need help: clean build of master does not run

After a ./g pull -r and a clean build of master, both my machines instantly produce an error when I 
try to run LibreOffice:
on one machine (openSUSE 11.4):
warn:desktop:22640:1:/home/w.donkers/git/libo/desktop/source/app/app.cxx:702: UNO Exception: 
InvalidRegistryException: 
file:///home/w.donkers/git/libo/solver/unxlngi6/installation/opt/program/../share/extensions/script-provider-for-python/components.rdb:
 duplicate <implementation name="org.openoffice.pyuno.LanguageScriptProviderForPython">
terminate called after throwing an instance of 'com::sun::star::uno::DeploymentException' "
and on the other (openSUSE 12.1):
warn:desktop:26330:1:/home/winfried/git/libo/desktop/source/app/app.cxx:702: UNO Exception: 
InvalidRegistryException: 
file:///home/winfried/git/libo/solver/unxlngi6/installation/opt/program/../share/extensions/presenter-screen/components.rdb:
 duplicate <implementation name="com.sun.star.comp.Draw.framework.PresenterScreenJob">
terminate called after throwing an instance of 'com::sun::star::uno::DeploymentException'

My autogen.sh looks like this (No of cpus/jobs depending on machine)
./autogen.sh --with-max-jobs=1/6 --with-num-cpus=1/6 --without-junit --disable-mozilla 
--disable-binfilter --disable-build-l10n --enable-dbgutil


What should I do to to solve this?

Winfried