$ cd $DEV_ROOT/tmp/boost_1_48_0

$ ./bootstrap.sh --with-toolset=mingw
Building Boost.Build engine with toolset mingw... tools/build/v2/engine/bin.ntx86/b2
Unicode/ICU support for Boost.Regex?... not found.
Backing up existing Boost.Build configuration in project-config.jam.2
Generating Boost.Build configuration in project-config.jam...

Bootstrapping is done. To build, run:

    ./b2

To adjust configuration, edit 'project-config.jam'.
Further information:

   - Command line help:
     ./b2 --help

   - Getting started guide:
     http://www.boost.org/more/getting_started/unix-variants.html

   - Boost.Build documentation:
     http://www.boost.org/boost-build2/doc/html/index.html

$ mv project-config.jam project-config.jam_