I'm fiddling with the same stuff at the moment. The problem you're having is that the way you compiled the boost::filesystem library is not compatible with the stlport library (just check and you'll see that the mangled names of the functions the linker needs contain the substring _STL, whereas the corresponding mangled names in the library you're linking with have the substring std in the same place instead). What you could do is add the switch -d+2 to the bjam command line when you build the library. It will show you the stlport library switches used. I ended up copying the stuff that bjam printed to the terminal and pasted it into a text editor. Then I changed all the switches that I didn't think were right and saved the file as a batch file which I then executed to build the library (yikes!). But as far as I can tell there is no way to build boost "out of the box" with bjam using VC++ 6.0 and stlport. Anyway, with the exception of the filesystem::path::iterator all is working ok using this approach. Pete -----Original Message----- From: boost-users-bounces@lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Mesut Büyüktokatli Sent: Tuesday, 26 July 2005 9:29 a.m. To: boost-users@lists.boost.org Subject: Re: [Boost-users] problem using boost::filesystem Well, when i try boost::filesystem::path(C:\\, boost::filesystem::native); i get a linker error saying this: Tutorial02.obj : error LNK2001: Nichtaufgeloestes externes Symbol "public: __thiscall boost::filesystem::path::path(char const *,bool (__cdecl*)(class _STL::basic_string<char,struct std::char_traits<char>,class _STL::allocator<char> > const &))" (?? 0path@filesystem@boost@@QAE@PBDP6A_NABV?$basic_string@DU?$char_traits@D@ std@@V?$allocator@D@_STL@@@_STL@@@Z@Z) Tutorial02.obj : error LNK2001: Nichtaufgeloestes externes Symbol "bool __cdecl boost::filesystem::native(class _STL::basic_string<char,struct std::char_traits<char>,class _STL::allocator<char> > const &)" (?native@filesystem@boost@@YA_NABV?$basic_s tring@DU?$char_traits@D@std@@V?$allocator@D@_STL@@@_STL@@@Z) Debug/Tutorial02.exe : fatal error LNK1120: 2 unaufgeloeste externe Verweise (Sorry its german writings in it) Mesut ----- Original Message ----- From: Delfin <mailto:drojas@moodlogic.com> Rojas To: boost-users@lists.boost.org Sent: Monday, July 25, 2005 9:03 PM Subject: Re: [Boost-users] problem using boost::filesystem Try boost::filesystem::path(C:\\, boost::filesystem::native); You can also take a look at the examples under <boost/libs/filesystem/example> Hope this helps, -delfin