Boost.Build automatically builds Quickbook when required to build the documentation, but as it takes a little while to build you might prefer to build it in advance. To do this, in the command line type (replacing $BOOST_ROOT with the root directory of boost):

cd $BOOST_ROOT/tools/quickbook
b2 dist-bin

Or for windows:

cd $BOOST_ROOT\\tools\\quickbook
b2 dist-bin

Change using quickbook in user-config.jam to (replacing $BOOST_ROOT with the root directory of boost, as before):

using quickbook : $BOOST_ROOT/dist/bin/quickbook ;

Windows:

using quickbook : $BOOST_ROOT\\dist\\bin\\quickbook ;