Message-ID: <4DAD41CE.5060702@suse.cz>
Date: Tue, 19 Apr 2011 10:03:26 +0200
From: Michal Marek <mmarek@suse.cz>
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To: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: zippel@linux-m68k.org, linux-kbuild@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: LOCALVERSION in setlocalversion
References: <BANLkTikYuYVvXiHvi_kr2H7n29k=veThtw@mail.gmail.com>	<4DAD327B.4030904@suse.cz> <BANLkTikspr9jVNF-VZbnc_MxUYNWad7Kkg@mail.gmail.com>
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On 19.4.2011 09:35, Haojian Zhuang wrote:
> I still have a question. I can't find the semantic of
> ${LOCALVERSION+set} in some
> shell tutorials. Could you help me to figure out a link of introducing this?

It's a test if LOCALVERSION is set or not. See for instance
http://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_06_02,
scroll down to the table that explains the various expansions.

Michal
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