Did that as a work project on Unix. My peer had a similar porting project.

I thought I was screwed: 20-year-old c-based backup tool. His was easy: this perl web app is installing on a new box because its old one is being lifecycled.

Actual: after 3 weeks of dependency hell he tossed it all and rewrote the thing in c from scratch overnight. My c project was make;make-install with no errors.

I think it’s been recompiled a few times since then, without any code changes.