[gentoo-portage-dev] dynamic runtime dependencies

[Paul de Vrieze <pauldv@gentoo.org>]

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Hi all,

various packages have detection scripts in their configure. Basically 
those scripts implement optional support. In many cases these configure 
scripts can be told to ignore an available lib. Some scripts however can 
not be told so.

What I would want your opinion on is a new variable (DYNRDEPEND) that 
contains a list of packages that will depended on when they are 
available at runtime. This would need to be implemented with logic to 
actually record the existence of those packages in the metadata for 
binary or installed packages.

I believe such a variable would make many packages more transparent and 
would allow for optional dependencies to be used in more cases. As such 
I think it will help avoiding bloat.

Paul

ps. As a sidenote it would be usefull with subversion which can build 
it's own apache2 libs when apache2 is not there. Currently it uses the 
apache2 useflag for this which has a number of drawbacks.

pps. This might also help in making useflags more clear or even against 
useflag hell (too many with different results)

- -- 
Paul de Vrieze
Gentoo Developer
Mail: pauldv@gentoo.org
Homepage: http://www.devrieze.net
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