[Soot-list] Build Eclipse-Plugin

[wii]

Hi list,

I made some changes on the plugin for eclipse.
But I encounter some problems with its build. And I'd like to ask for 
any help, if you have already faced the same problem:

Although the external eclipse packages are already declared on the 
plugin.xml,
I get errors like:

$ant eclipse-plugin
     [javac] 
eclipse/ca.mcgill.sable.soot/src/ca/mcgill/sable/graph/GraphEditor.java:27: 
error: package org.eclipse.gef.editparts does not exist
     [javac] 
eclipse/ca.mcgill.sable.soot/src/ca/mcgill/sable/graph/GraphEditor.java:24: 
error: package org.eclipse.gef does not exist
     [javac] 
eclipse/ca.mcgill.sable.soot/src/ca/mcgill/sable/graph/GraphEditor.java:36: 
error: cannot find symbol import org.eclipse.core.runtime.IProgressMonitor;


I tried even to add these packages manually on the plugin.xml, but 
errors still remain.
Do you have idea for this problem??

With the chance, I'd like to ask - as it's not clear enough to me- how 
exactly I can use the eclipse-plugin.jar after its build.
As I see in the '/usr/share/eclipse/plugins ... / '  the downloaded soot 
plugin uses only the jar of the classes. Is the eclipse-plugin.jar useful?



Thank you very much,

Wii