dba,dbm, db2,db3

Hello, Trying to install php 4.0.6 with dba,gdbm,dbm,db2 and db3 supports to test differents libs I made. I use libdb 3.3 from bekerley, gdbm 1.8.0. ... --enable-dba --with-dbm="/usr/local" --with-db2="/usr/local" --with-db3="/usr/local" --with-gdbm="/usr/local" ... got ... checking for cybermut support... no checking whether to include old xDBM support... no checking whether to enable DBA... yes checking for gdbm_open in -lgdbm... yes checking for GDBM support... yes checking for NDBM support... no checking for db_appinit in -ldb... no checking for db_appinit in -ldb2... no checking for db_appinit in -lc... no configure: error: cannot find necessary library Have I to use a special version to use these function ? or special configure params ? All library are loaded by ldconfig and are in the lib path. thank's in advance. pa