[boost] build of documentation broken for HEAD?

When I try to build the documentation from BOOST_ROOT/doc by invoking bjam I get: error: Unable to find file or target named error: 'object(file-target)@1153' error: referred from project at error: '/home/roland/projects/boost/HEAD/tools/quickbook' The same works for RC_134_0 What I am missing? My user-config.jam: using boostbook : /usr/share/xml/docbook/stylesheet/nwalsh : /usr/share/xml/docbook/schema/dtd/4.2 ; using xsltproc : /usr/bin/xsltproc ; using doxygen : /usr/bin/doxygen ; using fop : /usr/bin/fop : : /usr/lib/jvm/java-1.5.0-sun-1.5.0.08 ; Roland