let hostname =
try C.get_hostname conn
with
+ (* qemu:/// and other URIs didn't support virConnectGetHostname until
+ * libvirt 0.3.3. Before that they'd throw a virterror. *)
+ | Libvirt.Virterror _
| Invalid_argument "virConnectGetHostname not supported" -> "unknown" in
let libvirt_version =