Is the following still a proper way to write a unit test for a Boost library component? #define BOOST_INCLUDE_MAIN #include <boost/test/test_tools.hpp> int test_main(int, char*[]) { // TODO Some testing here... return 0; } I can't get the above code compiling on the latest Borland/CodeGear compiler (Embarcadero C++ 6.21), installed by c++builder_2010_3615_win_esd.zip, downloaded from www.embarcadero.com/downloads Even though I already patched boost/smart_ptr (ticket #4067) and boost/exception (ticket #4068). I just do: bjam toolset=borland Which tries to compile <boost/test/utils/runtime/cla/dual_name_parameter.hpp> apparently, and it yields an error at line 43: template<typename Modifier> void accept_modifier( Modifier const& m ) { if( m.has( prefix ) ) { set_prefix( m[prefix] ); // line 43, "Error E2094"! ... The complete error message is down here. Interestingly, the message says that operator+ is missing (while I don't see a need for operator+ in this context). Any help is appreciated! Kind regards, Niels ------------------------------------------------------------ CodeGear/Embarcadero C++ 6.21 output: Error E2094 ..\..\..\..\boost/test/utils/runtime/cla/dual_name_parameter.hpp 43: 'operator+' not implemented in type 'nfp::nfp_detail::named_parameter_combine<nfp::named_parameter<const unit_test::const_string,description_t,const unit_test::const_string &>,nfp::nfp_detail::named_parameter_combine<nfp::named_parameter<bool,optional_t,bool>,nfp::nfp_detail::named_parameter_combine<nfp::named_parameter<bool,guess_name_t,bool>,nfp::nfp_detail::named_parameter_combine<nfp::named_parameter<const unit_test::const_string,separator_t,const unit_test::const_string &>,nfp::named_parameter<const unit_test::const_string,prefix_t,const unit_test::const_string &> > > > >' for arguments of type 'nfp::typed_keyword<unit_test::const_string,prefix_t,0>' in function void dual_name_policy::accept_modifier<nfp::nfp_detail::named_parameter_combine<nfp::named_parameter<const unit_test::const_string,description_t,const unit_test::const_string &>,nfp::nfp_detail::named_parameter_combine<nfp::named_parameter<bool,optional_t,bool>,nfp::nfp_detail::named_parameter_combine<nfp::named_parameter<bool,guess_name_t,bool>,nfp::nfp_detail::named_parameter_combine<nfp::named_parameter<const unit_test::const_string,separator_t,const unit_test::const_string &>,nfp::named_parameter<const unit_test::const_string,prefix_t,const unit_test::const_string &> > > > > >(const nfp::nfp_detail::named_parameter_combine<nfp::named_parameter<const unit_test::const_string,description_t,const unit_test::const_string &>,nfp::nfp_detail::named_parameter_combine<nfp::named_parameter<bool,optional_t,bool>,nfp::nfp_detail::named_parameter_combine<nfp::named_parameter<bool,guess_name_t,bool>,nfp::nfp_detail::named_parameter_combine<nfp::named_parameter<const unit_test::const_string,separator_t,const unit_test::const_string &>,nfp::named_parameter<const unit_test::const_string,prefix_t,const unit_test::const_string &> > > > > &)