db/cmdline.cpp means that the .a requires boost::program_options library at link time.

This wasn't the case for 1.2 and 1.3 and I can't see any (conceptual) reason for the client lib to need to include this file in the archive. Unless I'm missing osmething the CmdLine::store( int argc, char** argv) function isn't going to get called when the library is embedded.

(This change wasn't noted in the release notes on the website - but perhaps there is a more detailed list somewhere?)