This is just a heads-up that GCC 14 is going to add a
-Wreturn-mismatch warning that has been split from the more fuzzy
The plan is to turn
-Wreturn-mismatch into an error by default for GCC 14, while leaving the rest of
-Wreturn-type alone. This sort of matches Clang’s current behavior, which treats only those aspects of
-Wreturn-type as errors by default.