anchor.diff:  end;
   
   {$IFDEF UNIX}
  +{$IFDEF LINUX}
   function GetGroupName(gid: integer): string;
   var
     p: PGroup;
  
positive.code:   if p <> nil then
      result := p^.gr_name;
  end;
  
  function GetUserName(uid: integer): string;
  var
    p: PPasswd;
  
negative.code:   ,Windows   // Graeme: temporary, just to see how the grid looks under Windows.
    {$ENDIF}
    {$IFDEF UNIX}
      {$IFDEF LINUX},libc{$ENDIF} // Graeme: temporary. libc is not available for FreeBSD.
    ,baseunix
    {$ENDIF}
    ;
  