I only had a partial backup of the original assembly. It turned out it was slightly out of date compared to the shipped binary which is archived on various scene servers. The target for the agent was for the build to be byte identical with the scene archive which did necessitate a few macros to coerce GNU as to do what DevPac would do.

The additions the agent identified vaguely tickled my memory of things I had fixed but this was something I originally wrote when I was a teenager in the 90s 😅