UNIX brain damage

UNIX brain damage n.  Something that has to be done to break
   a network program (typically a mailer) on a non-UNIX system so that
   it will interoperate with UNIX systems.  The hack may qualify as
   `UNIX brain damage' if the program conforms to published
   standards and the UNIX program in question does not.  UNIX brain
   damage happens because it is much easier for other (minority)
   systems to change their ways to match non-conforming behavior than
   it is to change all the hundreds of thousands of UNIX systems out
   there.

   An example of UNIX brain damage is a {kluge} in a mail server to
   recognize bare line feed (the UNIX newline) as an equivalent form
   to the Internet standard newline, which is a carriage return
   followed by a line feed.  Such things can make even a hardened
   {jock} weep.