[lttng-dev] Odd dependency for lttng-ust

[dgoulet@efficios.com (David Goulet)]

Also, I do still forget it still today but after installing URCU and UST:

$ sudo ldconfig

:)

David

Thibault, Daniel:
> -----Message d'origine-----
> De : Mathieu Desnoyers [mailto:mathieu.desnoyers at efficios.com] 
> Envoy? : 21 janvier 2013 10:30
> 
> No. Distribution packages usually lag behind the project upstream.
> Ubuntu 12.04 has been released last year, and their policy don't allow them to update the packages within this specific distribution version.
> 
> This is why you run into trouble when you try to mix distribution packages (from last year) with the current development head.
> 
> Don't mix packages from distributions with packages built from sources when version dependencies don't match. All the required dependency information is found in the README files of each project.
> 
> Mathieu
> -----Fin du message d'origine-----
> 
> But I'm not mixing old packages with new: I tried fetching everything from git.lttng.org.  The README for lttng-ust reads in part:
> 
> PREREQUISITES:
>   - liburcu
>     Userspace RCU library, by Mathieu Desnoyers and Paul E. McKenney
>     -> This release depends on liburcu v0.7.2
>       * Debian/Ubuntu package: liburcu-dev
>       * Website:  http://lttng.org/urcu
>       * Releases: http://lttng.org/files/urcu
>       * GitWeb:   http://lttng.org/cgi-bin/gitweb.cgi?p=userspace-rcu.git;a=summary
>       * Git:      git://lttng.org/userspace-rcu.git
> 
> Doesn't this say that I can get the required liburcu from git.lttng.org's userspace-rcu?  Could it be version 0.7.6 is not retro-compatible with 0.7.2 (that is to say, lttng-ust requires 0.7.2, and 0.7.2 only, not "0.7.2 or later")?
> 
> Daniel U. Thibault
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