Guru: Are Binding Directories A Shortcut Or A Source Of Chaos?

February 16, 2026 Gregory Simmons

Ask any IBM i developer about binding directories, and you will usually get one of two reactions: A grateful nod or an eye roll. For some, binding directories are a lifesaver, making compile commands cleaner and projects easier to manage. For others, they are a ticking time bomb, introducing hidden dependencies that come back to haunt you months later.

I have seen both sides. In fact, one of the worst compile-day disasters I’ve witnessed started with a well-meaning developer adding a single service program to a global binding directory. Suddenly, half the shop’s programs were linking against the wrong version …