Hi, I am facing problems building boost 1.33.1 on my MacBook Pro mac OS X 10.4.9. I have attached the errors below. Any help regarding this would be highly appreciated. Thanks, Ashima ./tools/build/jam_src/bin.macosxx86/bjam -sPYTHON_ROOT=/System/Library/Frameworks/Python.framework/Versions/2.3 -sPYTHON_VERSION=2.3 -sTOOLS=darwin Building Boost.Regex with the optional Unicode/ICU support disabled. Please refer to the Boost.Regex documentation for more information (and if you don't know what ICU is then you probably don't need it). ...found 9834 targets... ...updating 6 targets... darwin-Link-DyLib-action bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/darwin/debug/shared-linkable-true/libboost_prg_exec_monitor-d-1_33_1.dylib ld: Undefined symbols: __Z8cpp_mainiPPc /usr/bin/libtool: internal link edit command failed DYLD_LIBRARY_PATH=bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/darwin/debug/shared-linkable-true export DYLD_LIBRARY_PATH ld -dynamic -m -r -d -o "bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/darwin/debug/shared-linkable-true/libboost_prg_exec_monitor-d-1_33_1.lo" "bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/darwin/debug/shared-linkable-true/execution_monitor.o" "bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/darwin/debug/shared-linkable-true/cpp_main.o" \ && \ c++ -g -o "bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/darwin/debug/shared-linkable-true/libboost_prg_exec_monitor-d-1_33_1.dylib" "bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/darwin/debug/shared-linkable-true/libboost_prg_exec_monitor-d-1_33_1.lo" \ \ -dynamiclib -install_name "libboost_prg_exec_monitor-d-1_33_1.dylib" \ && \ rm -f "bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/darwin/debug/shared-linkable-true/libboost_prg_exec_monitor-d-1_33_1.lo" ...failed darwin-Link-DyLib-action bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/darwin/debug/shared-linkable-true/libboost_prg_exec_monitor-d-1_33_1.dylib... darwin-Link-DyLib-action bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/darwin/release/shared-linkable-true/libboost_prg_exec_monitor-1_33_1.dylib ld: Undefined symbols: __Z8cpp_mainiPPc /usr/bin/libtool: internal link edit command failed DYLD_LIBRARY_PATH=bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/darwin/release/shared-linkable-true export DYLD_LIBRARY_PATH ld -dynamic -m -r -d -o "bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/darwin/release/shared-linkable-true/libboost_prg_exec_monitor-1_33_1.lo" "bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/darwin/release/shared-linkable-true/execution_monitor.o" "bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/darwin/release/shared-linkable-true/cpp_main.o" \ && \ c++ -Wl,-x -o "bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/darwin/release/shared-linkable-true/libboost_prg_exec_monitor-1_33_1.dylib" "bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/darwin/release/shared-linkable-true/libboost_prg_exec_monitor-1_33_1.lo" \ \ -dynamiclib -install_name "libboost_prg_exec_monitor-1_33_1.dylib" \ && \ rm -f "bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/darwin/release/shared-linkable-true/libboost_prg_exec_monitor-1_33_1.lo" ...failed darwin-Link-DyLib-action bin/boost/libs/test/build/libboost_prg_exec_monitor.dylib/darwin/release/shared-linkable-true/libboost_prg_exec_monitor-1_33_1.dylib... darwin-Link-DyLib-action bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/libboost_test_exec_monitor-d-1_33_1.dylib ld: Undefined symbols: __Z9test_mainiPPc /usr/bin/libtool: internal link edit command failed DYLD_LIBRARY_PATH=bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true export DYLD_LIBRARY_PATH ld -dynamic -m -r -d -o "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/libboost_test_exec_monitor-d-1_33_1.lo" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/compiler_log_formatter.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/execution_monitor.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/framework.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/plain_report_formatter.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/progress_monitor.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/results_collector.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/results_reporter.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/test_main.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/test_tools.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/unit_test_log.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/unit_test_main.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/unit_test_monitor.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/unit_test_parameters.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/unit_test_suite.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/xml_log_formatter.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/xml_report_formatter.o" \ && \ c++ -g -o "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/libboost_test_exec_monitor-d-1_33_1.dylib" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/libboost_test_exec_monitor-d-1_33_1.lo" \ \ -dynamiclib -install_name "libboost_test_exec_monitor-d-1_33_1.dylib" \ && \ rm -f "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/libboost_test_exec_monitor-d-1_33_1.lo" ...failed darwin-Link-DyLib-action bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/debug/shared-linkable-true/libboost_test_exec_monitor-d-1_33_1.dylib... darwin-Link-DyLib-action bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/libboost_test_exec_monitor-1_33_1.dylib ld: Undefined symbols: __Z9test_mainiPPc /usr/bin/libtool: internal link edit command failed DYLD_LIBRARY_PATH=bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true export DYLD_LIBRARY_PATH ld -dynamic -m -r -d -o "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/libboost_test_exec_monitor-1_33_1.lo" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/compiler_log_formatter.