i got a little bit further by making a plt 99 rpm from svn. it seems that a file is missing from the cvs called RibbonPrimitive.cpp. scons: *** Source `libfluxus/src/RibbonPrimitive.cpp' not found, needed by target `libfluxus/src/RibbonPrimitive.o'. Stop. scons: building terminated because of errors. best, gabor