Upgrading libpng: shall we move to 1.4.x or 1.5.x?

Peter Robinson pbrobinson at gmail.com
Mon Dec 5 17:44:12 UTC 2011

On Mon, Dec 5, 2011 at 5:41 PM, Adam Jackson <ajax at redhat.com> wrote:
> On Fri, 2011-11-04 at 13:12 -0400, Tom Lane wrote:
>> I did test rebuilds in mock of all rawhide packages that are reported to
>> be dependent on libpng.  Out of 964 packages with dependencies on libpng,
>> we have:
>> Packages that rebuilt successfully with 1.5   658
>> Packages that FTBFS for non-libpng reasons    186
>> Packages that rebuilt with 1.4, but not 1.5   74
>> Packages that need help even with 1.4         46
> I've been doing driveby rebuilds for some of these that happen to have
> been in a default install on my machine, but we still have a huge pile
> of things built against the old libpng in rawhide:
> [ajax at f17 cairomm]$ repoquery --whatrequires libpng-compat | wc -l
> 786
> Does anyone object to me just kicking a mass rebuild for this?  I'll
> happily follow up with the list of build failures.

Go for it, I think it makes sense. For those that don't support 1.5
they can stay against the compat in the mean time.


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