[csw-maintainers] Update of fftw

[Dagobert Michelsen]

Hi,

as it seems of general interest here the repost on-list:

Am 02.11.2009 um 17:51 schrieb Maciej (Matchek) Blizinski:
> On Mon, Nov 2, 2009 at 4:39 PM, Dagobert Michelsen <dam at opencsw.org>  
> wrote:
>>> Von: Dagobert Michelsen <dam at opencsw.org>
>>> Datum: 2. November 2009 17:00:05 MEZ
>>> An: Joshua Buysse <buysse at umn.edu>, Josh Buysse <buysse at opencsw.org>
>>> Kopie: Philip Brown <phil at bolthole.com>
>>> Betreff: Update of fftw
>>>
>>> Hi Joshua,
>>>
>>> I have been playing around with fftw and made an updated package
>>> for fftw including the 3.2.2 version. Usually it is policy to
>>> add older libraries to the main package, but we already have the
>>> fftw2 package. So I guess it will be best to add an fftw3 package
>>> or should we go integrating both versioned libs in a main CSWfftw
>>> package?
>
> My first thought is that it's better to have one fftw package,
> including all the versions.
>
> Gentoo has a nice was of going around this. They have something called
> 'slots'. If multiple major versions of a package need to coexist, they
> occupy numbered slots.  For instance, fftw-1.x would be assigned to
> slot 0, fftw-2.x to slot 1 and fftw-3.x to slot 2. We don't have the
> notion of slots, but we can merge multiple library versions in one
> package. I had to wrap my mind around version modulations in GAR, but
> it looks fairly easy now. (Until I run into problems again, that is.
> :-) )
>
> I would be for providing one package with all the versions.
>
> Maciej
>
> P.S. Dago, you can loop this e-mail in with the rest of the discussion
> participants.


Best regards

   -- Dago