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