use SYSTEM instead of BACKEND for compatibility with Thrust 1.6
use SYSTEM instead of BACKEND for compatibility with Thrust 1.6

cusplibrary/cusplibrary,sdalton1/cusplibrary,sdalton1/cusplibrary,cusplibrary/cusplibrary,sdalton1/cusplibrary,cusplibrary/cusplibrary,cusplibrary/cusplibrary,sdalton1/cusplibrary