Am I missing something when I get undefined references to main using boost 1.34.1. Here is a minimal example #include <iostream> #include <boost/test/unit_test.hpp> void my_test_function() { std::cout << "hi there" << std::endl; } boost::unit_test::test_suite* init_unit_test_suite( int , char*[] ) { boost::unit_test::test_suite* test = BOOST_TEST_SUITE( "Master test suite" ); test->add( BOOST_TEST_CASE( &my_test_function ) ); return test; } This is copied off of the main page. Here is the compilation line g++ test.cpp -o test -lboost_unit_test_framework-gcc41 With gcc version 4.1.2 Here is the error message: /usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib/crt1.o: In function `_start': (.text+0x18): undefined reference to `main' collect2: ld returned 1 exit status Any insight? Chris Miceli