Bump buildroot to 2019.02

bsp/buildroot/package/avahi/avahi.mk

@@ -125,6 +125,7 @@ endif
 
 ifeq ($(BR2_PACKAGE_DBUS),y)
 AVAHI_DEPENDENCIES += dbus
+AVAHI_CONF_OPTS += --with-dbus-sys=/usr/share/dbus-1/system.d
 else
 AVAHI_CONF_OPTS += --disable-dbus
 endif
@@ -189,6 +190,13 @@ endif
 
 ifeq ($(BR2_PACKAGE_AVAHI_DAEMON),y)
 
+ifeq ($(BR2_PACKAGE_SYSTEMD_SYSUSERS),y)
+define AVAHI_INSTALL_SYSTEMD_SYSUSERS
+	$(INSTALL) -D -m 644 package/avahi/avahi_sysusers.conf \
+		$(TARGET_DIR)/usr/lib/sysusers.d/avahi.conf
+endef
+endif
+
 define AVAHI_INSTALL_INIT_SYSTEMD
 	mkdir -p $(TARGET_DIR)/etc/systemd/system/multi-user.target.wants
 
@@ -200,6 +208,8 @@ define AVAHI_INSTALL_INIT_SYSTEMD
 
 	$(INSTALL) -D -m 644 package/avahi/avahi_tmpfiles.conf \
 		$(TARGET_DIR)/usr/lib/tmpfiles.d/avahi.conf
+
+	$(AVAHI_INSTALL_SYSTEMD_SYSUSERS)
 endef
 
 define AVAHI_INSTALL_DAEMON_INIT_SYSV

bsp/buildroot/package/avahi/avahi_sysusers.conf

@@ -0,0 +1,5 @@
+# sysusers.d snippet for creating the avahi system user automatically
+# at boot on systemd-based systems that ship with an unpopulated
+# /etc. See sysusers.d(5) for details.
+
+u avahi - "Avahi mDNS/DNS-SD Stack"