[collectd] Varnish plugin

[Florian Forster]

Hi Marc,

On Tue, Jun 08, 2010 at 03:08:22PM +0200, Marc Fournier wrote:
> /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libvarnishapi.so: undefined reference to `VRE_compile'
> /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libvarnishapi.so: undefined reference to `VRE_exec'

this looks precisely like the problem on Debian. “VRE_exec” is available
from "libvarnish", so the library is missing that dependency.

> /usr/lib64/libvarnishapi.so:
>         libc.so.6 => /lib64/libc.so.6 (0x0000003ebb200000)
>         /lib64/ld-linux-x86-64.so.2 (0x0000003ebae00000)

As I though: "libvarnishapi" is not linked against "libvarnish".

> As debian squeeze ships varnish 2.1 too, I'm wondering if the problem
> wouldn't be in varnish 2.1 itself, not in the way the distros package
> varnish ?

Yeah, I just confirmed that by looking at the current Varnish SVN trunk.

> >   - Create the required symlinks by hand:
> >   
> >     /usr/lib # ln -s libvarnish.so.1 libvarnish.so
> >     /usr/lib # ln -s libvarnishapi.so.1 libvarnish.so
> 
> You probably ment:
>       /usr/lib # ln -s libvarnishapi.so.1 libvarnishapi.so

Yeah, that's a typo. Sorry.

> I suppose this must also be followed by a "ldconfig" run ?

Worked for me without; YMMV.

> /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libvarnish.so: undefined reference to `strlcpy'

That's new. I thought the GNU libc did implement "strlcpy", too..?

> readelf shows that /usr/lib/libvarnish.so has a reference to strlcpy
> but /usr/lib/libvarnishapi.so doesn't. Maybe adding -lvarnish finally
> isn't a good idea ?

"libvarnish" is needed for the "VRE_exec" and "VRE_compile" symbols, so
you can't just leave that away.

Regards,
—octo
-- 
Florian octo Forster
Hacker in training
GnuPG: 0x91523C3D
http://verplant.org/
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