message: NO-TICKET: Limit not in scope on osx
  PR fixes building casper-node on target osx by not setting constant TARGET_OPEN_FILES_LIMIT
diff: @@ -84,9 +84,6 @@ static MEM_DUMP_THRESHOLD_MB: Lazy<Option<u64>> = Lazy::new(|| {
  .ok()
  });
  -/// The desired limit for open files.
  -const TARGET_OPEN_FILES_LIMIT: Limit = 64_000;
  -
  /// Default threshold for when an event is considered slow. Can be overridden by setting the env
  /// var `CL_EVENT_MAX_MICROSECS=<MICROSECONDS>`.
  const DEFAULT_DISPATCH_EVENT_THRESHOLD: Duration = Duration::from_secs(1);
  @@ -106,6 +103,10 @@ static DISPATCH_EVENT_THRESHOLD: Lazy<Duration> = Lazy::new(|| {
  .unwrap_or_else(|_| DEFAULT_DISPATCH_EVENT_THRESHOLD)
  });
  +#[cfg(target_os = "linux")]
  +/// The desired limit for open files.
  +const TARGET_OPEN_FILES_LIMIT: Limit = 64_000;
  +
  #[cfg(target_os = "linux")]
  /// Adjusts the maximum number of open file handles upwards towards the hard limit.
  fn adjust_open_files_limit() {
  