Constant libc::TCP_MD5SIG_EXT
pub const TCP_MD5SIG_EXT: ::c_int = 32;The portability is definied by:
#[cfg(all(not(target_os = "emscripten"), not(any())))]pub const TCP_MD5SIG_EXT: ::c_int = 32;#[cfg(all(not(target_os = "emscripten"), not(any())))]