[Boost-build] How to use site-config.jam with bjam milestone 11

From: Jeffrey Holle (jeffreyholle_at_[hidden])
Date: 2007-06-29 19:57:41

My bjam on linux reports its:
   Boost.Build V2 (Milestone 11)
   Boost.Jam 03.1.15

I am failing to utilize information added to site-config.jam.

 From previous understanding, I added to my site-config.jam file:
   import project ;
   project.initialize $(__name__) ;
   project site-config ;
   lib expat : : <file>/usr/local/lib/libexpat.so ;
   lib bgl-viz : : <variant>debug 
<file>/home/jholle/boost_CVS/boost/stage/lib/libboost_graph-gcc41-d-1_35.so 
;
lib bgl-viz : : <variant>release 
<file>/home/jholle/boost_CVS/boost/stage/lib/libboost_graph-gcc41.so ;

In my project Jamfile, I attempt to refer to bgl-viz with 
//site-config/bgl-viz

The doesn't work, bjam reports it isn't defined.

I attempted:
   dumping //site-config/ in my jamfile.
   removing all combinations of "header" statements in my site-config.jam.

Nothing seems to work, so how can I use the site-config.jam file, or its 
alternative?