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Date: Thu, 03 Feb 2011 19:07:23 +0100
From: Rainer Hurling <rhurlin@gwdg.de>
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Cc: freebsd-ports@freebsd.org
Subject: Re: net/mpich2: libraries with many 'undefined symbols'
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On 03.02.2011 15:11 (UTC+1), thierry@FreeBSD.org wrote:
> Selon Rainer Hurling <rhurlin@gwdg.de> le jeu 3 fév 14:19:16 2011 :
>
>> Ok, so I usually have to take care to link libraries like libmpl,
>> libopa etc. in addition to libmpich (or using the wrappers if possible).
>
> Yes, this is the idea. Note: libopa is rarely needed.
>
>>>>> Yet another solution could be to configure mpich2 with
>>>>> --enable-lib-depend, but this is experimental...
>>
>> What would be the consequence of configuring mpich2 with
>> --enable-lib-depend? Would dependencies like libmpl be more integrated
>> in libmpich?
>
> This is based on inter-library dependencies. This is experimental and
> only for shared library builds at this time. It causes libmpich.so to
> depend on libmpl.so and libopa.so. Once you do that, you can just link
> to libmpich.so, and it'll automatically pick the remaining libraries as
> needed.

Ahh, ok. I had assumed that. Since it is experimental until now I think 
it is a bit risky to use it.

Thank again.

> Remark: these explanations come from the authors.