Bug#918748: nmu: kadu_4.1-1.1

[Boris Pek <tehnick@debian.org>]

>>  This is my first binNMUs, so please correct me if I am doing anything wrong.
>
> qxmpp didn't bump the SONAME. So why does kadu need a rebuild?

Library API was not changed, so where were no reasons to bump SOVERSION.
But it looks what there are some changes in ABI which cause to segmentation
fault during connection to XMPP network (after entering of password):

(gdb) bt full
#0  0x00007ffff617ed98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007ffff618e7e0 in QString::compare_helper(QChar const*, int, char const*, int, Qt::CaseSensitivity) ()
    at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fffe07f5fb5 in QXmppRosterManager::handleStanza(QDomElement const&) ()
    at /usr/lib/x86_64-linux-gnu/libqxmpp.so.0
#3  0x00007fffe07d8661 in QXmppClient::_q_elementReceived(QDomElement const&, bool&) ()
    at /usr/lib/x86_64-linux-gnu/libqxmpp.so.0
#4  0x00007fffe0820545 in  () at /usr/lib/x86_64-linux-gnu/libqxmpp.so.0
#5  0x00007ffff62e36cb in QMetaObject::activate(QObject*, int, int, void**) ()
    at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
...

After rebuilding of kadu with new qxmpp it works fine.

Best regards,
Boris