GPL-3+-with-opencl-exception

GNU General Public License, version 3 or any later version.
See GPL-3 for the full text of this license.

Additional permission under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any library or libraries implementing the
Khronos Group OpenCL Standard v1.0 or later (or modified
versions of those libraries), containing parts covered by the
terms of the licenses of their respective copyright owners,
the licensors of this Program grant you additional permission
to convey the resulting work.