I am trying to build 1.45 with the following command on Win7 x64 with MSVC 9: bjam variant=release link=shared threading=multi runtime-link=shared --layout=tagged install and I get the following output: warning: No toolsets are configured. warning: Configuring default toolset "msvc". warning: If the default is wrong, your build may not work correctly. warning: Use the "toolset=xxxxx" option to override our guess. warning: For more configuration options, please consult warning: http://boost.org/boost-build2/doc/html/bbv2/advanced/configuration.html C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\configure.jam:145: in builds-raw *** argument error * rule UPDATE_NOW ( targets * : log ? : ignore-minus-n ? ) * called with: ( <pbin.v2\libs\regex\build\msvc-9.0\debug>has_icu.exe <pbin.v2\libs\regex\build\msvc-9.0\debug>has_icu.pdb : : ignore-minus-n : ignore-minus-q ) * extra argument ignore-minus-q (builtin):see definition of rule 'UPDATE_NOW' being called C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\configure.jam:179: in configure.builds C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\configure.jam:216: in object(check-target-builds-worker)@385.check C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/kernel\modules.jam:103: in modules.call-in C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/util\indirect.jam:96: in indirect.call C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:1012: in targets.evaluate-requirements C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:1393: in basic-target.compute-usage-requirements C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\alias.jam:47: in compute-usage-requirements C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:1319: in object(alias-target-class)@389.generate C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:732: in generate-really C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:704: in object(main-target)@820.generate C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:848: in targets.generate-from-reference C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:1217: in generate-dependencies C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:1268: in object(typed-target)@392.generate C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:732: in generate-really C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:704: in object(main-target)@821.generate C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:848: in targets.generate-from-reference C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:1217: in generate-dependencies C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:1266: in object(typed-target)@145.generate C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:732: in generate-really C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:704: in object(main-target)@802.generate C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:258: in object(project-target)@127.generate C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:848: in targets.generate-from-reference C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:1217: in generate-dependencies C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:1268: in object(install-target-class)@50.generate C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:732: in generate-really C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:704: in object(main-target)@610.generate C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:848: in targets.generate-from-reference C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:1217: in generate-dependencies C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:1268: in object(alias-target-class)@44.generate C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:732: in generate-really C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:704: in object(main-target)@609.generate C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:848: in targets.generate-from-reference C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:1217: in generate-dependencies C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:1268: in object(alias-target-class)@43.generate C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:732: in generate-really C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:704: in object(main-target)@608.generate C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:848: in targets.generate-from-reference C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:1217: in generate-dependencies C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:1268: in object(alias-target-class)@60.generate C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:732: in generate-really C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:704: in object(main-target)@614.generate C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:848: in targets.generate-from-reference C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:1217: in generate-dependencies C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:1268: in alias-target-class.generate Jamroot:648: in build-multiple Jamroot:612: in object(top-level-target)@66.generate C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:732: in generate-really C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2/build\targets.jam:704: in object(main-target)@618.generate C:/Users/kriddile/Desktop/boost_1_45_0/boost_1_45_0/tools/build/v2\build-system.jam:735: in load C:\Users\kriddile\Desktop\boost_1_45_0\boost_1_45_0\tools\build\v2/kernel\modules.jam:283: in import C:\Users\kriddile\Desktop\boost_1_45_0\boost_1_45_0\tools\build\v2\kernel\bootstrap.jam:142: in boost-build C:\Users\kriddile\Desktop\boost_1_45_0\boost_1_45_0\boost-build.jam:17: in module scope