Also download and install the instantclient and the relevant devel package. You can download the same from the oracle site.
Now go to the directory where you extracted tora.
Search for BUILT_SOURCES in that file and add moc_toawr.cpp in that section. This is what was required for tora version 2.3.1, not sure if you would need that…But there would be no harm in adding that anyways 🙂