Hi all,
I'm attempting to convert an existing (reasonably small) HTTP server written in OCaml to run on mirage's xen backend. I've gotten the compiler reasonably happy by replacing uses of Unix / Lwt_unix with appropriate mirage-compatible modules. But when it comes to link time, it seems that my application is still indirectly depending on Unix:
+ ocamlbuild -quiet -cflag -warn-error -cflag +a-3 -build-dir [...]/_build/mirage-xen -use-ocamlfind -lflags -g,-linkpkg,-dontlink,unix main.native.o
+ ocamlfind ocamlopt -g -linkpkg -dontlink unix -output-obj -syntax camlp4o -package 'fat-filesystem, io-page, mirage-block-xen.front, batteries, yojson, safepass, sha, lwt, lwt.syntax, mirage-console.xen, mirage-types, mirage-types.lwt, mirage-net-xen, mirage-types,cohttp,cohttp.lwt, mirage-http, lwt, mirage.runtime, tcpip.stack-direct,tcpip.stack-socket,mirage-clock-xen,conduit.mirage' src/passe.cmx src/passe_server.cmx src/unikernel.cmx main.cmx -o main.native.o
File "_none_", line 1:
Error: No implementations provided for the following modules:
Unix referenced from /home/tim/.opam/mirage_4_01_0/lib/lwt/lwt-unix.cmxa(Lwt_engine),
/home/tim/.opam/mirage_4_01_0/lib/lwt/lwt-unix.cmxa(Lwt_unix),
/home/tim/.opam/mirage_4_01_0/lib/ipaddr/ipaddr_unix.cmxa(Ipaddr_unix)
Command exited with code 2.
I can't figure out why those modules are being linked in, though. I have grepped all files in _build/mirage-xen/**/*.ml.depends (as well as my own source code), and nothing in there matches "unix", nor mentions any of the modules listed above. The only lwt_* matches are: