an external routine attribute was changed for this platform

  Explanation:  The external routine definition  was  modified  on
  this  platform because an attribute (such as CLIENT SITE) is not
  supported.

  User Action:  This is just a warning, and can  be  ignored.   To
  avoid  the  warning  change  the  external function or procedure
  definition to be compatible with this  platform,  or  allow  the
  attribute to default for each platform.