架构x86_64的未定义符号:“_it”，从main中引用。Mac上的o / Netbeans。

I´m a beginner with OpenGL and "my" first program is this Sierpinski Gasket. I´m using Netbeans on my MacBook Pro and I believe I have the libraries installed but maybe they are not linked correctly.I´m a beginner with OpenGL and "my" first progr