I'm a newbie to boost, and I'm trying to use boost.thread together with STLport in VC6.

When I compile my project in debug version, I get a error message saying "fatal error C1189: #error :  'Build options aren't compatible with pre-built libraries'", the error code is in auto_link.hpp in boost directory:

#     if (defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION)) && (defined(_STLP_OWN_IOSTREAMS) || defined(__STL_OWN_IOSTREAMS))

#        if defined(_DEBUG) && (defined(__STL_DEBUG) || defined(_STLP_DEBUG))
#            define BOOST_LIB_RT_OPT "-gdp"
#        elif defined(_DEBUG)
#            define BOOST_LIB_RT_OPT "-gdp"
#            pragma message("warning: STLPort debug versions are built with /D_STLP_DEBUG=1")
#            error "Build options aren't compatible with pre-built libraries"
#        else
#            define BOOST_LIB_RT_OPT "-p"
#        endif

But I don't get this error message in release version.

What can I do?