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From: Richard Purdie <richard.purdie@linuxfoundation.org>
To: Darren Hart <dvhart@linux.intel.com>
Date: Tue, 10 Sep 2013 16:37:57 +0100
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Cc: Peter Kjellerstedt <peter.kjellerstedt@axis.com>,
	openembedded-core@lists.openembedded.org
Subject: Re: [PATCH 2/2] bb-matrix: Make sure local.conf does not interfere
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On Tue, 2013-09-10 at 08:33 -0700, Darren Hart wrote:
> On Fri, 2013-09-06 at 18:12 +0200, Peter Kjellerstedt wrote:
> > If any of BB_NUMBER_THREADS, PARALLEL_MAKE or SSTATE_DIR happened to be
> > set in local.conf then the bb-matrix script would not perform as
> > intended.
> > 
> > Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
> > ---
> >  scripts/contrib/bb-perf/bb-matrix.sh | 4 ++++
> >  1 file changed, 4 insertions(+)
> > 
> > diff --git a/scripts/contrib/bb-perf/bb-matrix.sh b/scripts/contrib/bb-perf/bb-matrix.sh
> > index 1064565..d5127e7 100755
> > --- a/scripts/contrib/bb-perf/bb-matrix.sh
> > +++ b/scripts/contrib/bb-perf/bb-matrix.sh
> > @@ -53,6 +53,10 @@ if [ $? -ne 0 ]; then
> >  	exit 1
> >  fi
> >  
> > +# Make sure neither of BB_NUMBER_THREADS, PARALLEL_MAKE and SSTATE_DIR are set
> > +# in local.conf
> > +sed -ri 's/^([[:space:]]*(BB_NUMBER_THREADS|PARALLEL_MAKE|SSTATE_DIR)[[:space:]]*\??=.*)/#\1/' conf/local.conf
> > +
> 
> Unless I'm mistaken, you are modifying the users local.conf?
> 
> We definitely should *not* be doing that. I would support documenting
> this as a requirement and even printing a warning if any of a set of
> variables are found in the bitbake environment.
> 
> Note that local.conf is not the only place where these could be set.
> 
> Richard, shouldn't the env setting override anything in local.conf?

No, it will override a ?= or ??= but not a =.

Cheers,

Richard