Function NSOpenGLSetOption 

pub extern "C-unwind" fn NSOpenGLSetOption(
    pname: NSOpenGLGlobalOption,
    param: i32,
)

👎Deprecated:

OpenGL API deprecated; please use Metal and MetalKit. (Define GL_SILENCE_DEPRECATION to silence these warnings.)

Available on Apple and crate feature NSOpenGL and crate feature objc2-open-gl only.