cant link liburt.so?

[nickhuangxinyu]

Hi,

I installed armadillo, and make lib use:
make (without any link param)
but the so file i complied out is not good.
when i link it, it comes out:
./libURT.so: undefined reference to urt::UnitRoot<double>::set_trend()' ./libURT.so: undefined reference to urt::UnitRoot::compute_adf()'
./libURT.so: undefined reference to urt::UnitRoot<float>::pvalue()' ./libURT.so: undefined reference to urt::UnitRoot::gls_detrend()'
./libURT.so: undefined reference to urt::UnitRoot<double>::show()' ./libURT.so: undefined reference to urt::UnitRoot::pvalue()'
./libURT.so: undefined reference to urt::UnitRoot<double>::set_method()' ./libURT.so: undefined reference to urt::UnitRoot::set_lags()'
./libURT.so: undefined reference to urt::UnitRoot<double>::adf_regression()' ./libURT.so: undefined reference to urt::UnitRoot::set_trend()'

but i confirmed, all cpp file is compiled, can you help on this?