Freeze in glfwCreateWindow

[fushi219]

Thanks for your great job!
However, i meet some problems with the source code.
I wonder if this is available in mac osx? There exists some problems compiling master branch:

1. cmake set openmp lib as libomp, however, app clang does not like this
2. MatchCubes.h needs include <Eigen/StdVector>
3. MixedSolverSchurMp,h seems to not find recursive_conjugate_gradient_OMP as _OPENMP not defined?
4. some library need to link to cholmod.

After solving these problems, it finally compiled successfully on my macbook.
However, when running the app, it stucked in glfwCreateWindow and it's hard for me to solve it.

Wish your answer! Thanks.