databases/php5-odbc vs. libiodbc

[Kyryll A Mirnenko aka Mirya]

  Currently the databases/php5-odbc PHP extension is hardcoded to be compiled 
with unixODBC backend, so the users that have libiodbc installed (as a 
dependency of kde4 ports, for ex.) can't installed the first 'cause those two 
ODBC ports conflict with each other.
  The php-odbc configure script however says (./configure --help) it can be 
compiled with iODBC support (--with-iodbc=/usr/local), but for some reason 
simply replacing the configure script arguments for the port (with libiodbc 
installed from ports) result in nothing being done: the configure script 
creates the Makefile with empty target, so nothing is built actually.
  Did anyone have success before with building php5-odbc lniked to iodbc 
backend?