Hi, I'm using bjam and VC++2008 Express Edition to build date_time library, for example. When I try to link it with my project I have the error: LINK : fatal error LNK1104: cannot open file 'boost_date_time-vc90-mt-gd-1_40.lib' The bjam's command line options are : --layout=tagged toolset=msvc The name of the genereated lib file is "boost_date_time-mt-gd.lib". The error doesn't occur if the "--layout" option is "versioned" or "system". It seems to me that the cause of this behavior is the following text in the file "boost\config\auto_link.hpp": #ifndef BOOST_AUTO_LINK_NOMANGLE # pragma comment(lib, BOOST_LIB_PREFIX BOOST_STRINGIZE(BOOST_LIB_NAME) "-" BOOST_LIB_TOOLSET BOOST_LIB_THREAD_OPT BOOST_LIB_RT_OPT "-" BOOST_LIB_VERSION ".lib") # ifdef BOOST_LIB_DIAGNOSTIC # pragma message ("Linking to lib file: " BOOST_LIB_PREFIX BOOST_STRINGIZE(BOOST_LIB_NAME) "-" BOOST_LIB_TOOLSET BOOST_LIB_THREAD_OPT BOOST_LIB_RT_OPT "-" BOOST_LIB_VERSION ".lib") # endif #else # pragma comment(lib, BOOST_STRINGIZE(BOOST_LIB_NAME) ".lib") # ifdef BOOST_LIB_DIAGNOSTIC # pragma message ("Linking to lib file: " BOOST_STRINGIZE(BOOST_LIB_NAME) ".lib") # endif #endif "-" BOOST_LIB_VERSION ".lib" is always added in the "pragma comment" directive, if BOOST_AUTO_LINK_NOMANGLE is undefined, of cause. Is this a bug? How can I workaround it if this is not a bug? Thank you.