From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <Wenzong.Fan@windriver.com>
Received: from mail.windriver.com (mail.windriver.com [147.11.1.11])
	by mail.openembedded.org (Postfix) with ESMTP id 3BE876B7CF
	for <openembedded-core@lists.openembedded.org>;
	Thu, 15 Aug 2013 10:14:56 +0000 (UTC)
Received: from ALA-HCA.corp.ad.wrs.com (ala-hca.corp.ad.wrs.com
	[147.11.189.40])
	by mail.windriver.com (8.14.5/8.14.3) with ESMTP id r7FAEu6I003454
	(version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL);
	Thu, 15 Aug 2013 03:14:56 -0700 (PDT)
Received: from [128.224.162.218] (128.224.162.218) by ALA-HCA.corp.ad.wrs.com
	(147.11.189.40) with Microsoft SMTP Server id 14.2.342.3;
	Thu, 15 Aug 2013 03:14:56 -0700
Message-ID: <520CAA18.1080706@windriver.com>
Date: Thu, 15 Aug 2013 18:14:48 +0800
From: wenzong fan <wenzong.fan@windriver.com>
User-Agent: Mozilla/5.0 (X11; Linux i686;
	rv:17.0) Gecko/20130623 Thunderbird/17.0.7
MIME-Version: 1.0
To: Paul Eggleton <paul.eggleton@linux.intel.com>
References: <520C9F8A.7080703@windriver.com> <2523779.jWvvpX7hhR@helios>
In-Reply-To: <2523779.jWvvpX7hhR@helios>
Cc: openembedded-core@lists.openembedded.org
Subject: Re: About PACKAGECONFIG audit
X-BeenThere: openembedded-core@lists.openembedded.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: Patches and discussions about the oe-core layer
	<openembedded-core.lists.openembedded.org>
List-Unsubscribe: <http://lists.openembedded.org/mailman/options/openembedded-core>,
	<mailto:openembedded-core-request@lists.openembedded.org?subject=unsubscribe>
List-Archive: <http://lists.openembedded.org/pipermail/openembedded-core/>
List-Post: <mailto:openembedded-core@lists.openembedded.org>
List-Help: <mailto:openembedded-core-request@lists.openembedded.org?subject=help>
List-Subscribe: <http://lists.openembedded.org/mailman/listinfo/openembedded-core>,
	<mailto:openembedded-core-request@lists.openembedded.org?subject=subscribe>
X-List-Received-Date: Thu, 15 Aug 2013 10:14:56 -0000
Content-Type: text/plain; charset="ISO-8859-1"; format=flowed
Content-Transfer-Encoding: 7bit

On 08/15/2013 05:44 PM, Paul Eggleton wrote:
> Hi Wenzong,
>
> On Thursday 15 August 2013 17:29:46 wenzong fan wrote:
>> We have seen some problems like this:
>>
>> $ bitbake libcap
>>
>> ld: warning: libaudit.so.1, needed by .../lib64/libpam.so, not found
>> .../lib64/libpam.so: undefined reference to `audit_open'
>> .../lib64/libpam.so: undefined reference to `audit_close'
>> ......
>>
>> The libaudit has been available and libpam build with it, after we run
>> another build with sstate-cache and w/o libaudit, the error occurs. The
>> solution in these cases is to use PACKAGECONFIG to lay out dependencies
>> on optional packages and make them explicit. We need to run an audit and
>> catch all of these issues.
>>
>> A probable ways maybe:
>>
>> 1) Run world build to generate the sysroots as much as possible;
>
> (See Ross's reply for a pointer to the new test-dependencies script)

That would be a good start point, I have run that script once, but looks 
not any failure occurs.

I'll find a box and run it periodically.

Thanks
Wenzong

>
>> 2) Run 'configure --help' on each package to spot all of the optional
>> dependencies, and convert them into PACKAGECONFIG specs/or any other
>> prompts.
>
> Actually I have started along this line as well, putting the output of
> configure --help into buildhistory so you can see the differences. I'm not
> totally sure how useful it is at the moment and it will need some smooting out
> to avoid known differences (paths etc.).
>
> Cheers,
> Paul
>