After a whole lot of hours spent on trying to sort out how Eclipse and AVR fit together, I finally managed to put together some sort of environment that works for me. I compiled the Arduino Core as well as some of the libraries and put them together in the Eclipse workbench.
I attached a zip file with three Eclipse project directories
AdruinoCores - How to compile the core library, ready to be linked in
ArduinoLibraries - How to compile the libraries ready to be linked in
Template - a Typical project with the Core and some libraries linked in
The project files have all the settings that you need to make the lot work together. You will have to fix the actual paths to suit your environment.
I hope that this will help some other newbies to get started with the Eclipse setup.
ArduinoLibraries.zip (441 KB)