Re: PHP non-free or wrongly named?

[Lewis Jardine <debian@catbox.co.uk>]

Michael Below wrote:
> > Here's the license except that left us wondering:
> >
> >  4. Products derived from this software may not be called "PHP", nor
> >     may "PHP" appear in their name, without prior written permission
> >     from group@php.net.  You may indicate that your software works in
> >     conjunction with PHP by saying "Foo for PHP" instead of calling
> >     it "PHP Foo" or "phpfoo"
>
> When I read this last sentence I started wondering about packages like
> phpbb, phpgroupware etc. As far as I know phpbb is an app for PHP, not
> a derived work. But the trademark issue might remain.
>
> Maybe one should ask the PHP group to clarify if their claim only
> applies to derived works, or if they are trying to enforce trademark
> rights on any use of "PHP". If it's the latter, Debian might have to
> worry about it...

Surely by definition the claim only applies to derived works, seeing as 
it is in the license for distribution of PHP? Rather than being a 
trademark claim, is it not the case that this is an attempt to achieve 
trademark-like behaviour with copyright law?

--
Lewis Jardine
IANAL, IANADD