use _BSD_SOURCE instead of __FAVOR_BSD

4 jobs for add-centos7-ci in 1 minute and 8 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #24917
docker linux
build:centos:centos7:amd64

00:00:30

passed #24918
docker linux
build:debian:sid:amd64

00:00:30

 
  Test
passed #24919
docker linux
test:centos:centos7:amd64

00:00:37

passed #24920
docker linux
test:debian:sid:amd64

00:00:37