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Date:      Fri, 12 Feb 2010 14:26:35 -0500
From:      jhell <jhell@DataIX.net>
To:        Dominic Fandrey <kamikaze@bsdforen.de>
Cc:        Sergio de Almeida Lenzi <lenzi.sergio@gmail.com>, Matthew Seaman <m.seaman@black-earth.co.uk>, freebsd-ports@freebsd.org
Subject:   Re: FreeBSD Ports Problem - Please help
Message-ID:  <alpine.BSF.2.00.1002121414590.29363@pragry.qngnvk.ybpny>
In-Reply-To: <4B759D2F.5090608@bsdforen.de>
References:  <6790187d1002112022q1a0dcd1dxbf9accdba50167c9@mail.gmail.com> <4B7516AA.3010600@black-earth.co.uk> <20100212062506.247d25d5@scorpio.seibercom.net> <4B754270.9030001@black-earth.co.uk> <1265977673.5468.5.camel@lenzinote> <alpine.BSF.2.00.1002121213580.48230@pragry.qngnvk.ybpny> <4B759D2F.5090608@bsdforen.de>

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On Fri, 12 Feb 2010 13:25, kamikaze@ wrote:
> jhell wrote:
>>
>>
>> On Fri, 12 Feb 2010 07:27, lenzi.sergio@ wrote:
>>> try to make it work again (with the now missing libjpeg.so.10...
>>> by inserting a line in the /etc/libmap.conf
>>
>>> echo "libjpeg.so.10 libjpeg.so"  >> /etc/libmap.conf
>>
>>> than probably all will work again... by the time you build all ports,
>>> the later will be linked agains version 11.. and than you can
>>> delete the line in the libmap.conf
>>
>>
>>> Hope this will help.....
>>
>>
>> Among all these you may find it useful to install sysutils/libchk.
>>
>> This utility can play a key role in locating just the packages/ports
>> that need to be rebuilt against the new library.
>
> Hmm, I just tested it, because my port sysutils contains pkg_libchk,
> which has a very similar function.
>
> My script needs 6m14.73s for a full run, whereas libchk only
> requires 3m56.38s.
>
> However libchk yields a lot of false positives, it's quite difficult
> to find the information you need. The output of pkg_libchk looks
> like that:
> hdf5-1.6.9_1: /usr/local/bin/h5perf misses libh5test.so.0
>
> So it's a lot easier to make a list of broken ports. It also only
> lists directly linked libraries, so it really only lists the packages
> that need relinking. A lot of its runtime is dedicated to detecting
> false positives.
>
> It doesn't have libchk's ability to list unused libraries, though.
>
> Regards
>

Never the less its more of a hands on experience when something goes wrong 
and especially with jpeg. Needless to say the only output your really 
looking for is anything with jpeg in it and the file it lists above. False 
positives are just a side effect of a system that uses shared libs and the 
way that installed programs use them.

Some of the programs that I have noticed that looks like false positives 
are firefox mono octave hdf5 and when found usually you can just surf the 
text file by eye and its not to hard to recognize the path that the file 
installed in and dismiss them.

Guess I should have said this is a manual process.

Regards,

-- 

  jhell




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