Bug#1033617: libopenexr-dev: Cannot just upgrade libopenexr-dev to 3.1.5-4 because of file conflict with older version of libilmbase-dev

[Andreas Metzler]

On 2023-03-28 Felix Stupp <me+debian-bugs at banananet.work> wrote:
> Package: libopenexr-dev
> Version: 3.1.5-4
> Severity: serious
> Justification: Policy 7.4
> X-Debbugs-Cc: me+debian-bugs at banananet.work

> Dear Maintainer,

> I cannot upgrade this package from version 2.5.7-1 to version 3.1.5-4
> due to a file conflict with the package libilmbase-dev on version
> 2.5.4-1. I tried with apt & aptitude as well. Both want to replace
> libilmbase-dev with libopenexr-dev in a single execution of them, but
> fail to do that in a way that dpkg allows that (tries first to install
> the new package and then uninstall the old one).
> Currently I see no other solution than removing the old one first aside
> with all packages depending it on it, and then installing the new one
> with all packages which were removed before.
[...]

Hello,

I cannot reporoduce this from your description because the original
setup you started with

libopenexr-dev +  libopenexr25 2.5.7-1
libilmbase-dev + libilmbase25 2.5.4-1

is not installable, libopenexr25 2.5.7-1 depends on libilmbase25 (>= 2.5.7).

cu Andreas