I think I figured it out. I found some other documentation which says the GiNaC namespace must be included to work. Makes sense... Thank you!

I thought they were only talking about the initial make of the libraries. Does that extend to software using them?

I suppose I should add, this is on an AMD64 Gentoo system. I'm compiling using the script provided, but I also can get it to work in Eclipse--with the extra line I mentioned.

I downloaded the CVS source, and I have GiNaC and Nestedsums installed. Everything is set-up in my path, and like I said, if I include using namespace GiNaC; in T1234N.cpp, it works. The others don't...

Hello! I downloaded software called Xloops to evaluate integrals I'm working with. It comes with some example programs to show how the libraries work, but I can't seem to get them compiling...