Re: Opam installation woes

[Jon Ludlam <jonathan.ludlam@xxxxxxxxxxxxx>]

Running the following script causes the problem. It actually fails after 
the opam switch because of the 'ocamlc -config | grep system' problem, 
but that's because the ocaml compilers have already been installed into 
~/.opam/system/bin. I'm just retrying it without the 'eval `opam config 
-env`', but I kept it in for now as the line is in my .profile, and thus 
I'm certain to forget not to do it... :-)
Jon


#!/bin/bash

set -e
set -x

rm -rf ~/.opam

#opam init -kind rsync default /home/jon/devel/opam-repository

opam init default http://mirage.github.com/opam

opam remote -kind git -add dev git://github.com/mirage/opam-repo-dev
opam update
eval `opam config -env`
opam --verbose install lwt
ls ~/.opam/system/bin > before
opam switch -alias xen 3.12.1+mirage-xen || true
ls ~/.opam/system/bin > after



On 08/08/12 09:20, Thomas Gazagnaire wrote:
> > Hmm. Going back to the opam woes, I'm once more having issues - now with the 
> > standard 'inconsistent assumptions' errors and the like. I suspect this is 
> > because things are being installed in the wrong places.
> >
> > The problem I had earlier was that after the switch to the xen compiler, 
> > ~/.opam/system/... was being reported by ocamlc.  Unless I'm misunderstanding 
> > something, shouldn't the ocamlc binaries be pointing at ~/.opam/xen/... 
> > instead? It looks to me a lot like stuff was being installed into 
> > ~/.opam/system when it should have been going into ~/.opam/xen - specifically 
> > the ocamlc binaries ended up in .opam/system/bin. Is that expected behaviour?
> Hmm, that's very weird. I've just cloned and installed a fresh opam repo on my 
> ubuntu dev-box, and I've run:
>
> $ opam init mirage http://mirage.github.com/opam
> $ opam switch -alias xen 3.12.1+mirage-xen
>
> and everything runs fine.
>
> Could you have a look at any ocamlfind.env files you can find in ~/.opam/ ?
>
> I'm running some more tests, but I'm a bit puzzle by your issue. Maybe you can 
> try to repro it with OPAMDEBUG=1 and send me the execution trace ?
>
>
> > > > > I think it's high time we setup a little continuous build VM.  Thomas, is there 
> > > > > an easy way to iterate through every package and attempt a compilation? I could 
> > > > > do a big 'opam install `opam list`'-style command, but something that has 
> > > > > reasonable logging for failures would be useful.
> Completely agree, my tiny EC2 VM is not able to compile ocaml without crashing, 
> so if someone has a bigger build machine available, I would be happy to set-up 
> something there.
>
> you can run "opam install `opam list -short`" if you want to install all 
> packages.
>
> --
> Thomas