[yocto] question about installing multiple versions of a single library

[Robert P. J. Day]

On Wed, 6 Aug 2014, Gary Thomas wrote:

> On 2014-08-06 10:20, Robert P. J. Day wrote:
> > On Wed, 6 Aug 2014, Paul Eggleton wrote:
> >
> > > Hi Robert,
> > >
> > > On Monday 04 August 2014 05:29:45 Rifenbark, Scott M wrote:
> > > > > -----Original Message-----
> > > > > From: Robert P. J. Day [mailto:rpjday at crashcourse.ca]
> > > > > Sent: Sunday, August 03, 2014 2:05 AM
> > > > > To: Rifenbark, Scott M
> > > > > Subject: question about installing multiple versions of a single
> > > > > library
> > > > >
> > > > >   sorry for the interruption, i'm reading dev manual here:
> > > > > http://www.yoctoproject.org/docs/latest/dev-manual/dev->
> > > > > >manual.html#installing-multiple-versions-of-the-same-library
> > > > >
> > > > > and the example used (clutter) doesn't even exist in oe-core with
> > > > > those
> > > > > version numbers, i was looking for another example that actually
> > > > > exists,
> > > > > didn't immediately see one.
> > > > >
> > > > >   more to the point, the version numbers used in those clutter recipe
> > > > >   files
> > > > >   look>
> > > > > weird:
> > > > >      clutter-1.6_1.6.20.bb
> > > > >      clutter-1.8_1.8.4.bb
> > > > >
> > > > > i'm not used to seeing recipe files that appear to combine a
> > > > > higher version number *and* what looks like a minor version
> > > > > number upgrade as well. do you know what's going on there? maybe
> > > > > that's not the best example for trying to explain this topic.
> > >
> > > The specific versions of clutter may no longer exist in the
> > > metadata, but we do still use this scheme for clutter recipes and
> > > others (gstreamer comes to mind). The point is you change PN to be
> > > version-specific - you have clutter-1.6 and clutter-1.8, such that
> > > you can depend on the specific version where needed.
> >
> >    ah, i see ... the software name is not simply "clutter", it is
> > "clutter-1.6" or "clutter-1.8". got it.
>
> The '_' in the recipe name is the key - everything to the left of
> it is the package name and the version is to the right.

  yes, i do feel silly about not having noticed that. go ahead ... rub
it in. :-)

rday

-- 

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Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
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