Set Eclipse up for GWT development

These instructions work for Eclipse 3.8 and 4.2

1. Download a GWT SDK and extract it.
2. Open Eclipse, go to Help -> Install New Software...
3. "Work with" http://dl.google.com/eclipse/plugin/4.2
4. Select "Google Plugin for Eclipse" and click Next, Next, accept the license, Finish. Confirm that you want to install when asked.
5. Restart Eclipse.
6. Go to Window -> Preferences -> Google -> Web Toolkit
7. Click Add... and select the extracted GWT SDK. Click OK.

Now you can build and run GWT apps.