Install the Oracle Instant Client libraries in to the DCO directory.
cd <install_dir>/DCO-15_0/lib rm libclntsh.so ln -s libclntsh.so.10.1 libclntsh.so
cd <install_dir>/DCO-15_0/lib cp <tempdir>/instantclient_10_2/*.
where tempdir is the directory to which you extracted the Oracle Instant Client libraries.