[horde] phpGroupWare + Horde

[Dan Kuykendall]

> > This is sometimes a limitation, but there are still so many php3 users
> > that we havent felt its worth dropping php3 support just yet. Also Im
> > not happy with the new php4 license and some sites wont upgrade due to
> > it. Hopefully this will be worked out, but we have beena bel to do a
> > surprising amount with php3/php4 compatible code.
> 
> Out of interest, what's their problem with the new PHP4 license that prevents
> an upgrade?  It seems to be very BSD-like.

Well PHP4 has some not-completely-free code in it for the hooks into the
zend tools, which most are very much not free. And since PHP4 is
incompatible with the GPL.
Look here for the details:
http://www.fsf.org/philosophy/license-list.html#GPLIncompatibleLicenses

Its at the bottom of that section of the page.
Also read this part of the PHP4 license

  6. The software incorporates the Zend Engine, a product of Zend
     Technologies, Ltd. ("Zend"). The Zend Engine is licensed to the
     PHP Association (pursuant to a grant from Zend that can be
     found at http://www.php.net/license/ZendGrant/) for
     distribution to you under this license agreement, only as a
     part of PHP.  In the event that you separate the Zend Engine
     (or any portion thereof) from the rest of the software, or
     modify the Zend Engine, or any portion thereof, your use of the
     separated or modified Zend Engine software shall not be governed
     by this license, and instead shall be governed by the license
     set forth at http://www.zend.com/license/ZendLicense/. 

This is the main offender. It basicly allows use of this code for use in
PHP, but cannot be used elsewhere without permission from Zend
Technologies, Ltd.

I have even been part of talks with Richard Stallman (who I dont always
agree with, Im not a "all code must be free" guy), about a team picking
up PHP3 and adding in the PHP4 features but in a completely GPL/LGPL
license.

Seek3r