Constant libc::FD_CLOEXEC
pub const FD_CLOEXEC: ::c_int = 0x1;The portability is definied by:
#[cfg(all(not(target_os = "redox"), not(any())))]pub const FD_CLOEXEC: ::c_int = 0x1;#[cfg(all(not(target_os = "redox"), not(any())))]