Feral pigs are smaller and leaner than domesticated ones. Even so, we process using the same time/temperature formula we use for pork.
This is a utilization of two recipes already posted on this site--Stovetop Espagnole sauce and JerkiTerrAsian Cool Rub.
Big box stores offer discounted primal cuts of meat, among them whole pork loins. This article explains how to make the most of the savings.