#

 # TWiki Enterprise Collaboration Platform, http://TWiki.org/

 #

 # Copyright (C) 2000-2006 TWiki Contributors.

 #

 # This program is free software; you can redistribute it and/or

 # modify it under the terms of the GNU General Public License

 # as published by the Free Software Foundation; either version 2

 # of the License, or (at your option) any later version. For

 # more details read LICENSE in the root of this distribution.

 #

 # This program is distributed in the hope that it will be useful,

 # but WITHOUT ANY WARRANTY; without even the implied warranty of

 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

 #

 # As per the GPL, removal of this notice is prohibited.

 package TWiki::Configure::Checkers::OS;

 use strict;

 use TWiki::Configure::Checker;

 use base 'TWiki::Configure::Checker';

 sub check {

     my $this = shift;

     if( defined $TWiki::cfg{OS} &&

           $TWiki::cfg{OS} !~ /^(UNIX|WINDOWS|VMS|DOS|MACINTOSH|OS2)$/ ) {

         return $this->WARN(<<HERE

 Unrecognised operating system $TWiki::cfg{OS}.

 Accepted types are: UNIX WINDOWS VMS DOS MACINTOSH OS2

 HERE

                        );

     }

     return '';

 }

 1;