Constant libc::LIO_NOWAIT
pub const LIO_NOWAIT: ::c_int = 1;The portability is definied by:
#[cfg(all(not(target_env = "uclibc"), not(any())))]pub const LIO_NOWAIT: ::c_int = 1;#[cfg(all(not(target_env = "uclibc"), not(any())))]