Hello Volker, I met following problem when trying to build on my Power 5 box, OS is RedHat Enterprise Linux 5, bootstrapping JDK is also IBMSDK 7. /root/ppc-aix-port/depends/sdk7/bin/java -cp /root/ppc-aix-port/depends/sdk7/lib/tools.jar sun.rmi.rmic.Main -classpath "/root/ppc-aix-port/output_ppc-aix-port_dbg/../output_ppc-aix-port_dbg-debug/classes" \ -d /root/ppc-aix-port/output_ppc-aix-port_dbg/../output_ppc-aix-port_dbg-debug/classes \ -iiop -v1.2 \ -standardPackage \ javax.management.remote.rmi.RMIConnectionImpl -standardPackage is an invalid option or argument. The "-standardPackage" option does not seem to be supported, but I found this command passed in your build log, have you got any other changes to make this pass? Many thanks! Jonathan