BTW -Wall doesn't give you all warnings. It gives you a specific set, which will never change because of all the legacy codebases using -Wall that Clang doesn't

BTW -Wall doesn't give you all warnings. It gives you a specific set, which will never change because of all the legacy codebases using -Wall that Clang doesn't want to cause problems with when introducing new diagnostics. The flag that really gets you all of the diagnostics is -Weverything.