Re: [MirageOS-devel] mirage-clock-unix dependency problem

[Aaron Quamme <aaron.quamme@xxxxxxxxx>]

On 10/05/2014 04:48 PM, Anil Madhavapeddy wrote:
> [CCing the mirageos-devel list]
>
> On 5 Oct 2014, at 22:44, Aaron Quamme <aaron.quamme@xxxxxxxxx> wrote:
>
> > Hello,
> >
> > I'm encountering a problem when following the MirageOS hello world guide - when 
> > running `make depend' I get the error:
> >
> > The dependency mirage-types>=0.4.0 of package mirage-console-unix.1.0.0 is not 
> > available for your compiler or your OS.
> > 'opam install mirage-console-unix mirage-unix --verbose' failed.
> > Makefile:19: recipe for target 'depend' failed
> > make: *** [depend] Error 3
> >
> > Executing `opam list' reveals that I have mirage-types 1.2.0 installed, so this 
> > appears to be a bug.
> >
> > I'm running Debian jessie and using opam 1.1.1 with ocaml 4.01.0.
> >
> > If there's any other information I can provide, let me know. Thank you for any 
> > help you can provide.
> Do you have 'aspcud' installed on Jessie by any chance?  If not, could you try 
> installing it and then retrying this?  If that still fails, an issue on 
> https://github.com/ocaml/opam-repository with OPAMDEBUG=1 set in the 
> environment would be helpful in debugging the problem.
>
> -anil
I did not have 'aspcud', but installing it doesn't appear to be the 
silver bullet. I tried running 'make depend' again - it looks like opam 
is trying to install packages that I already have installed, which 
causes it to fail:
# W: Cannot find source file matching module 'sexplib_unix' in library 
sexplib_unix
# W: Cannot find source file matching module 'sexplib_num' in library 
sexplib_num
# W: Cannot find source file matching module 'sexplib' in library sexplib
# ocamlfind: Package sexplib_unix is already installed
#  - (file /home/aaron/.opam/system/lib/sexplib_unix/META already exists)
# E: Failure("Command ''/home/aaron/.opam/system/bin/ocamlfind' install 
sexplib_unix unix/lib/META _build/unix/lib/sexplib_unix.cmx 
_build/unix/lib/sexplib_unix.cmxs _build/unix/lib/sexplib_unix.a 
_build/unix/lib/sexplib_unix.cmxa _build/unix/lib/sexplib_unix.cma 
_build/unix/lib/sexplib_unix.cmi unix/lib/sexplib_unix_conv.ml' 
terminated with error code 2")
# make[1]: *** [install] Error 1

Now when I run 'mirage configure --unix', it appears that my 
installation of sexplib isn't detected:
Mirage      Using scanned config file: config.ml
Mirage      Processing: 
/home/aaron/coding/mirage/mirage-skeleton/console/config.ml
Mirage      => rm -rf 
/home/aaron/coding/mirage/mirage-skeleton/console/_build/config.*
Mirage      => cd /home/aaron/coding/mirage/mirage-skeleton/console && 
ocamlbuild -use-ocamlfind -tags annot,bin_annot -pkg mirage config.cmxs
Mirage       ocamlfind ocamldep -package mirage -modules config.ml > 
config.ml.depends
Mirage       + ocamlfind ocamldep -package mirage -modules config.ml > 
config.ml.depends
Mirage       ocamlfind: Package `sexplib' not found - required by `ipaddr'
Mirage       Command exited with code 2.
[ERROR]      The command "cd 
/home/aaron/coding/mirage/mirage-skeleton/console && ocamlbuild 
-use-ocamlfind -tags annot,bin_annot -pkg mirage config.cmxs" exited 
with code 10.
'opam list' shows that sexplib is in fact installed.

It appears that running 'mirage configure --unix' and then 'make depend' 
repeatedly make the problem worse - opam attempts to install more and 
more packages that are already present on my system.
I can certainly file a github issue on this, although I'm afraid it'll 
be an information dump, as I'm not sure what exactly is relevant and 
what isn't.
Aaron


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