lib LibC
  fun __errno : Int*

  E2BIG           =  7
  EACCES          = 13
  EADDRINUSE      = 48
  EADDRNOTAVAIL   = 49
  EAFNOSUPPORT    = 47
  EAGAIN          = 35
  EALREADY        = 37
  EBADF           =  9
  EBUSY           = 16
  ECANCELED       = 88
  ECHILD          = 10
  ECONNABORTED    = 53
  ECONNREFUSED    = 61
  ECONNRESET      = 54
  EDEADLK         = 11
  EDESTADDRREQ    = 39
  EDOM            = 33
  EDQUOT          = 69
  EEXIST          = 17
  EFAULT          = 14
  EFBIG           = 27
  EHOSTUNREACH    = 65
  EIDRM           = 89
  EILSEQ          = 84
  EINPROGRESS     = 36
  EINTR           =  4
  EINVAL          = 22
  EIO             =  5
  EISCONN         = 56
  EISDIR          = 21
  ELOOP           = 62
  EMFILE          = 24
  EMLINK          = 31
  EMSGSIZE        = 40
  ENAMETOOLONG    = 63
  ENETDOWN        = 50
  ENETRESET       = 52
  ENETUNREACH     = 51
  ENFILE          = 23
  ENOBUFS         = 55
  ENODEV          = 19
  ENOENT          =  2
  ENOEXEC         =  8
  ENOLCK          = 77
  ENOMEM          = 12
  ENOMSG          = 90
  ENOPROTOOPT     = 42
  ENOSPC          = 28
  ENOSYS          = 78
  ENOTCONN        = 57
  ENOTDIR         = 20
  ENOTEMPTY       = 66
  ENOTSOCK        = 38
  ENOTSUP         = 91
  ENOTTY          = 25
  ENXIO           =  6
  EOPNOTSUPP      = 45
  EOVERFLOW       = 87
  EPERM           =  1
  EPIPE           = 32
  EPROTONOSUPPORT = 43
  EPROTOTYPE      = 41
  ERANGE          = 34
  EROFS           = 30
  ESPIPE          = 29
  ESRCH           =  3
  ESTALE          = 70
  ETIMEDOUT       = 60
  ETXTBSY         = 26
  EWOULDBLOCK     = LibC::EAGAIN
  EXDEV           = 18
end