Ocsigen not installing in OPAM with OCaml 4.07

I did an “opam switch” to OCaml 4.07.0. All of the packages I had installed for 4.06.1 installed nicely, except “ocsigenserver”:

# File "ocsigen_server.ml", line 1326, characters 8-27:
# Warning 3: deprecated: module Lwt_chan
#  Use module Lwt_io.
# File "_none_", line 1: 
# Error: Files ../baselib/baselib.cma(Ocsigen_commandline)
#        and ../baselib/parsecommandline.cma(Ocsigen_getcommandline)
#        make inconsistent assumptions over interface Ocsigen_getcommandline

I’ve filed a Github issue: https://github.com/ocsigen/ocsigenserver/issues/150



I can replicate, FWIW. I see this warning, which seems significant:

Warning 58: no cmx file was found in path for module Ocsigen_getcommandline, and its interface was not compiled with -opaque