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Appendix E Open Source Licences
Media Server User’s Guide
562
This software consists of voluntary contributions made by many
individuals on behalf of the PHP Group.
The PHP Group can be contacted via Email at group@php.net.
For more information on the PHP Group and the PHP project,
please see <http://www.php.net>.
PHP includes the Zend Engine, freely available at
<http://www.zend.com>.
This Product includes AutoXS-Header, Class-C3-XS, Class-XSAccessor, Class-XSAccessor-Array,
Compress-Raw-Zlib, Digest-SHA1, EV, ExtUtils-Cbuilder, GD, HTML-Parser, JSON-XS, Module-Build,
Sub-Name, Template-Toolkit and XML-Parser software under the same terms as Perl 's license
Perl5 is Copyright (C) 1993-2005, by Larry Wall and others.
It is free software; you can redistribute it and/or modify it under the terms of either:
a) the GNU General Public License as published by the Free Software Foundation; either version 1,
or (at your option) any later version, or
b) the "Artistic License".
For those of you that choose to use the GNU General Public License, my interpretation of the GNU
General Public License is that no Perl script falls under the terms of the GPL unless you explicitly put
said script under the terms of the GPL yourself.
Furthermore, any object code linked with perl does not automatically fall under the terms of the
GPL, provided such object code only adds definitions of subroutines and variables, and does not
otherwise impair the resulting interpreter from executing any standard Perl script. I consider linking
in C subroutines in this manner to be the moral equivalent of defining subroutines in the Perl
language itself. You may sell such an object file as proprietary provided that you provide or offer to
provide the Perl source, as specified by the GNU General Public License. (This is merely an alternate
way of specifying input to the program.) You may also sell a binary produced by the dumping of a
running Perl script that belongs to you, provided that you provide or offer to provide the Perl source
as specified by the GPL. (The fact that a Perl interpreter and your code are in the same binary file
is, in this case, a form of mere aggregation.)
This is my interpretation of the GPL. If you still have concerns or difficulties understanding my
intent, feel free to contact me. Of course, the Artistic License spells all this out for your protection,
so you may prefer to use that.