The Free Software Foundation says this license is not GPL compatible.

Aladdin Free Public License Version 9, September 18,2000
Apache Software License Version 1.1
Apple Public Source License Version 1.2 (FSF has long discussion)
The Artistic License Feb 8, 1993 (FSF mentions too vague)
The Artistic License Feb 8, 1997 (FSF mentions too vague)
The Artistic License (FSF mentions too vague)
BSD license Original i.e with advertising clause (due to 3)
IBM Public License Version 1.0 (because of 2.b)
Jabber Open Source License Version 1.0
Mozilla Public License Version 1.0
Mozilla Public License Version 1.1 (FSF says this license is not GPL compatible, unless the GPL is listed under section 13)
Netscape Public License Version 1.0 (FSF mentions Amendment V)
OpenLDAP Public License Version 2.3 (because of 4,5)
The license of Python 1.6b
The Q Public License Version 1.0
Sun Community Source License (Research Use) Version 2.3 Feb 23, 1999
Sun Solaris Source Code (FR) Version 1.1 December 4, 2000