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/execution_monitor.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/framework.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/plain_report_formatter.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/progress_monitor.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/results_collector.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/results_reporter.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/test_main.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/test_tools.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/unit_test_log.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/unit_test_main.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/unit_test_monitor.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/unit_test_parameters.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/unit_test_suite.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/xml_log_formatter.o" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/xml_report_formatter.o" \ && \ c++ -Wl,-x -o "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/libboost_test_exec_monitor-1_33_1.dylib" "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/libboost_test_exec_monitor-1_33_1.lo" \ \ -dynamiclib -install_name "libboost_test_exec_monitor-1_33_1.dylib" \ && \ rm -f "bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/libboost_test_exec_monitor-1_33_1.lo" ...failed darwin-Link-DyLib-action bin/boost/libs/test/build/libboost_test_exec_monitor.dylib/darwin/release/shared-linkable-true/libboost_test_exec_monitor-1_33_1.dylib... darwin-Link-DyLib-action bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/libboost_unit_test_framework-d-1_33_1.dylib ld: Undefined symbols: __Z20init_unit_test_suiteiPPc /usr/bin/libtool: internal link edit command failed DYLD_LIBRARY_PATH=bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true export DYLD_LIBRARY_PATH ld -dynamic -m -r -d -o "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/libboost_unit_test_framework-d-1_33_1.lo" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/compiler_log_formatter.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/execution_monitor.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/framework.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/plain_report_formatter.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/progress_monitor.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/results_collector.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/results_reporter.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/test_tools.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/unit_test_log.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/unit_test_main.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/unit_test_monitor.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/unit_test_parameters.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/unit_test_suite.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/xml_log_formatter.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/xml_report_formatter.o" \ && \ c++ -g -o "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/libboost_unit_test_framework-d-1_33_1.dylib" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/libboost_unit_test_framework-d-1_33_1.lo" \ \ -dynamiclib -install_name "libboost_unit_test_framework-d-1_33_1.dylib" \ && \ rm -f "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/libboost_unit_test_framework-d-1_33_1.lo" ...failed darwin-Link-DyLib-action bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/debug/shared-linkable-true/libboost_unit_test_framework-d-1_33_1.dylib... darwin-Link-DyLib-action bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/libboost_unit_test_framework-1_33_1.dylib ld: Undefined symbols: __Z20init_unit_test_suiteiPPc /usr/bin/libtool: internal link edit command failed DYLD_LIBRARY_PATH=bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true export DYLD_LIBRARY_PATH ld -dynamic -m -r -d -o "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/libboost_unit_test_framework-1_33_1.lo" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/compiler_log_formatter.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/execution_monitor.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/framework.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/plain_report_formatter.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/progress_monitor.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/results_collector.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/results_reporter.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/test_tools.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/unit_test_log.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/unit_test_main.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/unit_test_monitor.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/unit_test_parameters.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/unit_test_suite.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/xml_log_formatter.o" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/xml_report_formatter.o" \ && \ c++ -Wl,-x -o "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/libboost_unit_test_framework-1_33_1.dylib" "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/libboost_unit_test_framework-1_33_1.lo" \ \ -dynamiclib -install_name "libboost_unit_test_framework-1_33_1.dylib" \ && \ rm -f "bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/libboost_unit_test_framework-1_33_1.lo" ...failed darwin-Link-DyLib-action bin/boost/libs/test/build/libboost_unit_test_framework.dylib/darwin/release/shared-linkable-true/libboost_unit_test_framework-1_33_1.dylib... ...failed updating 6 targets... Not all Boost libraries built properly.