EPEL 7 - OpenImageIO downgrade

[Richard Shaw]

During a needed update to pugixml[1] I inadvertently upgraded OpenImageIO
from 1.4.x to 1.5.x and broke soname/ABI compatibility[2].

I would like to bump the Epoch of OpenImageIO on EL 7 and downgrade to
1.4.16 to fix this but it will require a rebuild of Blender which I can
take care of.

Any objections?

Thanks,
Richard

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1347390
[2] https://bugzilla.redhat.com/show_bug.cgi?id=1406976

[Simone Caronni]

Hi,

On Tue, Feb 21, 2017 at 5:35 PM, Richard Shaw  wrote:
> I would like to bump the Epoch of OpenImageIO on EL 7 and downgrade to
> 1.4.16 to fix this but it will require a rebuild of Blender which I can
> take care of.
>
> Any objections?

no objections from me, but why bumping the Epoch to downgrade the package
would actually need a Blender rebuild? The "newly-epoched" package would
simply fill again the gap.

Thanks & regards,
--Simone

[Richard Shaw]

On Tue, Feb 21, 2017 at 10:48 AM, Simone Caronni 
wrote:
> Hi,
>
> On Tue, Feb 21, 2017 at 5:35 PM, Richard Shaw 
> wrote:
> > I would like to bump the Epoch of OpenImageIO on EL 7 and downgrade to
> > 1.4.16 to fix this but it will require a rebuild of Blender which I can
> > take care of.
> >
> > Any objections?
>
> no objections from me, but why bumping the Epoch to downgrade the package
> would actually need a Blender rebuild? The "newly-epoched" package would
> simply fill again the gap.

The soname will change from libOpenImageIO.so.1.5 to libOpenImageIO.so.1.4
but a simple rebuild should take care of it.

Thanks,
Richard

[Simone Caronni]

On Tue, Feb 21, 2017 at 5:56 PM, Richard Shaw  wrote:
> On Tue, Feb 21, 2017 at 5:35 PM, Richard Shaw
> > wrote:
> > > I would like to bump the Epoch of OpenImageIO on EL 7 and downgrade to
> > > 1.4.16 to fix this but it will require a rebuild of Blender which I can
> > > take care of.
> > >
> > > Any objections?
> >
> > no objections from me, but why bumping the Epoch to downgrade the package
> > would actually need a Blender rebuild? The "newly-epoched" package would
> > simply fill again the gap.
>
> The soname will change from libOpenImageIO.so.1.5 to libOpenImageIO.so.1.4
> but a simple rebuild should take care of it.

Sorry, but I'm asking again.

If the library was libOpenImageIO.so.1.4 and by mistake you updated it to
libOpenImageIO.so.1.5, then bumping the Epoch to revert it, brings it back
to libOpenImageIO.so.1.4. So there is no need to rebuild anything. Correct?

Regards,
--Simone

[Richard Shaw]

On Tue, Feb 21, 2017 at 11:08 AM, Simone Caronni 
wrote:
> On Tue, Feb 21, 2017 at 5:56 PM, Richard Shaw 
> wrote:
> > On Tue, Feb 21, 2017 at 5:35 PM, Richard Shaw
> > > wrote:
> > > > I would like to bump the Epoch of OpenImageIO on EL 7 and downgrade to
> > > > 1.4.16 to fix this but it will require a rebuild of Blender which I can
> > > > take care of.
> > > >
> > > > Any objections?
> > >
> > > no objections from me, but why bumping the Epoch to downgrade the
> > > package would actually need a Blender rebuild? The "newly-epoched" package
> > > would simply fill again the gap.
> >
> > The soname will change from libOpenImageIO.so.1.5 to
> > libOpenImageIO.so.1.4 but a simple rebuild should take care of it.
>
> Sorry, but I'm asking again.
>
> If the library was libOpenImageIO.so.1.4 and by mistake you updated it to
> libOpenImageIO.so.1.5, then bumping the Epoch to revert it, brings it back
> to libOpenImageIO.so.1.4. So there is no need to rebuild anything. Correct?

I see what you're saying now. I'm not sure if blender was ever rebuilt to
use the new package. I'll check first.

Thanks,
Richard