rich@rich-desktop:~/boost_1_36_0/libs/thread/example$ bjam --toolset=gcc-arm
warning: Graph library does not contain optional GraphML reader.
note: to enable GraphML support, set EXPAT_INCLUDE and EXPAT_LIBPATH to the
note: directories containing the Expat headers and libraries, respectively.
warning: skipping optional Message Passing Interface (MPI) library.
note: to enable MPI support, add "using mpi ;" to user-config.jam.
note: to suppress this message, pass "--without-mpi" to bjam.
note: otherwise, you can safely ignore this message.
Building Boost.Regex with the optional Unicode/ICU support disabled.
Please refer to the Boost.Regex documentation for more information
(don't panic: this is a strictly optional feature).
...patience...
...found 764 targets...
...updating 11 targets...
gcc.link ../../../bin.v2/libs/thread/example/gcc-arm/debug/threading-multi/monitor
../../../bin.v2/libs/thread/build/gcc-arm/debug/threading-multi/libboost_thread-gcc-mt-d-1_36.so.1.36.0: undefined reference to `get_nprocs'
../../../bin.v2/libs/thread/build/gcc-arm/debug/threading-multi/libboost_thread-gcc-mt-d-1_36.so.1.36.0: undefined reference to `__sync_add_and_fetch_4'
collect2: ld returned 1 exit status

-Rich