[poky] how to detect unstable builds

[Martin Jansa]

On Wed, Jul 30, 2014 at 02:10:28PM +0000, Andreas Schultz wrote:
> Hi,
> 
> Unstable might be not the right term, but I couldn't think of another.
> 
> The issue is that two builds on exactly the same build host, produce
> packages that have different runtime dependencies and also different
> behaviors.
> 
> I encountered this problem with readline, but other package might have
> it as well.
> 
> I try to build an image that contains systemd and (an modified) bind. The
> declared dependencies of systemd contain readline, those of my version of
> bind do not. With multiple parallel task, build order is not guaranteed
> and bind might be build before or after readline.
> 
> bind's autoconf does check for readline and will link bind to it if
> it finds it.
> 
> The outcome is that some builds contain a bind linked against readline,
> while other contain a bind that is not linked against readline.
> 
> ** QA hell breaks loose **
> 
> Is there a way to detect and/or prevent situations like this?

see test-dependencies.sh script in oe-core or reports from it on oe-core
ML, latest is
http://lists.openembedded.org/pipermail/openembedded-core/2014-July/094924.html

buildhistory is also great to compare builds, but e.g.
files-in-image.txt report has a lot of noise from slightly different
binaries, see
https://bugzilla.yoctoproject.org/show_bug.cgi?id=5866

-- 
Martin 'JaMa' Jansa     jabber: Martin.Jansa at gmail.com
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