[user@ocaml eth_passthru]$ make
ocamlbuild -classic-display -use-ocamlfind -pkgs lwt.syntax,mirage-console-xen,mirage-net-xen,mirage-types.lwt,tcpip.dhcpv4,tcpip.ethif,tcpip.tcpv4,tcpip.udpv4 -tags "syntax(camlp4o),annot,bin_annot,strict_sequence,principal" -cflag -g -lflags -g,-linkpkg,-dontlink,unix main.native.o
ocamlfind ocamlc -c -g -annot -bin-annot -principal -strict-sequence -package tcpip.udpv4 -package tcpip.tcpv4 -package tcpip.ethif -package tcpip.dhcpv4 -package mirage-types.lwt -package mirage-net-xen -package mirage-console-xen -package lwt.syntax -syntax camlp4o -o main.cmo main.ml
+ ocamlfind ocamlc -c -g -annot -bin-annot -principal -strict-sequence -package tcpip.udpv4 -package tcpip.tcpv4 -package tcpip.ethif -package tcpip.dhcpv4 -package mirage-types.lwt -package mirage-net-xen -package mirage-console-xen -package lwt.syntax -syntax camlp4o -o main.cmo main.ml
File "main.ml", line 26, characters 2-28:
Error: This expression has type M1.E.netif -> unit Lwt.t
       but an expression was expected of type 'a Lwt.t
Command exited with code 2.
make: *** [main.native.o] Error 10