I updated and rebuild kdelibs, but i get following error building kdepimlibs

[ 27%] Building CXX object kcal/CMakeFiles/kcal.dir/icalformatimpl.o
/home/kde-devel/kdepimlibs/kcal/icalformatimpl.cpp: In static member
function 'static KDateTime
KCal::ICalFormatImpl::readICalDateTime(icalproperty*, const
icaltimetype&, KCal::ICalTimeZones*, bool)':
/home/kde-devel/kdepimlibs/kcal/icalformatimpl.cpp:1875: error:
'KSystemTimeZones' has not been declared
make[2]: *** [kcal/CMakeFiles/kcal.dir/icalformatimpl.o] Error 1
make[1]: *** [kcal/CMakeFiles/kcal.dir/all] Error 2
make: *** [all] Error 2

Building kdebase fails as well, error: KSystemTimeZones has not been declared

I'm using KDE trunk. Any help ?
 
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