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From J├╝rgen Schmidt <>
Subject Re: Removing output trees during the bootstrap step?
Date Thu, 23 Feb 2012 14:14:48 GMT
On 2/23/12 2:49 PM, Herbert Duerr wrote:
> For a long time the old build system had the problem that build
> dependencies between modules had to be set manually and this was quite
> fragile, of course. It can result in obvious trouble like compile or
> link failures and what is more troubling are subtle problems, like
> struct changes going unnoticed by a source file depending on it. The
> result are hard to debug and "interesting" artifacts.
> The gbuild process has many benefits one of which is its automatic
> handling of dependencies. Volunteers are very welcome to migrate the
> remaining modules. In the meantime we have to deal with the dual
> gbuild/oldbuild process which complicates the dependency problem more.
> The manually set dependencies of the old build system where also not
> perfectly debugged which showed when the build order was changed, e.g.
> by doing a highly parallel builds on beefy buildbots. Fixing all to the
> the old-build dependencies would help too, volunteers are very welcome.
> Looking for a solution that works reliably for the very near future I'm
> considering to add a "clean output trees" to the bootstrap step. It
> would make sure that all is rebuilt when the configuration gets changed.
> Of course you could prevent that (by setting an environment variable
> DO_KEEP_OUTPUT_TREES) but the default should be to go the "better safe
> than sorry" way.
> --- a/main/bootstrap.1
> +++ b/main/bootstrap.1
> @@ -22,3 +22,11 @@ if [ "$DO_FETCH_TARBALLS" = "yes" ]; then
> $SRC_ROOT/ $SRC_ROOT/ooo.lst
> fi
> +# remove all output trees
> +# TODO: this is no longer needed when all dependencies are perfect
> +# or when the switch to the gbuild system is complete
> +if [[ -n "$DO_KEEP_OUTPUT_TREES" && -n $INPATH && -n $OUTDIR ]]; then
> + echo Removing the output trees
> + rm -rf "*/${INPATH}" "${OUTDIR}"
> +fi
> +

do you think this is related to some of our problems with the buildbots?

We should definitely ensure that our buildbots build the office from 
scratch, at least until we have more reliable and working dependencies.

Can we ensure that the build bits build from scratch? With or without 
this patch?


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