Syntax error in autogenerated `db_actions.ml`

[superbobry]

Hello, I'm trying to build the latest xen-api on CentOS5; here's what I got so far:

File "db_actions.ml", line 1293, characters 17-20:
Error: Syntax error
*** omake: 421/2819 targets are up to date                                                                           
*** omake: failed (1.54 sec, 8/56 scans, 7/142 rules, 18/1074 digests)
*** omake: targets were not rebuilt because of errors:                                                               
   <scanner ocaml/autogen/scan-ocaml-db_actions.ml>
make: *** [all] Error 2

Obviously, it's ocaml/idl/ocaml_backend/gen_db_actions.ml:223 which is causing trouble:

221    let open_db_module =
222        "let __t = Context.database_of __context in\n" ^
223            "let module DB = (val (Db_cache.get __t) : Db_interface.DB_ACCESS) in\n"

I'm pretty new to OCaml and can't figure out what's wrong by myself, any hints?

[matthiasgoergens]

That's strange. We'll look into it. Thanks!

[djs55]

I think it's the new syntax "let module M = (val e : S)" which is only in ocaml 3.12. Try upgrading your ocaml and rebuilding?

[superbobry]

Thank you guys, everything compiled fine on 3.12!