[GiNaC-list] Ginac and scilab

Hello, I'am a student that i need to implement inside scilab a symbolic derivative. I see that the ginac library implements what i need. But I don't know if anyone have already implement this function inside scilab.If not, please,can you help me to create an unique object ginac.o to load better your library inside Scilab?I've tried to edit the makefile, but I don't understand a lot of that. Thank you in advance. Luca Galassi