Not to mention the whacky preprocessor as a whole... I would say includes/standard library/compilers going crazy on UB is part of the infrastructure or ecosyst

Not to mention the whacky preprocessor as a whole... I would say includes/standard library/compilers going crazy on UB is part of the infrastructure or ecosystem around the language and not the language itself. And I agree absolutely, while C the language is beautiful, the infra around it is atrocious.