[yocto] writeup on the mechanics of FILESEXTRAPATHS and bbappend files

[Robert P. J. Day]

On Wed, 17 Apr 2013, Gary Thomas wrote:

> On 2013-04-17 09:03, Paul Eggleton wrote:
> > On Wednesday 17 April 2013 10:24:42 Robert P. J. Day wrote:
> > >    a while back, i dug into how FILESEXTRAPATHS worked with respect to
> > > .bbappend files and i wrote it up, just updated it a bit here:
> > >
> > > http://www.crashcourse.ca/wiki/index.php/FILESEXTRAPATHS_and_bbappend_files
> > >
> > > do i have it about right? it seemed that the underlying details
> > > weren't really explained well in any of the current yocto docs, and i
> > > wanted something i could point students at.
> >
> > It looks OK to me although if you're going to point students at it I might
> > suggest moving the "don't look here!" stuff elsewhere ;)
> >
> > Also as I believe I mentioned before, FILESEXTRAPATHS adds not just one
> > directory but an "entire list of directories" is it allows bbappend file
> > path
> > behaviour to match that of the recipe itself.
>
> I also think it would be good to point out the use of := in the
> FILESEXTRAPATHS assignment and why it's important.

  done:

http://www.crashcourse.ca/wiki/index.php/FILESEXTRAPATHS_and_bbappend_files#Adding_the_meta-yocto_layer_and_building_for_a_BeagleBoard

i'm already unhappy with the way that whole page is written so i'll
redesign it this weekend, and maybe add a bit more. i just remember it
taking me a while to truly understand what was happening there so i
figured i'd better write it down before i forgot.

rday

-- 

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Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
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