title: Eclipse rcp build for all platforms (all-in-one)
body: <p>I'm trying to build my eclipse (3.6) RCP application for different platforms (linux, win32 and mac). For that I need three target platforms and I also have to build them on the platforms I want to build them for.
  So I get three different builds.</p>
  
  <p>Is it possible to build a win32 release on a linux machine (or similar configurations) and is it possible to merge all the builds into one single one (since the only thing that changes afaik is the launcher and the deltapacks)?</p>