Define HAVE_ATOMIC for clang.
Define HAVE_ATOMIC for clang.

ttuna/msot-redis,spearhead-ea/redis,MSOpenTech/redis,darksideofthemoo/redis-histogram,ttuna/msot-redis,louisliangjun/redis,HunanTV/redis,louisliangjun/redis,ksarch-saas/redis,splitice/redis,ksarch-saas/redis,MSOpenTech/redis,xuzhezhaozhao/redis_reading,Hailei/redis,xuzhezhaozhao/redis_reading,Hailei/redis,HunanTV/redis,ksarch-saas/redis,xuzhezhaozhao/redis_reading,spearhead-ea/redis,darksideofthemoo/redis-histogram,MSOpenTech/redis,ttuna/msot-redis,slfs007/mk-redis,maodeyi/redis_lua,darksideofthemoo/redis-histogram,splitice/redis,HunanTV/redis,jxwr/redis,louisliangjun/redis,ksarch-saas/redis,ramonsnir/redis,himoca/redis,himoca/redis,MSOpenTech/redis,xuzhezhaozhao/redis_reading,jxwr/redis,MSOpenTech/redis,slfs007/mk-redis,darksideofthemoo/redis-histogram,Hailei/redis,HunanTV/redis,Hailei/redis,maodeyi/redis_lua,slfs007/mk-redis,spearhead-ea/redis,louisliangjun/redis,ramonsnir/redis,ttuna/msot-redis,himoca/redis,ttuna/msot-redis,jxwr/redis,splitice/redis,splitice/redis,ramonsnir/redis,maodeyi/redis_lua