(This is the second time I am asking this question. Last time I got one answer that didn\'t solve it (the answer there referred a bit of code that was left accidentally from one
Since you are on MacOS, I recommend to set up a 3.2 core profile OpenGL Context. See OpenGL Development on OS X:
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, true);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
// Create the window
window = glfwCreateWindow(width, height, "Flappy Bird", NULL, NULL);