[Pkg-octave-devel] Multi-archifying Octave

Sébastien Villemot sebastien.villemot at ens.fr
Sat Feb 25 09:47:21 UTC 2012

Rafael Laboissiere <rafael at laboissiere.net> writes:

> * Sébastien Villemot <sebastien.villemot at ens.fr> [2012-02-24 21:37]:
>> The only potential problem that I see is that Octave already uses some
>> triplets under /usr/lib, which in addition happen to be different from
>> the Debian triplets. So we would end up with something like:
>>  /usr/lib/x86_64-linux-gnu/octave/3.6.1/oct/x86_64-pc-linux-gnu/svd.oct
>>  /usr/lib/x86_64-linux-gnu/octave/packages/3.6.1/optim-1.0.17/x86_64-pc-linux-gnu-api-v48+/
>> Note that there are two triplets in the paths.
>> Functionally this is not a problem, but it is a little ugly, since
>> there is some sort of duplication.
>> My question is: do you think it is desirable and, if yes, feasible to
>> remove the Octave-triplet from those paths?
> I did not really follow the multi-arch discussison, but it seems to me
> that it only regards the location of the shared libraries loaded by the
> system loader (/lib/ld-linux.so.*).  I may be wrong, but my guess is that
> the files under /usr/lib/octave/ are not concerned, in particular because
> the architecture-dependent *.oct files are already under the appropriate
> triplet, as you mentioned above.

If you look at /usr/lib/<triplet> on your system (testing or unstable),
you will see that it contains already a lot of libraries and
package-specific subdirectories.

Also, the changelog of debhelper between compat levels 8 and 9 contains:

 Multiarch support. In particular, dh_auto_configure passes multiarch
 directories to autoconf in --libdir and --libexecdir.

So by default debhelper 9 will put everything under /usr/lib/<triplet>,
both Octave dynamic libraries and everything else that used to go in

Therefore I am reasonably confident about what I said in my previous
email. But we can still choose to ignore multi-arch at this stage, it is
not yet a release-critical issue.


Sébastien Villemot
Researcher in Economics & Debian Maintainer
Phone: +33-1-40-77-84-04 - GPG Key: 4096R/381A7594
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