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Re: Build errors

just out of curiosity for the node.js and unix backend, how do they
handle the OS.Netif module since they don't expose raw socket

On 12 April 2012 14:17, Anil Madhavapeddy <anil@xxxxxxxxxx> wrote:
> Ha! This fails for a fun reason.
> The master/ branch still has the work-in-progress Javascript backend, but it
> is only activated when js_of_ocaml is installed (and it is not currently
> installed on my test machines). ÂIn the Node case, we need bindings for the
> OS.* modules (specifically, Netif for Openflow), and hence the build
> failure. ÂIn order for Node to work correctly, we need:
> - To patch js_of_ocaml to support Javascript Buffers as present in Node.js.
> Raphael had a few patches, but not finished. ÂThis is because Javascript
> strings are immutable, whereas OCaml strings and buffers are mutable (and so
> wrapped as JS objects).
> - Figure out the latest Websocket story (I have avsm/ocaml-socketio on
> Github which started implementing it).
> - Look at how WebStorage works these days (SQL? Key/Value?)
> I'm actually working in the slim/ branch of the tree as part of a
> benchmarking effort at the moment, where I have removed all of the Node
> code, and several of the higher-level protocols such as HTTP, leaving just
> the bare-bones network stack up to TCP. ÂThe plan is to use this as a
> baseline, and add external library support for stuff like DNS, XMPP, HTTP
> and so forth. ÂI've got some interesting early benchmark results which I'll
> send to the list separately later.
> For master/, you can edit lib/Makefile to turn off Node (I've just pushed a
> change to do this to my tree)
> -anil
> On 12 Apr 2012, at 13:53, Sebastian Probst Eide wrote:
> I am trying to build mirage on my xen box.
> I am on Ubuntu 11.10, kernel 3.something
> I have OCaml version 3.12.1 installed from source.
> I am using mirage from avsm/mirage
> When running my friend make, I get:
> ...
> cp openflow/openflow.mli std/openflow.mli
> /usr/local/bin/ocamldep.opt -pp 'camlp4o.opt -I ../../../syntax/_build
> str.cmxs pa_mirage.cmxs -cow-no-open -lwt-debug' -modules std/openflow.mli >
> std/openflow.mli.depends
> /usr/local/bin/ocamlc.opt -c -nostdlib -annot -g -pp 'camlp4o.opt -I
> ../../../syntax/_build str.cmxs pa_mirage.cmxs -cow-no-open -lwt-debug' -I
> std -o std/openflow.cmi std/openflow.mli
> + /usr/local/bin/ocamlc.opt -c -nostdlib -annot -g -pp 'camlp4o.opt -I
> ../../../syntax/_build str.cmxs pa_mirage.cmxs -cow-no-open -lwt-debug' -I
> std -o std/openflow.cmi std/openflow.mli
> File "openflow/switch.mli", line 711, characters 23-34:
> Error: Unbound module OS.Netif
> Command exited with code 2.
> make[1]: *** [node] Error 10
> make[1]: Leaving directory `/home/xen/code/mirage/lib'
> make: *** [all] Error 2
> Any ideas?
> Thanks!
> All the best,
> Sebastian
> --------------------
> Things I have installed:
> findlib-1.2.8
> js_of_ocaml-1.1.1
> lwt-2.3.2
> ocaml-3.12.1

Charalampos Rotsos
PhD student
The University of Cambridge
Computer Laboratory
William Gates Building
JJ Thomson Avenue

Phone: +44-(0) 1223 767032
Email: cr409@xxxxxxxxxxxx



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