There has come some new build guides, and now they are for OOo2(beta) :-)

Linux (x86) http://tools.openoffice.org/dev_docs/build_linux.html Solaris http://tools.openoffice.org/dev_docs/build_solaris.html DarwinPPC/MacOS X http://porting.openoffice.org/mac/build_680_X11.html Windows http://tools.openoffice.org/dev_docs/build_windows_tcsh.html

A good thing about the Windows guide is that it gives a more complete list about utilities that are needed...