From mboxrd@z Thu Jan  1 00:00:00 1970
From: Neil Brown <neilb@suse.de>
Subject: Re: ANNOUNCE: mdadm 2.6.2 - A tool for managing Soft RAID under Linux
Date: Wed, 30 May 2007 06:49:40 +1000
Message-ID: <18012.37348.161496.473678@notabene.brown>
References: <18001.9765.808761.531809@notabene.brown>
	<200705291829.54274.thomas.jarosch@intra2net.com>
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In-Reply-To: message from Thomas Jarosch on Tuesday May 29
Sender: linux-raid-owner@vger.kernel.org
To: Thomas Jarosch <thomas.jarosch@intra2net.com>
Cc: linux-raid@vger.kernel.org
List-Id: linux-raid.ids

On Tuesday May 29, thomas.jarosch@intra2net.com wrote:
> Hello Neil,
> 
> On Monday, 21. May 2007, you wrote:
> > I am pleased to announce the availability of
> >    mdadm version 2.6.2
> 
> Thanks for releasing mdadm 2.6.2. It contains a fix for "--test"
> I was looking for right at the moment :-)
> 
> mdadm fails to compile if you enable "-O2" using gcc 4.1.1 because of -Werror:
> 
> cc1: warnings being treated as errors
> sysfs.c: In function 'sysfs_read':
> sysfs.c:97: warning: value computed is not used
> sysfs.c:119: warning: value computed is not used
> sysfs.c:127: warning: value computed is not used
> sysfs.c:133: warning: value computed is not used
> sysfs.c:139: warning: value computed is not used
> sysfs.c:178: warning: value computed is not used

Those are bogus warnings. Each is
	strcpy(base, "xxxxx");
and base most certainly is used., though I can see how gcc might not
notice if it is being too clever. Maybe you need to get gcc-4.1.2?
or 
   make CWFLAGS=-Wall

Thanks for the report.

NeilBrown