'mod extern libc { ... }' shouldn't work

[brson]

run-pass/foreign-fn-linkname has this declaration:

#[nolink]                                                                                                                                                                     
#[abi = "cdecl"]                                                                                                                                                              
mod extern libc {                                                                                                                                                             
    #[link_name = "strlen"]                                                                                                                                                   
    fn my_strlen(str: *u8) -> uint;                                                                                                                                           
}

I've never seen mod extern before, nor do I understand why this even parses.

[brson]

This is no longer a problem. No idea what was going on.