pub extern fn functions without #[no_mangle]

[kornelski]

src/unix/bsd/apple/mod.rs defines functions that look like replacements for POSIX macros:

    pub fn WSTOPSIG(status: ::c_int) -> ::c_int {
        status >> 8
    }

macro_rules! f makes these functions pub unsafe extern fn, but does not add #[no_mangle], which makes them not callable from C under these names.

Is lack of C-compatible names intentional?

[alexcrichton]

This is indeed intentional! This crate doesn't have a C ABI, it's just intends the Rust interface to look like a C header file basically.

[comex]

Then do these functions actually need to be extern?

[alexcrichton]

As far as I know, no