I've tried to not package libsmbclient and libwbclient so that they don't conflict with installed version from Samba3. If you have Gnome or KDE then half of the system depends on libsmbclient or libwbclient.
This does not work as waf uses symbol versions and autoconf doesn't. There is no change in the so version number.
This needs to be fixed. I dunno if you want to increase the so version number or disable it for libsmbclient or libwbclient.
I think the right thing would be to be able to build with system libsmbclient and libwbclient like tdb, talloc, ...
I'm working on support to use system libsmbclient and libwbclient.
We have support to build against system libsmbclient and libwbclient now. This fixes packaging issues in distributions which ship Samba3 and Samba4 at the same time. This can be removed as soon as there is only Samba4.
This has been sorted out by Andrew and me. Closing as fixed.