我自己编译systemd 后提示错误如下，
checking for DBUS... yes
checking for KMOD... yes
checking for XKBCOMMON... yes
checking for BLKID... yes
checking for MOUNT... no
configure: error: *** libmount support required but libraries not found
package/pkg-generic.mk:191: recipe for target '/disk/firefly/firefly/buildroot/output/build/systemd-231/.stamp_configured' failed
make: *** [/disk/firefly/firefly/buildroot/output/build/systemd-231/.stamp_configured] Error 1
root@ubuntu:/disk/firefly/firefly/buildroot#