Slackware current "error while loading shared libraries: libicui18n.so.61"
 

Hi all,

I upgraded my Slackware64-current today and a couple of Qt applications won't launch anymore.
The error is
LibreOffice
Qdirstat
Qt designer, assistent, linquist etc.

also won't launch anymore. So did the newest current update broke something with Qt?

Warned about in the ChangeLog. After an update to icu4c many out-of-tree packages will break until recompiled.

Thank you, i should have read it better. My fault! ;)

Last I checked, Alien Bob's Lua package was another one. Took me forever to realize why MPV wasn't working until I realized that Lua was broken.

Yeah, that also affects Teamviewer, GUI does not start.

icu4c is a good library to have this problem with, because it allows programs to link against more than one version of the library. This is because by default it mangles its symbols with a major/minor version number, so avoiding symbol clashes between old and new versions. See http://userguide.icu-project.org/des...-Level-Library under the heading "Linking against multiple versions of ICU4C" if you are interested. (Most libraries do not allow programs to link against multiple versions of the library at the same time.)

So what you need to do is keep copies of libicudata.so.61, libicui18n.so.61, libicuio.so.61, libicutest.so.61, libicutu.so.61 and libicuuc.so.61 from icu4c-61.1-i586-2.txz or icu4c-61.1-x86_64-2.txz (discard the rest), and put them in a icu4c-compat package which contains the shared libraries for all the versions of icu4c that you have things linking against. That has worked for me: although I don't use KDE/plasma I do have gnucash installed which links against both my own webkit package and slackware's boost package, which in turn link against icu4c-61 and icu4c-63 respectively.

Thx, will try it. Now I'm halfway into recompiling qt5 with no guarantee of success; definitely not my preferred afternoon activity.

Thanks chrissVV! Learn something new every day!

I wanted to use alienbob's VLC package today for some video work and your guidance/reminder worked for me. I put together an x86_64 icu4c-compat package for those who might want to go this route until they get their packages rebuilt.

https://www.go4it2day.com/downloads/...-1_chuck56.tgz

md5sum: 232d91498b2ba37071fbed6e4d8e8da7

Enjoy!

By the way, if you want old versions of things this is a good resource: http://slackmirror.cbpf.br/pub/slack...nt/slackware64 (and the equivalent for slackware-current).

Correct way , is donwload de *.slackbuild script and compile again your broken packages.

if the broken package are from alienb0b , as example "qbittorrent" , ...then..

-->>>>> http://www.slackware.com/~alien/slac...torrent/build/

Or wait for new package.

Mantaining "old" versions of libs/packages are not the correct way.