Failed to build single threaded libraries using option 'threading=single'

[Frank W. <boost@…>]

Bjam fails to build boost single threaded libs (boost1.47.0, host: Win7 64bit, VS2010/MSVC10.0) when specifying 'threading=single' and 'runtime-link=shared' at the same time but builds multi-threaded boost libs with shared runtime instead!

b2 --stagedir=stage\x86 address-model=32 threading=single runtime-link=shared stage

Just as a note: If options 'threading=single' and 'runtime-link=static' are used the single-threaded libs with statically linked runtime are built as specified.