anchor.diff:    ((:eloop "ELOOP"))
     ((:enametoolong "ENAMETOOLONG"))
     ((:enoent "ENOENT"))
  -  ((:enotdir "ENOTDIR")))
  +  ((:enotdir "ENOTDIR"))
  +  ((:epipe "EPIPE")))
   
   (include "fcntl.h")
   
  
positive.code:   ((:eaddrnotavail "EADDRNOTAVAIL"))
    ((:edestaddrreq "EDESTADDRREQ"))
    ((:efault "EFAULT"))
    ((:einval "EINVAL"))
    ((:enotsock "ENOTSOCK"))
    ((:eopnotsupp "EOPNOTSUPP"))
  
negative.code:   ((:econnrefused "ECONNREFUSED"))
    ((:ehostunreach "EHOSTUNREACH"))
    ((:einprogress "EINPROGRESS"))
    ((:ehostdown "EHOSTDOWN"))
    ((:enetdown "ENETDOWN"))
    ((:enetunreach "ENETUNREACH"))
    ((:etimedout "ETIMEDOUT"))
  