Alexander Arhipenko wrote: Hi Alexander,
Here is minimal example that reproduces the issue: #Jamfile.v2:
exe foo : main.cpp /boost/filesystem ;
//main.cpp:
#include <boost/filesystem.hpp>
int main(int argc, char* argv) { return 0; }
In this case following error appears:
main.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) class boost::system::error_category const & __cdecl boost::system::get_system_category(void)" (__imp_?get_system_category@system@boost@@YAABVerror_category@12@XZ) referenced in function "void __cdecl boost::system::`dynamic initializer for 'system_category''(void)" (??__Esystem_category@system@boost@@YAXXZ)
The reason is: #include <boost/filesystem.hpp> --> includes <boost/path.hpp> --> includes <boost/system/system_error.hpp> --> includes <boost/system/error_code.hpp>
File boost/system/error_code.hpp has following declarations:
BOOST_SYSTEM_DECL const error_category & get_system_category(); BOOST_SYSTEM_DECL const error_category & get_generic_category();
So, when the header above is included in main.cpp, BOOST_SYSTEM_DECL unrolls to: __declspec(dllimport). And this causes the linker error.
As a result, library that links boost::filesystem should link boost::system.
Yes, and this: lib boost_filesystem : $(SOURCES).cpp ../../system/build//boost_system : should be enough for that. I'll check why is that not working. - Volodya