Re: Need help in understanding JHBuild

On Tue, Jun 4, 2013 at 4:57 PM, Ankit Arora <[email protected]> 
wrote:
> Okay so I finally built rhythmbox via jhbuild after 8 hours of 
> struggle.
> 

If you just want rhythmbox it shouldn't take that much struggling!  :)  
What distribution (i.e. operating system) and version of it are you 
running?  Depending on that, you might be able to build rhythmbox from 
git master by building only a few libraries, not the whole jhbuild 
world.

> Still need a bit of clarification.
> 
> The plugin guide for rhythmbox mentions two paths where rhythmbox 
> looks for plugins. $libdir/rhythmbox/plugins and 
> $HOME/.local/share/rhythmbox/plugins.
> Now considering my 'prefix' or install path for jhbuild is say 
> ~/dev/jhbuild/install/,
> What would these directories correspond to in this jhbuild sandbox?
> I see similar directories as 
> ~/dev/jhbuild/install/lib64/rhythmbox/plugins and 
> ~/dev/jhbuild/install/share/rhythmbox/plugins respectively.
> 

Yes, $libdir/rhythmbox/plugins is 
~/dev/jhbuild/install/lib64/rhythmbox/plugins.  
$HOME/.local/share/rhythmbox/plugins is still exactly that - it won't 
map to anything under ~/dev/jhbuild.

> 
> Is this the way it's supposed to be? i mean, my jhbuilt sandboxed 
> rhythmbox would know from some internal jhbuild magic that $libdir 
> for itself is "~/dev/jhbuild/install/lib64/" and not "/usr/lib" like 
> it normally is?
> 

It's not that magical.  All that's going on is that jhbuild is passing 
'--libdir ~/dev/jhbuild/install/lib64/' when it configures rhythmbox.  
You could achieve the same by passing the same configure argument when 
building outside jhbuild, if you like.  Well, there's a little more 
magic: you need that directory to be in your LD_LIBRARY_PATH at 
runtime, and jhbuild will set that up for you.

adam

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