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From: Richard Purdie <richard.purdie@linuxfoundation.org>
To: Gary Thomas <gary@mlbassoc.com>
Date: Tue, 27 Sep 2011 14:11:19 +0100
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Cc: Poky Project <poky@yoctoproject.org>
Subject: Re: Crazy versioning
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On Tue, 2011-09-27 at 07:00 -0600, Gary Thomas wrote:
> I'm trying to use the recipe meta/recipes-bsp/u-boot/u-boot_2011.06.bb
> Since there are a number of u-boot recipes, I want to make sure I get
> the right one, plus I'm writing a .bbappend file to add patches for
> my own boards.
> 
> So I added this to my MACHINE.conf:
>    PREFERRED_VERSION_u-boot = "2011.06"
> 
> When I try to build, I get this error:
>    NOTE: preferred version 2011.06 of u-boot not available (for item u-boot)
>    NOTE: versions of u-boot available: git v2011.06+git16+b1af6f532e0d348b153d5c148369229d24af361a
> I guess this is because the recipe has this for PV
>    SRCREV = "b1af6f532e0d348b153d5c148369229d24af361a"
>    PV = "v2011.06+git${SRCPV}"
> The truly bizarre thing is that if my cache is rebuilt, the version printed changes, e.g.
>    % touch conf/local.conf
>    % bitbake u-boot
>    NOTE: versions of u-boot available: git v2011.06+git18+b1af6f532e0d348b153d5c148369229d24af361a
> 
> So, how do I specify the right value in PREFERRED_VERSION?

You look at the PV value in the recipe and then write something like:

PREFERRED_VERSION_u-boot = "2011.06+git%"

where % is a wildcard that matches the revision.

The reason the version incremented is down to bitbake thinking multiple
versions were being built and trying to keep versions atomically
increasing.

Cheers,

Richard