Hi, I have found some linking issues (see bellow) with Boost.Test ubuntu gcc-4.4.6,gcc-4.6.1.0(c++0x),intel-12.1.3.0(c++0x). I'm linking with boost_unit_test_framework. Should other libraries be added? Best, Vicente P.S. This worked well before. time bjam --build-dir=/tmp/bin.v2 toolset=gcc-4.4.6,gcc-4.6.1.0x,intel-12.1.3.0x -q -d2 gcc.link /tmp/bin.v2/boost/bin.v2/libs/thread/test/test_thread.test/gcc-4.4.6/debug/threading-multi/test_thread "g++-4.4" -Wl,-R -Wl,"/tmp/bin.v2/boost/bin.v2/libs/chrono/build/gcc-4.4.6/debug/threading-multi" -Wl,-R -Wl,"/tmp/bin.v2/boost/bin.v2/libs/system/build/gcc-4.4.6/debug/threading-multi" -Wl,-R -Wl,"/tmp/bin.v2/boost/bin.v2/libs/thread/build/gcc-4.4.6/debug/threading-multi" -Wl,-rpath-link -Wl,"/tmp/bin.v2/boost/bin.v2/libs/chrono/build/gcc-4.4.6/debug/threading-multi" -Wl,-rpath-link -Wl,"/tmp/bin.v2/boost/bin.v2/libs/system/build/gcc-4.4.6/debug/threading-multi" -Wl,-rpath-link -Wl,"/tmp/bin.v2/boost/bin.v2/libs/thread/build/gcc-4.4.6/debug/threading-multi" -o "/tmp/bin.v2/boost/bin.v2/libs/thread/test/test_thread.test/gcc-4.4.6/debug/threading-multi/test_thread" -Wl,--start-group "/tmp/bin.v2/boost/bin.v2/libs/thread/test/test_thread.test/gcc-4.4.6/debug/threading-multi/test_thread.o" "/tmp/bin.v2/boost/bin.v2/libs/chrono/build/gcc-4.4.6/debug/threading-multi/libboost_chrono.so.1.52.0" "/tmp/bin.v2/boost/bin.v2/libs/test/build/gcc-4.4.6/debug/link-static/threading-multi/libboost_unit_test_framework.a" "/tmp/bin.v2/boost/bin.v2/libs/thread/build/gcc-4.4.6/debug/threading-multi/libboost_thread.so.1.52.0" "/tmp/bin.v2/boost/bin.v2/libs/system/build/gcc-4.4.6/debug/threading-multi/libboost_system.so.1.52.0" -Wl,-Bstatic -Wl,-Bdynamic -lrt -Wl,--end-group -g -pthread /tmp/bin.v2/boost/bin.v2/libs/test/build/gcc-4.4.6/debug/link-static/threading-multi/libboost_unit_test_framework.a(unit_test_main.o): In function `boost::unit_test::unit_test_main(boost::unit_test::test_suite* (*)(int, char**), int, char**)': /mnt/boost/trunk/libs/thread/test/../../../boost/test/impl/unit_test_main.ipp:92: undefined reference to `boost::unit_test::traverse_test_tree(unsigned long, boost::unit_test::test_tree_visitor&, bool)' /tmp/bin.v2/boost/bin.v2/libs/test/build/gcc-4.4.6/debug/link-static/threading-multi/libboost_unit_test_framework.a(framework.o): In function `boost::unit_test::framework::impl::apply_filters(unsigned long)': /mnt/boost/trunk/libs/thread/test/../../../boost/test/impl/framework.ipp:506: undefined reference to `boost::unit_test::traverse_test_tree(unsigned long, boost::unit_test::test_tree_visitor&, bool)' /mnt/boost/trunk/libs/thread/test/../../../boost/test/impl/framework.ipp:533: undefined reference to `boost::unit_test::traverse_test_tree(unsigned long, boost::unit_test::test_tree_visitor&, bool)' /mnt/boost/trunk/libs/thread/test/../../../boost/test/impl/framework.ipp:537: undefined reference to `boost::unit_test::traverse_test_tree(unsigned long, boost::unit_test::test_tree_visitor&, bool)' /mnt/boost/trunk/libs/thread/test/../../../boost/test/impl/framework.ipp:548: undefined reference to `boost::unit_test::traverse_test_tree(unsigned long, boost::unit_test::test_tree_visitor&, bool)' /tmp/bin.v2/boost/bin.v2/libs/test/build/gcc-4.4.6/debug/link-static/threading-multi/libboost_unit_test_framework.a(framework.o):/mnt/boost/trunk/libs/thread/test/../../../boost/test/impl/framework.ipp:603: more undefined references to `boost::unit_test::traverse_test_tree(unsigned long, boost::unit_test::test_tree_visitor&, bool)' follow /tmp/bin.v2/boost/bin.v2/libs/test/build/gcc-4.4.6/debug/link-static/threading-multi/libboost_unit_test_framework.a(framework.o): In