pub unsafe extern "C" fn glXMakeContextCurrent(
dpy: *mut Display,
draw: GLXDrawable,
read: GLXDrawable,
ctx: GLXContext,
) -> c_intpub unsafe extern "C" fn glXMakeContextCurrent(
dpy: *mut Display,
draw: GLXDrawable,
read: GLXDrawable,
ctx: GLXContext,
) -> c_int