libvirt users - Aug 2014 - Re: Building virt-top to SLES 11 SP3

Hi all,

I was curious whether anyone has successfully built virt-top (version 1.0.8) on
SUSE SLES11 SP3.  SUSE's ocaml support is rather limited, so I've built
ocaml 4.00.1 from source and installed the necessary dependencies using Opam.

I'm still running into a compile error on virt_top.ml, line 697:
Error: This expression has type int -> D.typed_param list array
       but an expression was expected of type
         (string * D.typed_param_value) list array

As a frame of reference I was able to build virt-top 1.0.8 from source on a
Fedora Core 20 box with the necessary ocaml -devel RPMs installed (also ocaml
4.00.1), so I don't know if I'm running into other dependency issues or
something else.  The ocaml-libvirt package version 0.6.1.2 compiles
successfully, which suggests that SLES 11 SP3 has a sufficient version of
libvirt.

Thanks in advance,

    Chris

On 08/24/2014 10:59 PM, cjlove@san.rr.com wrote:
> Hi all,
[can you configure your mailer to wrap long lines?]
> 
> I was curious whether anyone has successfully built virt-top (version
1.0.8) on SUSE SLES11 SP3.
As mentioned on http://people.redhat.com/~rjones/virt-top/, you might
get a better response by asking the virt-tools list (added in cc).
>  SUSE's ocaml support is rather limited, so I've built ocaml 4.00.1
from source and installed the necessary dependencies using
Opam.
> 
> I'm still running into a compile error on virt_top.ml, line 697:
> Error: This expression has type int -> D.typed_param list array
>        but an expression was expected of type
>          (string * D.typed_param_value) list array
> 
> As a frame of reference I was able to build virt-top 1.0.8 from source on a
Fedora Core 20 box with the necessary ocaml -devel RPMs installed (also ocaml
4.00.1), so I don't know if I'm running into other dependency issues or
something else.  The ocaml-libvirt package version 0.6.1.2 compiles
successfully, which suggests that SLES 11 SP3 has a sufficient version of
libvirt.
> 
> Thanks in advance,
> 
>     Chris
-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

On Mon, Aug 25, 2014 at 01:25:33PM -0600, Eric Blake
wrote:
> On 08/24/2014 10:59 PM, cjlove@san.rr.com wrote:
> > Hi all,
> 
> [can you configure your mailer to wrap long lines?]
> 
> > 
> > I was curious whether anyone has successfully built virt-top (version
1.0.8) on SUSE SLES11 SP3.
> 
> As mentioned on http://people.redhat.com/~rjones/virt-top/, you might
> get a better response by asking the virt-tools list (added in cc).
> 
> >  SUSE's ocaml support is rather limited, so I've built ocaml
4.00.1
> from source and installed the necessary dependencies using Opam.
> > 
> > I'm still running into a compile error on virt_top.ml, line 697:
> > Error: This expression has type int -> D.typed_param list array
> >        but an expression was expected of type
> >          (string * D.typed_param_value) list array
[Thanks Eric]

This is not pretty, but what happened is that Hu Tao from Fujitsu and
Dave Scott from Citrix added a bunch of new features to
ocaml-libvirt[1].

One of these new features changes the API for an existing function.
However there is no released tarball containing this change -- the
ocaml-libvirt 0.6.1.2 in Fedora is patched.

That causes the above error when you use new virt-top with
ocaml-libvirt 0.6.1.2 tarball without this patch.

I have just released ocaml-libvirt 0.6.1.4 which contains this patch.
Unfortunately I cannot upload it to the website[2] for some reason
right now, so I have put it here[3] instead temporarily.

You will need to persuade the OPAM developers to move to this version.

Rich.

[1] http://libvirt.org/ocaml/
[2] http://libvirt.org/sources/ocaml/
[3] http://oirase.annexia.org/tmp/ocaml-libvirt-0.6.1.4.tar.gz

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
virt-builder quickly builds VMs from scratch
http://libguestfs.org/virt-builder.1.html