s4 master and ctdb

[Taylor, Jonn]

I am trying to build s4 with ctdb support. Source is at /usr.src/ctdb 
and /usr/src/samba-master CentOS 6.3 x86_64.

Did normal build on ctdb and this is what I used to configure s4.

./configure.developer --with-cluster-support --with-ctdb-dir=/usr/src/ctdb

and this is the output

Checking for header ctdb.h : not found
building without cluster support: ctdb.h is required for cluster support

locate ctdb.h
/usr/local/include/ctdb.h
/usr/src/ctdb/ib/ibw_ctdb.h
/usr/src/ctdb/include/ctdb.h
/usr/src/samba-master/ctdb/include/ctdb.h
/usr/src/samba-master/source3/lib/dbwrap/dbwrap_ctdb.h


What else did I miss???

Jonn