Sorry to repost, but I am at a loss and was hoping I have missed something.  I am on Intel C++ 11.0 on windows.<br /><br />I built boost::filesystem and boost::system as static libraries with the following line in my userconfig.jam<br /><br />using intel-win : 11.0 : : &lt;cxxflags&gt;/Qstd:c++0x ;<br /><br /><br />I am then compiling a project (that works with non-C++0x just fine) with /Qstd:c++0x in the command line.  But when I try to link it with my calls to boost::filesystem header functions, I get the following link errors (it must be using auto linking)<br /><br />1&gt;etk_template.obj : error LNK2019: unresolved external symbol &quot;class boost::system::error_category const & __cdecl boost::system::get_system_category(void)&quot; (?get_system_category@system@boost@@YAABVerror_category@12@XZ) referenced in function _main<br />1&gt;etk_template2.obj : error LNK2001: unresolved external symbol &quot;class boost::system::error_category const & __cdecl boost::system::get_system_category(void)&quot; (?get_system_category@system@boost@@YAABVerror_category@12@XZ)<br />1&gt;etk_template.obj : error LNK2019: unresolved external symbol &quot;class boost::system::error_category const & __cdecl boost::system::get_generic_category(void)&quot; (?get_generic_category@system@boost@@YAABVerror_category@12@XZ) referenced in function _main<br />1&gt;etk_template2.obj : error LNK2001: unresolved external symbol &quot;class boost::system::error_category const & __cdecl boost::system::get_generic_category(void)&quot; (?get_generic_category@system@boost@@YAABVerror_category@12@XZ)<br /><br /><br />I am not changing any pre-compiler definitions for boost when I use /Qstd:c++0x.  Should I be changing anything there?  Am I out of luck?<br /><br />-Jesse