Well, Im programming on mac (I really like it because the well, the terminal) and I'm learning opengl in the lib glfw. The problem is that mac has until the version 4.1 of opengl, but when I try to compile the shaders with `version 410` it says `ERROR: 0:1: '' :  version '410' is not supported`. So I would like to know how to set the version that glfw should use.