WUNTRACED

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
  1. auto WUNTRACED;
  2. auto WUNTRACED;
  3. auto WUNTRACED;
  4. auto WUNTRACED;
    version(!linux && !OSX && !FreeBSD && solaris)
    extern (C) const
    auto WUNTRACED = octal!(4);

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