Thanx for the reply (yours is the first anyone's even acknowledged my message) but I have eliminated this as a possibility by completely rebuilding the entire machine's configuration. The problem manifests itself as redefinitions and different sizes for various object code for QT methods when running libtool during the build. thanx & later, Ben Scherrey Jonathan Bartlett wrote: > > Not sure, but could this have to do with QT/KDE being C++? Remember that > the new GCC does not maintain binary compatibility with C++ libraries > compiled with other versions. Therefore, if you compiled any of it with > egcs or gcc 2.8 then you would have problems. > > Jon