anyone know of a single OE/yocto recipe that uses BBVERSIONS?

anyone know of a single OE/yocto recipe that uses BBVERSIONS?

[Robert P. J. Day]

  collecting examples of recipe design and variants, and bitbake user
manual refers to BBVERSIONS variable to allow a recipe file to build
multiple versions from one file, but in the dozen or so layers i have
checked out, i've seen not a single example of usage of that variable.

  are there any?

rday

-- 

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

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
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Re: anyone know of a single OE/yocto recipe that uses BBVERSIONS?

[Christopher Larson]

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On Mon, Aug 11, 2014 at 4:40 AM, Robert P. J. Day <rpjday@crashcourse.ca>
wrote:

>   collecting examples of recipe design and variants, and bitbake user
> manual refers to BBVERSIONS variable to allow a recipe file to build
> multiple versions from one file, but in the dozen or so layers i have
> checked out, i've seen not a single example of usage of that variable.
>
>   are there any?
>

Nope, as far as I know, it's not being used at all at the moment. The idea
was we could use it to avoid having multiple recipes with different
versions and .inc includes all over the place, but then policy changed to
tend to prefer having just a single recipe version around, so it's of less
use. If you'd like to see an example of a prototyped recipe using it, which
I created while implementing BBVERSIONS, see
https://gist.github.com/kergoth/338382. This was an attempt, at the time
(2010) to have a single m4 recipe that was capable of building every m4
version that existed. It was mostly to see if it could be done :)
-- 
Christopher Larson
clarson at kergoth dot com
Founder - BitBake, OpenEmbedded, OpenZaurus
Maintainer - Tslib
Senior Software Engineer, Mentor Graphics

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Re: anyone know of a single OE/yocto recipe that uses BBVERSIONS?

[Robert P. J. Day]

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On Mon, 11 Aug 2014, Christopher Larson wrote:

>
> On Mon, Aug 11, 2014 at 4:40 AM, Robert P. J. Day <rpjday@crashcourse.ca> wrote:
>         collecting examples of recipe design and variants, and bitbake user
>       manual refers to BBVERSIONS variable to allow a recipe file to build
>       multiple versions from one file, but in the dozen or so layers i have
>       checked out, i've seen not a single example of usage of that variable.
>
>         are there any?
>
>
> Nope, as far as I know, it's not being used at all at the moment.
> The idea was we could use it to avoid having multiple recipes with
> different versions and .inc includes all over the place, but then
> policy changed to tend to prefer having just a single recipe version
> around, so it's of less use. If you'd like to see an example of a
> prototyped recipe using it, which I created while implementing
> BBVERSIONS, see https://gist.github.com/kergoth/338382. This was an
> attempt, at the time (2010) to have a single m4 recipe that was
> capable of building every m4 version that existed. It was mostly to
> see if it could be done :)

  fair enough ... given that it doesn't seem to have a lot of
utilitarian value, i won't bother mentioning it in my notes. or, at
most, very briefly.

rday

-- 

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

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
========================================================================