#![cfg_attr(any(weak, both), feature(link_arg_attribute))] #[cfg_attr(any(link, both), link(name = "CoreFoundation", kind = "framework"))] #[cfg_attr( any(weak, both), link(name = "-weak_framework", kind = "link-arg", modifiers = "+verbatim"), link(name = "CoreFoundation", kind = "link-arg", modifiers = "+verbatim") )] extern "C" { fn CFRunLoopGetTypeID() -> core::ffi::c_ulong; } fn main() { unsafe { CFRunLoopGetTypeID(); } }