Re: question about installing multiple versions of a single library

Re: question about installing multiple versions of a single library

[Rifenbark, Scott M]

I am putting this out on the list as I have no idea.  Maybe someone else can explain this one. 

Scott

>-----Original Message-----
>From: Robert P. J. Day [mailto:rpjday@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.
>
>rday

Re: question about installing multiple versions of a single library

[Paul Eggleton]

Hi Robert,

On Monday 04 August 2014 05:29:45 Rifenbark, Scott M wrote:
> >-----Original Message-----
> >From: Robert P. J. Day [mailto:rpjday@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.

To be honest I think this section outlines the use case fairly well. 
Suggestions on how we could improve the explanation would be welcome though.

Cheers,
Paul




-- 

Paul Eggleton
Intel Open Source Technology Centre

Re: question about installing multiple versions of a single library

[Robert P. J. Day]

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@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.

rday

--

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

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

Re: question about installing multiple versions of a single library

[Gary Thomas]

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@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.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: 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@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

-- 

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

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