[boost] Cannot compile the debug version.

Dear All, I wouldn't be able to compile the debug version of boost_1.360 (cannot find *-gd* under boost/lib). I tried following bjam arguments: bjam ^ --prefix=c:\boost install ^ --build-dir=c:\boost ^ --sBUILD=debug ^ --toolset=msvc ^ --threading=multi ^ --link=static and bjam ^ --prefix=c:\boost install ^ --build-dir=c:\boost ^ --sBUILD=debug release ^ --toolset=msvc ^ and it still doesn't build the debug version. My environment: ms vista 32 ms vc9 sp1 boost 1.360 bjam 03.1.17 Can someone tell me how to get the debug version? Thanks very much. John