linux-kernel - Re: [PATCH v3] scripts/setlocalversion: fix a bug when LOCALVERSION is empty

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Date:   Tue, 13 Jul 2021 11:11:33 +0200
From:   Nico Schottelius <nico.schottelius@...leich.ch>
To:     Mikulas Patocka <mpatocka@...hat.com>
Cc:     Nico Schottelius <nico-linuxsetlocalversion@...ottelius.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Masahiro Yamada <masahiroy@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] scripts/setlocalversion: fix a bug when LOCALVERSION
 is empty



Mikulas Patocka <mpatocka@...hat.com> writes:
> I set LOCALVERSION to an empty string (with "export LOCALVERSION="). This
> prevented the kernel from adding a "+" sign to the kernel version. Since
> the commit 042da426f8eb, it no longer works and the kernel adds a "+" sign
> if LOCALVERSION is set and empty.
>
> If you don't like "if [ "${LOCALVERSION+set}" != "set" ]", then please
> provide some other way how to test if the variable is set.

I fail to see the problem you are solving, as that case works exactly
like I wrote in my last mail:

[11:09:03] nb3:~$ export LOCALVERSION=; [ -z "${LOCALVERSION}" ] && echo unset
unset
[11:09:27] nb3:~$ echo $BASH_VERSION
5.1.8(1)-release

Did you try that in your environment?


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