Silence _BSD_SOURCE warnings in glibc 2.20 and forward
Silence _BSD_SOURCE warnings in glibc 2.20 and forward

See https://sourceware.org/glibc/wiki/Release/2.20#Packaging_Changes

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