Better fix for initializing atomic on Windows
Better fix for initializing atomic on Windows

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