Boost is useful but quite large. Is it a good idea to split the package, may be something like this: The frequently used libraries, such as: smart_ptr, regex, and all other TR1 are packaged as "boost". Other less frequently used, such as: wave, spirit, xpressive, etc.. are packaged as "boost++" or "boostx". Sorry for my poor English. I'm not a native English speaker. -_- Regards, Taworn T.