The archive on the page of this port has too many files removed. You will get errors about missing files trying to compile the example.
Just unpack the archive over the plain source of Contiki OS 2.3 and then everything should work fine.
Now it is a time to mention the recent release of another port of Contiki OS (it is version 2.2.1, not the recent one). This port is running on the STM32 Primer development kit. Because both current versions of this development kit run CircleOS, an emb...
The ez430 RF2500 port of the Contiki OS was created as the entry to the MSP430 Design Contest. Currently the port allows to use one RF2500 board as a terminal and another RF2500 board as a sensor node. For further development your may check out the sou...