In the case of the team moving to a new compiler, what are you suggesting? We can’t merge in use of a newer compiler until there are zero warnings in all our products? Who “fixes” all those code bases? Who touches the pieces of code that were last touched 5 or 10 years ago?
Various solutions are possible, including the obvious one of just removing -Werror. But the point is that this decision should be made by the team that owns/maintains the code, not by some centralized devops group.
