fix for ICC 16.0.0
fix for ICC 16.0.0

MengjiaoH/ospray,wilsonCernWq/ospray,wilsonCernWq/ospray,MengjiaoH/ospray,MengjiaoH/ospray,ospray/OSPRay,ospray/OSPRay,ospray/OSPRay,ospray/OSPRay,wilsonCernWq/ospray,MengjiaoH/ospray,MengjiaoH/ospray