It seems that I am unable to build/use boost threads when compiling with gcc-4.2.0 on windows. I get errors: libs\thread\src\win32\thread.cpp:147: error: 'heap_delete' is not a member of 'boost::detail' and other (see below). Can someone advise me as to how I can get boost_thread to build under gcc-4.2.0/32-bit XP machine wth boost 1.35.0. Thanks, Mat $ bjam -j2 debug gcc-4.2.0 --without-mpi --without-python threadapi=win32 libs/thread/build//boost_thread warning: Graph library does not contain optional GraphML reader. note: to enable GraphML support, set EXPAT_INCLUDE and EXPAT_LIBPATH to the note: directories containing the Expat headers and libraries, respectively. Building Boost.Regex with the optional Unicode/ICU support disabled. Please refer to the Boost.Regex documentation for more information (don't panic: this is a strictly optional feature). ...patience... ...found 676 targets... ...updating 3 targets... gcc.compile.c++ bin.v2\libs\thread\build\gcc-4.2.0\debug\threading-multi\thread.o libs\thread\src\win32\thread.cpp: In function 'void boost::<unnamed>::run_thread_exit_callbacks()': libs\thread\src\win32\thread.cpp:147: error: 'heap_delete' is not a member of 'boost::detail' libs\thread\src\win32\thread.cpp:149: error: 'heap_delete' is not a member of 'boost::detail' libs\thread\src\win32\thread.cpp:159: error: 'heap_delete' is not a member of 'boost::detail' libs\thread\src\win32\thread.cpp: At global scope: libs\thread\src\win32\thread.cpp:170: error: no 'unsigned int boost::thread::thread_start_function(void*)' member function declared in class 'boost::thread' libs\thread\src\win32\thread.cpp: In member function 'void boost::thread::start_thread()': libs\thread\src\win32\thread.cpp:194: error: ISO C++ forbids taking the address of an unqualified or parenthesized non-static member function to form a pointer to member function. Say '&boost::thread::thread_start_function' libs\thread\src\win32\thread.cpp:194: error: 'struct boost::detail::thread_data_base' has no member named 'id' libs\thread\src\win32\thread.cpp:194: error: '_beginthreadex' was not declared in this scope libs\thread\src\win32\thread.cpp:199: error: 'intrusive_ptr_add_ref' was not declared in this scope libs\thread\src\win32\thread.cpp:200: error: 'boost::detail::win32' has not been declared libs\thread\src\win32\thread.cpp: In constructor 'boost::<unnamed>::externally_launched_thread::externally_launched_thread()': libs\thread\src\win32\thread.cpp:215: error: 'count' was not declared in this scope libs\thread\src\win32\thread.cpp:216: error: 'interruption_enabled' was not declared in this scope libs\thread\src\win32\thread.cpp: In function 'void boost::<unnamed>::make_external_thread_data()': libs\thread\src\win32\thread.cpp:225: error: 'heap_new' is not a member of 'boost::detail' libs\thread\src\win32\thread.cpp:225: error: expected primary-expression before '>' token libs\thread\src\win32\thread.cpp:225: error: expected primary-expression before ')' token libs\thread\src\win32\thread.cpp: In constructor 'boost::thread::thread(boost::detail::thread_move_t<boost::thread>)': libs\thread\src\win32\thread.cpp:251: error: no match for 'operator=' in 'x. boost::detail::thread_move_t<T>::operator-> [with T = boost::thread]()->boost::thread::thread_info = 0' ./boost/shared_ptr.hpp:194: note: candidates are: boost::shared_ptr<T>& boost::shared_ptr<T>::operator=(const boost::shared_ptr<T>&) [with T = boost::detail::thread_data_base] libs\thread\src\win32\thread.cpp: In member function 'void boost::thread::join()': libs\thread\src\win32\thread.cpp:292: error: 'interruptible_wait' is not a member of 'boost::this_thread' libs\thread\src\win32\thread.cpp:292: error: 'boost::detail::timeout' has not been declared libs\thread\src\win32\thread.cpp:293: error: 'release_handle' was not declared in this scope libs\thread\src\win32\thread.cpp: In member function 'bool boost::thread::timed_join(const boost::system_time&)': libs\thread\src\win32\thread.cpp:302: