You can refer here, Re: importing Wiced SDK into eclipse in linux.
No worries this has been discussed on the WiFi SDK, for WICED Smart SDK as well kindly follow the same steps..
NOTE : For 64 bit linux there are some issues that the test team has reported for WICED Smart SDK.
Also you would not be able to use the SmartDesigner feature with this. We should have a linux installer at the earliest.