[OE-core] Coordinating inter-layer dependencies

[Richard Purdie]

On Thu, 2011-12-01 at 12:23 +0100, Koen Kooi wrote:
> During the past month there have been a number of updates to OE-core
> recipes that triggered parsing errors due to bbappend in other layers.
> A small seleciton:
> 
> * netbase
> * libdrm
> * xserver-xorg
> * clutter
> 
> My view is that layer maintainers need to keep an eye on potential
> breakage and have updates ready when patches land into OE-core.
> Looking back I can see that while the situation is improving a bit,
> it's still not working. The problem with slow updates to layers is
> that (with my angstrom hat on) users (and with my TI hat on) customers
> and coworkers can't do builds without rm'ing the bbappends or
> disabling the layer.


I've been thinking about this. I wondered if the notion of wildcards
for .bbappend might help, e.g. a file called:

netbase_%.bbappend

would match all versions of the netbase recipe.

The % is consistent with PREFERRED_VERSION, I'm a little reluctant to
use * since its a shell quoting mess.

It wouldn't be hard to allow bitbake to support this and would solve
some of the issues we've been having...

Cheers,

Richard