Fixed networkd to work with linux 5.2

Makefile

 target all: LC_ALL=$(SYSTEM_LOCALE)
 all: systemd-user-sessions network-config
 	tar xf systemd-241.tar.gz
+	patch -Np1 -d systemd-241 < systemd-241-networkd_fix.patch
 	ln -s /tools/bin/true /usr/bin/xsltproc
 	cd systemd-241 && tar xf ../systemd-man-pages-241.tar.xz
 	cd systemd-241 && sed -i 's/GROUP="render", //' rules/50-udev-default.rules.in

systemd-241-networkd_fix.patch

+diff -uNr systemd-241/src/network/networkd-link.c systemd-241-networkd_fix/src/network/networkd-link.c
+--- systemd-241/src/network/networkd-link.c	2019-02-14 20:41:58.000000000 +1030
++++ systemd-241-networkd_fix/src/network/networkd-link.c	2019-09-12 04:14:16.658391425 +0930
+@@ -1788,6 +1788,9 @@
+         assert(link->manager);
+         assert(link->manager->rtnl);
+ 
++        if (!socket_ipv6_is_supported())
++                return 0;
++
+         log_link_debug(link, "Setting address genmode for link");
+ 
+         r = sd_rtnl_message_new_link(link->manager->rtnl, &req, RTM_SETLINK, link->ifindex);
+@@ -1889,31 +1892,6 @@
+                         return log_link_error_errno(link, r, "Could not set MAC address: %m");
+         }
+ 
+-        if (link_ipv6_enabled(link)) {
+-                r = sd_netlink_message_open_container(req, IFLA_AF_SPEC);
+-                if (r < 0)
+-                        return log_link_error_errno(link, r, "Could not open IFLA_AF_SPEC container: %m");
+-
+-                /* if the kernel lacks ipv6 support setting IFF_UP fails if any ipv6 options are passed */
+-                r = sd_netlink_message_open_container(req, AF_INET6);
+-                if (r < 0)
+-                        return log_link_error_errno(link, r, "Could not open AF_INET6 container: %m");
+-
+-                if (!in_addr_is_null(AF_INET6, &link->network->ipv6_token)) {
+-                        r = sd_netlink_message_append_in6_addr(req, IFLA_INET6_TOKEN, &link->network->ipv6_token.in6);
+-                        if (r < 0)
+-                                return log_link_error_errno(link, r, "Could not append IFLA_INET6_TOKEN: %m");
+-                }
+-
+-                r = sd_netlink_message_close_container(req);
+-                if (r < 0)
+-                        return log_link_error_errno(link, r, "Could not close AF_INET6 container: %m");
+-
+-                r = sd_netlink_message_close_container(req);
+-                if (r < 0)
+-                        return log_link_error_errno(link, r, "Could not close IFLA_AF_SPEC container: %m");
+-        }
+-
+         r = netlink_call_async(link->manager->rtnl, NULL, req, link_up_handler,
+                                link_netlink_destroy_callback, link);
+         if (r < 0)
+@@ -3001,11 +2979,9 @@
+                         return r;
+         }
+ 
+-        if (socket_ipv6_is_supported()) {
+-                r = link_configure_addrgen_mode(link);
+-                if (r < 0)
+-                        return r;
+-        }
++        r = link_configure_addrgen_mode(link);
++        if (r < 0)
++                return r;
+ 
+         return link_configure_after_setting_mtu(link);
+ }