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Date: Tue, 6 Feb 2007 16:30:27 +0200
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Subject: Re: [sisyphus] compile error: undefined reference to
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В сообщении от Вторник 06 февраля 2007 Andrii Dobrovol`s`kii написал(a):
> Damir Shayhutdinov пишет:
> > 1, Explicit linking dynamic objects with all dso it needs ensures
> > correct soname dependencies and prevent ABI incompatibilities.
> >
> > 2. Unused direct dependencies encumber package with extra dependencies
> > (including soname dependencies). An encumbered program takes more time
> > to load (5% in case of gdm for example), and need more memory mapped
> > to its address space.
> >
> > An encumbered package requires extra packages when installed, and
> > needs extra care when one of unused libraries was updated and its
> > soname was changed.
>
> Увы. Переговоры с апстримом закончились ничем... Править мейкфайлы
> для поддержки --as-needed автор отказался. Аргументы оказались
> неубедительными.
> David> A linker feature that makes `make install' of my program run
> David> 5x slower, makes module loading 50% slower, etc. is not
> David> something that worths to support.
> David> In any case, --as-needed is a hack.  It subverts the normal
> David> linker behaviour -- based on certain assumptions that may or
> David> may not be true.  They are not true for Gwyddion.  Granted,
> David> the linking scheme used by Gwyddion is not common, but
> David> there's nothing incorrect on it (in fact, it prevents some
> David> disasters that can occur when modules are linked with an
> David> independent set of libraries).  The correct approach to
> David> --as-needed would be probably to detect it's in use in
> David> configure and add --no-as-needed to linker flags. This way
> David> everyone would be happy -- execept perhaps people who made
> David> it a religion.
> и т.д...
> А т.к. это, похоже, исключительно наша фишка, нужны боле сильные
> аргументы или правка в процессе сборки rpm-а.
> Насколько я знаю, rpm не умеет вызывать при наложении патчей
> autoconf/automake. Так? Или я не прав?

%__autoreconf умеет

-- 
Led.