function `visit': /mnt/boost/trunk/libs/thread/test/../../../boost/test/impl/framework.ipp:686: undefined reference to `boost::unit_test::decorator::for_test_unit::apply(boost::unit_test::test_unit&)' /tmp/bin.v2/boost/bin.v2/libs/test/build/gcc-4.4.6/debug/link-static/threading-multi/libboost_unit_test_framework.a(framework.o): In function `boost::unit_test::framework::init(boost::unit_test::test_suite* (*)(int, char**), int, char**)': /mnt/boost/trunk/libs/thread/test/../../../boost/test/impl/framework.ipp:691: undefined reference to `boost::unit_test::traverse_test_tree(unsigned long, boost::unit_test::test_tree_visitor&, bool)' /mnt/boost/trunk/libs/thread/test/../../../boost/test/impl/framework.ipp:698: undefined reference to `boost::unit_test::traverse_test_tree(unsigned long, boost::unit_test::test_tree_visitor&, bool)' /tmp/bin.v2/boost/bin.v2/libs/test/build/gcc-4.4.6/debug/link-static/threading-multi/libboost_unit_test_framework.a(framework.o): In function `boost::unit_test::framework::run(unsigned long, bool)': /mnt/boost/trunk/libs/thread/test/../../../boost/test/impl/framework.ipp:1008: undefined reference to `boost::unit_test::traverse_test_tree(unsigned long, boost::unit_test::test_tree_visitor&, bool)' /mnt/boost/trunk/libs/thread/test/../../../boost/test/impl/framework.ipp:1045: undefined reference to `boost::unit_test::traverse_test_tree(unsigned long, boost::unit_test::test_tree_visitor&, bool)' /tmp/bin.v2/boost/bin.v2/libs/test/build/gcc-4.4.6/debug/link-static/threading-multi/libboost_unit_test_framework.a(framework.o): In function `boost::unit_test::ut_detail::label_filter::visit(boost::unit_test::test_unit const&)': /mnt/boost/trunk/libs/thread/test/../../../boost/test/impl/framework.ipp:217: undefined reference to `boost::unit_test::test_unit::has_label(boost::unit_test::basic_cstring<char const>) const' /tmp/bin.v2/boost/bin.v2/libs/test/build/gcc-4.4.6/debug/link-static/threading-multi/libboost_unit_test_framework.a(framework.o): In function `boost::unit_test::ut_detail::remove_disabled::visit(boost::unit_test::test_unit const&)': /mnt/boost/trunk/libs/thread/test/../../../boost/test/impl/framework.ipp:300: undefined reference to `boost::unit_test::traverse_test_tree(unsigned long, boost::unit_test::test_tree_visitor&, bool)' /tmp/bin.v2/boost/bin.v2/libs/test/build/gcc-4.4.6/debug/link-static/threading-multi/libboost_unit_test_framework.a(progress_monitor.o): In function `boost::unit_test::traverse_test_tree(boost::unit_test::test_unit const&, boost::unit_test::test_tree_visitor&, bool)': /mnt/boost/trunk/libs/thread/test/../../../boost/test/tree/traverse.hpp:46: undefined reference to `boost::unit_test::traverse_test_tree(boost::unit_test::test_case const&, boost::unit_test::test_tree_visitor&, bool)' /mnt/boost/trunk/libs/thread/test/../../../boost/test/tree/traverse.hpp:48: undefined reference to `boost::unit_test::traverse_test_tree(boost::unit_test::test_suite const&, boost::unit_test::test_tree_visitor&, bool)' /tmp/bin.v2/boost/bin.v2/libs/test/build/gcc-4.4.6/debug/link-static/threading-multi/libboost_unit_test_framework.a(results_reporter.o): In function `boost::unit_test::results_reporter::make_report(boost::unit_test::report_level, unsigned long)': /mnt/boost/trunk/libs/thread/test/../../../boost/test/impl/results_reporter.ipp:181: undefined reference to `boost::unit_test::traverse_test_tree(unsigned long, boost::unit_test::test_tree_visitor&, bool)' collect2: ld returned 1 exit status ...failed gcc.link /tmp/bin.v2/boost/bin.v2/libs/thread/test/test_thread.test/gcc-4.4.6/debug/threading-multi/test_thread... ...failed updating 1 target...