LIke this: C:\Projects\boost-git\boost\libs\core\test>b2 toolset=clang,clang-cxx11,gcc,gcc-cxx11,msvc-8.0,msvc-10.0,msvc-11.0,msvc-12.0 [...] C:/Projects/boost-git/boost/tools/build/src/build\project.jam:262: in find-jamfile from module project error: Unable to load Jamfile. error: Could not find a Jamfile in directory '/C:/Projects/boost-git/boost/libs/context/config'. error: Attempted to find it with pattern '[Bb]uild.jam [Jj]amfile.v2 [Jj]amfile[Jj]amfile.jam'. error: Please consult the documentation at 'http://www.boost.org'. and then this: C:/Projects/boost-git/boost/tools/build/src/build\project.jam:280: in load-jamfile from module project C:/Projects/boost-git/boost/tools/build/src/build\project.jam:64: in project.load from module project C:/Projects/boost-git/boost/libs/log/build\log-architecture.jam:23: in load from module log-architecture C:/Projects/boost-git/boost/tools/build/src/kernel\modules.jam:289: in modules.import from module modules C:/Projects/boost-git/boost/tools/build/src/build\project.jam:1043: in import from module Jamfile<C:\Projects\boost-git\boost\libs\log\build> ..\..\..\libs\log\build\Jamfile.v2:15: in modules.load from module Jamfile<C:\Projects\boost-git\boost\libs\log\build> C:/Projects/boost-git/boost/tools/build/src/build\project.jam:325: in load-jamfile from module project C:/Projects/boost-git/boost/tools/build/src/build\project.jam:64: in load from module project C:/Projects/boost-git/boost/tools/build/src/build\project.jam:89: in load-used-projects from module project C:/Projects/boost-git/boost/tools/build/src/build\project.jam:75: in load from module project C:/Projects/boost-git/boost/tools/build/src/build\project.jam:113: in load-parent from module project C:/Projects/boost-git/boost/tools/build/src/build\project.jam:464: in initialize from module project C:/Projects/boost-git/boost/tools/build/src/build\project.jam:306: in load-jamfile from module project C:/Projects/boost-git/boost/tools/build/src/build\project.jam:64: in load from module project C:/Projects/boost-git/boost/tools/build/src/build\project.jam:113: in load-parent from module project C:/Projects/boost-git/boost/tools/build/src/build\project.jam:464: in initialize from module project C:/Projects/boost-git/boost/tools/build/src/build\project.jam:306: in load-jamfile from module project C:/Projects/boost-git/boost/tools/build/src/build\project.jam:64: in load from module project C:/Projects/boost-git/boost/tools/build/src/build\project.jam:145: in project.find from module project C:/Projects/boost-git/boost/tools/build/src\build-system.jam:535: in load from module build-system C:\Projects\boost-git\boost\tools\build\src/kernel\modules.jam:289: in import from module modules C:\Projects\boost-git\boost\tools\build\src/kernel/bootstrap.jam:139: in boost-build from module C:\Projects\boost-git\boost\boost-build.jam:17: in module scope from module