Well I was hinting at it, or the other similar systems (gn, buck, pants, etc.) - you end up needing a language-agnostic (or rather say, language-diverse system)

Well I was hinting at it, or the other similar systems (gn, buck, pants, etc.) - you end up needing a language-agnostic (or rather say, language-diverse system) that understand how these compilers / runtimes express output artifacts and actions. It's not always that easy (e.g. "virtual_includes" in bazel and `#pragma once` do not work well, but it's small price to pay (e.g. go back to #ifndef MY_HEADER_H #define it)).