I have compiled the libraries and included them.

But I make a test like below
Linking errors occur... =[

#include <ClanLib/core.h>
#include <ClanLib/application.h>

class MyClanLibApplication : public CL_ClanApplication
{
public:
virtual int main(int argc, char **argv)
{
CL_SetupCore setup_init;

// game code here

return 0;
}
} app;

Linking...
LIBCMT.lib(setlocal.obj) : error LNK2005: __configthreadlocale already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(_ctype.obj) : error LNK2005: _isspace already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(invarg.obj) : error LNK2005: __invoke_watson already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(invarg.obj) : error LNK2005: __invalid_parameter_noinfo already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(tidtable.obj) : error LNK2005: __encode_pointer already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(tidtable.obj) : error LNK2005: __decode_pointer already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(lconv.obj) : error LNK2005: _localeconv already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(hooks.obj) : error LNK2005: "void __cdecl terminate(void)" (?terminate@@YAXXZ) already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(trnsctrl.obj) : error LNK2005: ___CxxFrameHandler3 already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(typinfo.obj) : error LNK2005: "public: void __thiscall type_info::_type_info_dtor_internal_method(void)" (?_type_info_dtor_internal_method@type_info@@QAEXX Z) already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(typinfo.obj) : error LNK2005: "private: __thiscall type_info::type_info(class type_info const &)" (??0type_info@@AAE@ABV0@@Z) already defined in MSVCRT.lib(ti_inst.obj)
LIBCMT.lib(typinfo.obj) : error LNK2005: "private: class type_info & __thiscall type_info:perator=(class type_info const &)" (??4type_info@@AAEAAV0@ABV0@@Z) already defined in MSVCRT.lib(ti_inst.obj)
LIBCMT.lib(crt0dat.obj) : error LNK2005: __amsg_exit already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(crt0dat.obj) : error LNK2005: __initterm_e already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(crt0dat.obj) : error LNK2005: _exit already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(crt0dat.obj) : error LNK2005: __exit already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(crt0dat.obj) : error LNK2005: __cexit already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(mlock.obj) : error LNK2005: __unlock already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(mlock.obj) : error LNK2005: __lock already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(winxfltr.obj) : error LNK2005: __XcptFilter already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(atox.obj) : error LNK2005: _atoi already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(exsup.obj) : error LNK2005: __except_list already defined in MSVCRT.lib(dllsupp.obj)
LIBCMT.lib(crt0init.obj) : error LNK2005: ___xi_a already defined in MSVCRT.lib(cinitexe.obj)
LIBCMT.lib(crt0init.obj) : error LNK2005: ___xi_z already defined in MSVCRT.lib(cinitexe.obj)
LIBCMT.lib(crt0init.obj) : error LNK2005: ___xc_a already defined in MSVCRT.lib(cinitexe.obj)
LIBCMT.lib(crt0init.obj) : error LNK2005: ___xc_z already defined in MSVCRT.lib(cinitexe.obj)
LIBCMT.lib(tolower.obj) : error LNK2005: _tolower already defined in MSVCRT.lib(MSVCR80.dll)
LIBCMT.lib(errmode.obj) : error LNK2005: ___set_app_type already defined in MSVCRT.lib(MSVCR80.dll)
LINK : warning LNK4098: defaultlib 'MSVCRT' conflicts with use of other libs; use /NODEFAULTLIB:library
LINK : warning LNK4098: defaultlib 'LIBCMT' conflicts with use of other libs; use /NODEFAULTLIB:library
LIBCMT.lib(crt0.obj) : error LNK2001: unresolved external symbol _main

Thank you.