+##########################################
+# Check if we have libnbd (for NBD support).
+minimum_libnbd=0.9.8
+if test "$libnbd" = "yes" ; then
+ if $(pkg-config --atleast-version=$minimum_libnbd libnbd); then
+ libnbd="yes"
+ libnbd_cflags=$(pkg-config --cflags libnbd)
+ libnbd_libs=$(pkg-config --libs libnbd)
+ else
+ if test "$libnbd" = "yes" ; then
+ echo "libnbd" "Install libnbd >= $minimum_libnbd"
+ fi
+ libnbd="no"
+ fi
+fi
+print_config "NBD engine" "$libnbd"
+