I've seen plenty of times how libraries compile just fine on less popular platforms and environments but then cause crashes at start or not link at all and how

I've seen plenty of times how libraries compile just fine on less popular platforms and environments but then cause crashes at start or not link at all and how much time it wastes dealing with this. I thought these problems were widely known, that's why anyone who cares about porting tries to make self-contained single-sourced libraries.