Since 7.0 will break a lot of things for FHS, I suggest you break one more 
thing and consider creating /etc/samba directory.

Right now we have in /etc: smb.conf, lmhost, codepages/, smbusers,  
MACHINE.SID.

If you use encrypted password there is the smbpasswd file.

If you use the printer downloading feature for win9x machines you have to 
decide where to put the printers.def file.

Then, if someone need to use the include directive in smb.conf, there are 
other files.

Then,  with the next samba versions, very likely we'll have other 
maps/files to handle the new nt stuff.

I think there's no reason to clutter /etc with so many files from one 
package.

Once I talked about this on the samba list, and the only problem was "all 
are used to /etc/smb.conf, so you'll break things".


I suggest
  --libdir=/etc/samba   --with-privatedir=/etc/samba/private
or just 
  --libdir=/etc/samba   --with-privatedir=/etc/samba

If you do this you'll have to adjust the default smb.conf file accordingly 
(all /etc examples to /etc/samba):

=============
;  smb passwd file = /etc/smbpasswd
;  username map = /etc/smbusers
 
# Using the following line enables you to customise your configuration
# on a per machine basis. The %m gets replaced with the netbios name
# of the machine that is connecting
;   include = /etc/smb.conf.%m
=============