Commit
2e996f4d4b642c5682c608c9692ad2ffae398ab2 added an include
of linux/netlink.h
This kernel header is not self contained in the linux 2.6 kernel
which breaks compilation with an unknown type sa_family_t
A workaround is to include linux/netlink.h after sys/socket.h
#include <sys/signalfd.h>
#include <grp.h>
#include <linux/fs.h>
-#include <linux/netlink.h>
#include <sys/un.h>
#include <sys/socket.h>
+#include <linux/netlink.h>
#include <systemd/sd-daemon.h>
#include <systemd/sd-bus.h>