message: Trying to fix linux compilation error
diff: @@ -82,6 +82,9 @@ extern "C" {
  pub fn wait4(pid: pid_t, status: *mut c_int, options: c_int, rusage: *mut rusage) -> pid_t;
  }
  +#[cfg(not(target_os = "macos"))]
  +use libc::wait4;
  +
  // Another conditional constant for name resolution: Macos et iOS use
  // SO_NOSIGPIPE as a setsockopt flag to disable SIGPIPE emission on socket.
  // Other platforms do otherwise.
  