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Re: fix in --help output

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-patches(at)postgresql(dot)org
Subject: Re: fix in --help output
Date: 2008-02-21 21:31:41
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-patches

Zdenek Kotala wrote:
> Tom Lane napsal(a):
>> Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM> writes:
>>> I attach fix for --help output. I replaced --NAME... with -NAME and 
>>> add some example. getopt parse -- as a end of options and rest of 
>>> line is not parsed. 
>> Surely this is outright wrong.  Or if you do have a getopt that acts
>> that way, the bug is that we are using it rather than one that acts
>> the way we want.
> Ah, sorry it really does not work.
> However, I get following error on Solaris:
> bash-3.2$ /usr/postgres/8.2/bin/postgres -D /tmp/db --share_buffers=16000
> /usr/postgres/8.2/bin/postgres: illegal option -- share_buffers=16000
> Try "postgres --help" for more information.
> but following command works fine:
> /usr/postgres/8.2/bin/postgres -D /tmp/db -c shared_buffers=16000
> By my opinion problem is in getopt which interprets -- as a end of 
> options list.
> See 
> Guideline 10
> It maybe work on linux but I think it is not portable solution.

-- on its own might indicate the end of arguments, but that's quite 
different from --foo=bar. Guideline 10 of the above surely only refers 
to -- as an entire argument, not to -- as the first two characters of an 
argument. If your getopt treats *any* -- as the end of options then I 
think it is broken (complain to your vendor ;-) ). And the answer is 
known - use the one we have in src/port.



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