By the way, I think that the way I fixed the problem is not the good one, it seems to me that because of the failure of the upgrade just before the clean-up, there were still old versions of the libs in /usr/local/lib, and thus ldconfig was pointing to those old versions instead of the correct ones.
So the change I made is sort of a work around, but removing the libs in /usr/local/lib should do the same without preventing people to install new versions of some lib in that folder...
Here are the files, hope it may help.
By the way, I think that the way I fixed the problem is not the good one, it seems to me that because of the failure of the upgrade just before the clean-up, there were still old versions of the libs in /usr/local/lib, and thus ldconfig was pointing to those old versions instead of the correct ones.
So the change I made is sort of a work around, but removing the libs in /usr/local/lib should do the same without preventing people to install new versions of some lib in that folder...
Regards
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Z.