@ilmenite I have been looking at CMake docs and they are discouraging recursion because if you use it the build system will not know when a single file has changed. But I will look into it. Also a single CMake file should be enough as it is a very comprehensive build system. Everything about the OS (Mac or Linux), oF version, etc. can be built into a single CMake file.
@SFBurning do you generally need to access system frameworks other than OpenGL. Because I fixed the GL functions problem but if you try to access other system frameworks theyt will also give a similar error.