Checkouts of subsets of the tree

We're moving from CVS and ClearCase to subversion for our fairly large Java development project. One of the things that we did with ClearCase was check in our customized JDK so that everyone had a consistent environment to build against. Since we had people developing on two platforms (win32 and linux), we needed to check in JDKs for both platforms. ClearCase allows us to load (checkout) just the JDK the developer needed saving both update time and client space.

I want to do this with svn. I've looked at both externals and vendor branches in the book, but I don't see the way to do this. Any pointers?

Thanks
-John

-- 
----------------------------------------------------------------
John Rousseau                               JRousseau@novell.com
Novell, Inc.                              Phone: +1 781 464 8377
404 Wyman Street                            Fax: +1 781 464 8100
Waltham, MA 02451                          http://www.novell.com
----------------------------------------------------------------
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@subversion.tigris.org
For additional commands, e-mail: users-help@subversion.tigris.org