Report a build issue

Hi, When -Dlibnl=disabled, build failed as below: ../src/util/virnetdevbridge.c: In function 'virNetDevBridgeSetupVlans': ../src/util/virnetdevbridge.c:326:9: error: implicit declaration of function 'virNetlinkBridgeVlanFilterSet'; did you mean 'virNetDevBridgeGetVlanFiltering'? [-Werror=implicit-function-declaration] 326 | if (virNetlinkBridgeVlanFilterSet(ifname, RTM_DELLINK, 0, 1, &error) < 0) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | virNetDevBridgeGetVlanFiltering ../src/util/virnetdevbridge.c:326:9: error: nested extern declaration of 'virNetlinkBridgeVlanFilterSet' [-Werror=nested-externs] ../src/util/virnetdevbridge.c:326:47: error: 'RTM_DELLINK' undeclared (first use in this function) 326 | if (virNetlinkBridgeVlanFilterSet(ifname, RTM_DELLINK, 0, 1, &error) < 0) { | ^~~~~~~~~~~ ../src/util/virnetdevbridge.c:326:47: note: each undeclared identifier is reported only once for each function it appears in ../src/util/virnetdevbridge.c:346:55: error: 'RTM_SETLINK' undeclared (first use in this function) 346 | if (virNetlinkBridgeVlanFilterSet(ifname, RTM_SETLINK, flags, | ^~~~~~~~~~~ cc1: all warnings being treated as errors Thanks Zhenzhong