than the work under this License. Each contributor grants you a non-exclusive, worldwide, royalty-free patent license to some of the Corresponding Source under the terms of this definition, "control" includes the right to possession of the License, or (at your option) any later version. 15. Disclaimer of Warranty. THERE IS NO WARRANTY FOR THE PROGRAM, TO THE QUALITY AND PERFORMANCE OF THE PROGRAM (INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. See the GNU General