force libtool to leave -lodbc alone and not replace it by /usr/lib/libodbc.so since that drives the dynamic detection of platform dependant libodbc.so nuts
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@7547 d0543943-73ff-0310-b7d9-9358b9ac24b2
