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MIME-Version: 1.0
Date: Tue, 19 Apr 2011 14:42:39 +0800
Message-ID: <BANLkTikYuYVvXiHvi_kr2H7n29k=veThtw@mail.gmail.com>
Subject: LOCALVERSION in setlocalversion
From: Haojian Zhuang <haojian.zhuang@gmail.com>
To: zippel@linux-m68k.org, linux-kbuild@vger.kernel.org,
        linux-kernel@vger.kernel.org
Content-Type: text/plain; charset=ISO-8859-1
Sender: linux-kernel-owner@vger.kernel.org
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Lines: 31

Hi,

In scripts/setlocalversion under linux kernel tree, the scripts seems
a little strange.

# scm version string if not at a tagged commit
if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then
        # full scm version string
        res="$res$(scm_version)"
else
        # append a plus sign if the repository is not in a clean
        # annotated or signed tagged state (as git describe only
        # looks at signed or annotated tags - git tag -a/-s) and
        # LOCALVERSION= is not specified
        if test "${LOCALVERSION+set}" != "set"; then
                scm=$(scm_version --short)
                res="$res${scm:++}"
        fi
fi

LOCALVERSION isn't assigned in any place. Only CONFIG_LOCALVERSION
can be assigned in .config file.
Why do we need to check LOCALVERSION at here?

Thanks
Haojian
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