boost book build failure

Using today's boost for the RC_1_34_0 branch, I'm getting
the attached 
failure when I try to build boost book on current linux as
per the 
directions here:

http://boost.org/doc/html/boostbook/getting/started.html


ie, the first part (setup_boostbook.sh) is fine and
everything is found 
and downloaded correctly. However, the make fails.

Is this a known (transient?) failure, or am I doing
something wrong?

Here are the exact build commands:

cd $boost_root
./tools/boostbook/setup_boostbook.sh
cd ./doc
(bjam command as attached, as is output.)


best,
-benjamin