    +1-919-301-3266
> Libvirt virtualization library http://libvirt.org
>
>

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