This software is licensed under the GNU GPL v2, with two modifications,
as follows:

--An application hosted on a server and remotely operated by users, such
as a web application or database server, is understood to be distribution
of the software, and therefore all GPL v2 clauses regarding distribution
apply. For example, a web application must include a link for downloading
the application source code.

--You are explicitly granted permission to link this software to other
code licensed under other licenses, such as GPL v3 or the BSD license.
Linking to a differently-licensed code base does not free this code (or
the combination) of the stipulations of the GPLv2 plus the above clause.

On Debian systems, the complete text of the GNU General
Public License version 2 can be found in "/usr/share/common-licenses/GPL-2". 

This package 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.

This package 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. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this package. If not, see <http://www.gnu.org/licenses/>.

On Debian systems, the complete text of the GNU General
Public License version 2 can be found in "/usr/share/common-licenses/GPL-2".