True, I didn't mean that the entire binary is the same, but since most of the compilation units remain untouched, they are compiled to the same machine code. Fixing a bug or introducing a small new change is one thing, but compiling the entire codebase with a different compiler would change everything

There are a lot of potential solutions and tbh changing my host OS didn't occur to me. I don't think I would do it though, as the current plan is to recompile the desired version with a modern gcc. It's one of those tasks that stay on the backlog though..