This is gcc-3.4 (cygwin). In file included from C:\cygwin\home\ericne\boost\org\trunk\libs\test\src\execution_monitor.cpp:16: ../../boost/test/impl/execution_monitor.ipp: In function `void boost::detail::execution_monitor_jumping_signal_handler(int, siginfo_t*, void*)': ../../boost/test/impl/execution_monitor.ipp:635: error: expected id-expression before "__extension__" ../../boost/test/impl/execution_monitor.ipp:635: error: expected `;' before "__extension__" ../../boost/test/impl/execution_monitor.ipp:635: error: expected primary-expression before ')' token ../../boost/test/impl/execution_monitor.ipp:635: error: expected `;' before ')' token I'm fully sync'ed up to svn head. We seem to be having a lot of problems with Boost.Test lately. This is really bad. Should we revert Boost.Test to something that works? -- Eric Niebler Boost Consulting www.boost-consulting.com