ROOT and STLPort


I have compiled and installed STLport library (paths are /usr/local/include/stlport and /usr/local/lib).
I want to compile and link ROOT with stlport std lib implementation.
How (where?) can I specify paths and lib names?
I mean, it should be some file inside config dir or somewhere else where to specify -L and -lstlport_gcc

One of the file you are looking for is in $ROOTSYS/config and is call Makefile.XYZ where XYZ in the result of root-config --arch