Public SourceMage Discussion List

["Andraž 'ruskie' Levstik" <ruskie AT codemages.net>]

On 10:08:05 2008-08-26 Thomas Orgis <thomas-forum AT orgis.org> wrote:
> Am Tue, 26 Aug 2008 07:28:35 +0200
> schrieb "Andraž 'ruskie' Levstik" <ruskie AT codemages.net>:  
> 
> > Sure it does... it will not break out of the box.  
> 
> Yes...
> 
> > Also what kind of benefit
> > does one get from glib2 support in pkgconfig... I mean after all all
> > it does is read /usr/lib/pkgconfig files iirc
> 
> That's a bit besides the point, isn't it? We could just drop the dep
> entirely, then... make a decision for the user...
> 
> Though I see that checking circular optional dependencies via if
> spell_installed is a measure we should implement asap for the various
> known cases... like this xorg ghostscript thing (still there with
> modular, or not?).
> Or, well.. actually, there it is more funny: The dep is mutually
> optional between xorg and ghostscript.
> So this check would disable it for both on the first cast, where only
> disabling of one would be needed (preferrably the one of xorg on
> ghostscript, since who ever reads these docs?).
> 
> I still think that the hiding of the dependency is not the final
> solution to this, but it would be a measure to minimize breakage (it
> should be hidden with a note given about it).
> What about making a grimoire function for circular_optional_depends?
> that way we have an easy marking of those and can modify the handling
> in future easily.
> 
> What's nagging at the back of my head is the question of indirect
> circular dependencies...
> 

And do you have a suggestion on what to do?

I see it this way:
{optional_,}circular_dependency $foo in both spells DEPENDS file where foo
is one and the other.

When sorcery calls this it would do something like:
ok first cast both but avoid any conflicting depends
then recast the ones that had it enabled right after casting the circulars.

But I don't see this being possible with the current queue model. Since
everything get' parsed before actually starting the cast. For this to work
this would have to be triggered along with the reconfigure after the cast...

--
Andraž "ruskie" Levstik
Source Mage GNU/Linux Games grimoire guru
Geek/Hacker/Tinker

Be sure brain is in gear before engaging mouth.
Quis custodiet ipsos custodies.
Ryle hira.

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