error: 'interruptible_wait' is not a member of 'boost::this_thread' libs\thread\src\win32\thread.cpp:306: error: 'release_handle' was not declared in this scope libs\thread\src\win32\thread.cpp: In member function 'void boost::thread::detach()': libs\thread\src\win32\thread.cpp:313: error: 'release_handle' was not declared in this scope libs\thread\src\win32\thread.cpp: At global scope: libs\thread\src\win32\thread.cpp:316: error: no 'void boost::thread::release_handle()' member function declared in class 'boost::thread' libs\thread\src\win32\thread.cpp: In member function 'void boost::thread::release_handle()': libs\thread\src\win32\thread.cpp:319: error: no match for 'operator=' in '((boost::thread*)this)->boost::thread::thread_info = 0' ./boost/shared_ptr.hpp:194: note: candidates are: boost::shared_ptr<T>& boost::shared_ptr<T>::operator=(const boost::shared_ptr<T>&) [with T = boost::detail::thread_data_base] libs\thread\src\win32\thread.cpp: In member function 'void boost::thread::interrupt()': libs\thread\src\win32\thread.cpp:327: error: 'struct boost::detail::thread_data_base' has no member named 'interrupt' libs\thread\src\win32\thread.cpp: In member function 'bool boost::thread::interruption_requested() const': libs\thread\src\win32\thread.cpp:334: error: 'boost::detail::win32' has not been declared libs\thread\src\win32\thread.cpp:334: error: 'struct boost::detail::thread_data_base' has no member named 'interruption_handle' libs\thread\src\win32\thread.cpp: In static member function 'static unsigned int boost::thread::hardware_concurrency()': libs\thread\src\win32\thread.cpp:339: warning: missing braces around initializer for '_SYSTEM_INFO::<anonymous union>' libs\thread\src\win32\thread.cpp: At global scope: libs\thread\src\win32\thread.cpp:344: error: 'native_handle_type' in class 'boost::thread' does not name a type libs\thread\src\win32\thread.cpp:360: error: 'timeout' is not a member of 'boost::detail' libs\thread\src\win32\thread.cpp:361: error: expected ',' or ';' before '{' token libs\thread\src\win32\thread.cpp:628: error: expected `}' at end of input libs\thread\src\win32\thread.cpp:628: error: expected `}' at end of input libs\thread\src\win32\thread.cpp:628: error: expected `}' at end of input ./boost/detail/shared_count.hpp: In constructor 'boost::detail::shared_count::shared_count(P, D) [with P = boost::detail::thread_data_base*, D = bool]': ./boost/shared_ptr.hpp:177: instantiated from 'boost::shared_ptr<T>::shared_ptr(Y*, D) [with Y = boost::detail::thread_data_base, D = bool, T = boost::detail::thread_data_base]' libs\thread\src\win32\thread.cpp:135: instantiated from here ./boost/detail/shared_count.hpp:115: error: 'd' cannot be used as a function ./boost/detail/sp_counted_impl.hpp: In member function 'void boost::detail::sp_counted_impl_pd<P, D>::dispose() [with P = boost::detail::thread_data_base*, D = bool]': libs\thread\src\win32\thread.cpp:627: instantiated from here ./boost/detail/sp_counted_impl.hpp:144: error: '((boost::detail::sp_counted_impl_pd<boost::detail::thread_data_base*, bool>*)this)->boost::detail::sp_counted_impl_pd<boost::detail::thread_data_base*, bool>::del' cannot be used as a function "/opt/gcc-4.2.0/bin/g++.exe" -ftemplate-depth-128 -O0 -fno-inline -Wall -g -mthreads -DBOOST_ALL_NO_LIB=1 -DBOOST_THREAD_BUILD_DLL=1 -I"." -c -o "bin.v2\libs\thread\build\gcc-4.2.0\debug\threading-multi\thread.o" "libs\thread\src\win32\thread.cpp" ...failed gcc.compile.c++ bin.v2\libs\thread\build\gcc-4.2.0\debug\threading-multi\thread.o... ...skipped <pbin.v2\libs\thread\build\gcc-4.2.0\debug\threading-multi>boost_thread-gcc42-mt-d-1_35.lib for lack of <pbin.v2\libs\thread\build\gcc-4.2.0\debug\threading-multi>thread.o... ...skipped <pbin.v2\libs\thread\build\gcc-4.2.0\debug\threading-multi>boost_thread-gcc42-mt-d-1_35.dll for lack of <pbin.v2\libs\thread\build\gcc-4.2.0\debug\threading-multi>thread.o... ...failed updating 1 target... ...skipped 2 targets...