On Monday 16 Dec 2013 04:04:34 eroen wrote: > On Sun, 15 Dec 2013 17:37:53 +0100 > > Benjamin Block <b...@zlug.org> wrote: > > Most of the times, when some binary packages on my systems do cause > > something like this, then I just unemerge the package that keeps > > recompiling and emerge it again afterwards. This will cause the > > portage to drop the library-references in question and add new ones. > > > > So, this should do the trick: > > emerge -C app-antivirus/avast4workstation > > emerge -1 app-antivirus/avast4workstation > > This will make the message from portage and the old library version go > away, yes. It will also cause the program that used the library > (/opt/avast4workstation/bin/avastgui in OP's case) crash when you try > to run it, due to the old library version not being installed. > > The correct solution to this is to add the specific (old) version of the > library to the dependencies (in the ebuild) of the (binary) package that > uses it. This will prevent an upgrade that uninstalls the old library > version. Sometimes the maintainer of the library will add a slotted > version of it, so that non-binary users of it do not have to use the > outdated version. > > If the binary package is not an ebuild, you can manually add the newer > library version to package.mask, or make sure that the slot for the > older version is installed if the library is slotted. > > Better yet (in all cases), get a more recent version of the binary > package that is built against the newer version of the library. > Complain to the vendor if none is available :-) > > The preserve-libs feature in portage is intended to let things keep on > working short-term for source-distributed packages. In that case, the > currently installed program is linked against the old library version, > and when the program is rebuilt (with @preserved-rebuild) it will be > linked against the newer version.
Thank you for a detailed explanation, which makes sense to me. You are right, uninstalling, running @preserved-rebuild and reinstalling this package breaks the avastgui because of the missing libpangox-1.0.so.0 library. Thankfully, the command line function is unaffected. I wouldn't want to keep old libraries around unnecessarily, so I may have to chase the dev for this package and see if he's still interested to look after it. -- Regards, Mick
signature.asc
Description: This is a digitally signed message part.
