Hello, I'm trying to just do the basic example of boost.test unit testing. I'm getting compilation errors when I include the headers. =============== test.cpp ==================== #define BOOST_TEST_MODULE MyTest #include <boost/test/unit_test.hpp> /* #include <boost/test/unit_test_log.hpp> #include <boost/test/unit_test_log_formatter.hpp> */ int add( int i, int j ) { return i+j; } /* commented out BOOST_AUTO_TEST_CASE( my_test ) { // seven ways to detect and report the same error: BOOST_CHECK( add( 2,2 ) == 4 ); // #1 continues on error BOOST_REQUIRE( add( 2,2 ) == 4 ); // #2 throws on error if( add( 2,2 ) != 4 ) BOOST_ERROR( "Ouch..." ); // #3 continues on error if( add( 2,2 ) != 4 ) BOOST_FAIL( "Ouch..." ); // #4 throws on error if( add( 2,2 ) != 4 ) throw "Ouch..."; // #5 throws on error BOOST_CHECK_MESSAGE( add( 2,2 ) == 4, // #6 continues on error "add(..) result: " << add( 2,2 ) ); BOOST_CHECK_EQUAL( add( 2,2 ), 4 ); // #7 continues on error } */ int main() { return 0; }; =============== test.cpp ==================== To compile I'm doing (I have to add the location of boost to the include path with -I): g++ -I/Users/zara/Programming/polyneuron/lib/boost_1_35_0/ test.cpp The only output is: Undefined symbols: "vtable for boost::unit_test::unit_test_log_t", referenced from: __ZTVN5boost9unit_test15unit_test_log_tE$non_lazy_ptr in ccDfKOkF.o "boost::unit_test::framework::master_test_suite()", referenced from: init_unit_test_suite(int, char**)in ccDfKOkF.o ld: symbol(s) not found collect2: ld returned 1 exit status Which is a virtual function issue ... but why should I be having this in a library I'm using? I shouldn't have to touch the lib code ... what's up? Do I need to implement some virtual function/class? With the code uncommented I get many more errors - and this is the example code given in the docs ... Help is much appreciated. - trevor