I'm starting to merge trunk changes into branches/release in my working copy. I won't do any commits until at least minimal tests are passing locally. The first merge was the tools directory, Boost.System, and Boost.Filesystem. Current versions of two libraries are needed by some of the tools. While we don't have an explicit test script for tools, I would expect the following to work correctly on Windows, given the working copy is d:\boost\release: d: cd \boost\release\tools\jam/src build copy bin.ntx86\bjam.exe a-directory-in-PATH cd \boost\release\tools bjam >log The bjam build works fine, but the tools build fails. See log file below. Shouldn't this work? Any ideas what's wrong? Note that the following does work OK, and builds process_jam_log.exe: cd \boost\release\tools\regression\build bjam Thanks, --Beman 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). D:/boost/release/tools/build/v2/build\virtual-target.jam:996: in virtual-target.register-actual-name from module virtual-target error: Duplicate name of actual target: <pregression\build\bin\msvc-8.0\release\link-static\threading-multi>tiny_xml.obj error: previous virtual target { msvc%msvc.compile.c++-tiny_xml.obj.OBJ { detail/tiny_xml.cpp.CPP } } error: created from regression/build/compiler_status error: another virtual target { msvc%msvc.compile.c++-tiny_xml.obj.OBJ { detail/tiny_xml.cpp.CPP } } error: created from regression/build/process_jam_log error: added properties: <define>_CRT_SECURE_NO_WARNINGS error: removed properties: none D:/boost/release/tools/build/v2/build\virtual-target.jam:459: in actualize-no-scanner from module object(file-target)@791 D:/boost/release/tools/build/v2/build\virtual-target.jam:111: in object(file-target)@791.actualize from module object(file-target)@791 D:/boost/release/tools/build/v2/build\virtual-target.jam:743: in actualize-source-type from module object(action)@796 D:/boost/release/tools/build/v2/build\virtual-target.jam:764: in actualize-sources from module object(action)@796 D:/boost/release/tools/build/v2/build\virtual-target.jam:709: in object(action)@796.actualize from module object(action)@796 D:/boost/release/tools/build/v2/build\virtual-target.jam:274: in actualize-action from module object(file-target)@797 D:/boost/release/tools/build/v2/build\virtual-target.jam:467: in actualize-no-scanner from module object(file-target)@797 D:/boost/release/tools/build/v2/build\virtual-target.jam:111: in object(file-target)@797.actualize from module object(file-target)@797 D:/boost/release/tools/build/v2/build\virtual-target.jam:832: in actualize-source-type from module object(non-scanning-action)@1180 D:/boost/release/tools/build/v2/build\virtual-target.jam:764: in actualize-sources from module object(non-scanning-action)@1180 D:/boost/release/tools/build/v2/build\virtual-target.jam:709: in object(non-scanning-action)@1180.actualize from module object(non-scanning-action)@1180 D:/boost/release/tools/build/v2/build\virtual-target.jam:274: in actualize-action from module object(file-target)@1181 D:/boost/release/tools/build/v2/build\virtual-target.jam:467: in actualize-no-scanner from module object(file-target)@1181 D:/boost/release/tools/build/v2/build\virtual-target.jam:111: in object(file-target)@1181.actualize from module object(file-target)@1181 D:/boost/release/tools/build/v2\build-system.jam:488: in load from module build-system D:\boost\release\tools\build\v2/kernel\modules.jam:261: in import from module modules D:\boost\release\tools\build\v2/kernel/bootstrap.jam:132: in boost-build from module D:\boost\release\boost-build.jam:9: in module scope from module