depends -sub CXX gcc && depends acl && depends attr && depends boost && depends dbus && depends icu && depends libxml2 && depends util-linux && depends xz-utils && depends zlib && optional_depends btrfs-progs --{en,dis}able-btrfs \ 'for BTRFS internal snapshots support' && optional_depends lvm --{en,dis}able-lvm \ 'for LVM thinprovisioned snapshots support'