const syscall.F_DUPFD_CLOEXEC

3 uses

	syscall (current package)
		zerrors_linux_amd64.go#L267: 	F_DUPFD_CLOEXEC                  = 0x406

	internal/poll
		fd_unix.go#L697: 	if syscall.F_DUPFD_CLOEXEC != 0 && atomic.LoadInt32(&tryDupCloexec) == 1 {
		fd_unix.go#L698: 		r0, e1 := fcntl(fd, syscall.F_DUPFD_CLOEXEC, 0)