[oe] Two quick questions

[Holger Hans Peter Freyther]

On Thursday 31 December 2009 19:55:52 Michael Morrell wrote:
> I have two quick OE questions.
> 
> First, is it possible to use any of the "directives" in a bb file or conf
>  file based on a condition?  For example, can I "inherit" a class or use
>  "addtask" only under certain conditions.  I couldn't find a way to do
>  this.

The question is why do you need this? What would be your usecase? You could 
achieve this with inherit ${MY_VAR} and then have MY_VAR be either "base" 
(which is already included) or what you want... but this is kind of ugly and 
hard to understand.



> Second, if I have some code common to several bb files, I can either put it
>  in a .inc file and use "require" or in a .bbclass file and use "inherit". 
>  Are there any guidelines on which approach is better?

my rule of thumb. .inc if it only belongs to the package. E.g. all "foo" 
packages need this... For a .bbclass two or more packages would need to use 
this functionality. The classic example here is a buildsystem...


z.