polygon clipping?

anybody know of a good polygon clipping library? I have been trying to compile this one without success (yet…)

http://www.cs.man.ac.uk/~toby/alan/software/gpc.html

maybe someone has a better option? I don’t have very complex shapes - mostly rectilinear but both convex/concave…

cheers,
chris

Just looked around … this one looks promising too:

http://www.complex-a5.ru/polyboolean/index.html