r1318: Install libsmbclient into $(LIBDIR), not into hardcoded ${prefix}/lib. This
helps amd64 systems with /lib and /lib64 and an explicit configure --libdir
setting.
Thanks to Bjoern Jacke <bj@sernet.de>
Volker
(This used to be commit cc1881c143b16fa8f0abd80190877d0018bc282e)