The equinox layering team has published
a new build which can be installed on top of the Eclipse 3.1 M4 build (I20041216).
For more details see http://dev.eclipse.org/viewcvs/indextech.cgi/~checkout~/equinox-home/downloads.html
Note that you must first install the
Eclispe 3.1 M4 build. The current Eclipse 3.1 M4 candidate build
is I20041216. If you find any issues with the build please open bugs
against the Equinox product at https://bugs.eclipse.org/. If you
have any questions about the layering code/build please post to this mailing