Gabriel Dos Reis via Modules <modules_at_[hidden]> writes:

> By the definitions, they are not modules. They don't have names other
> than the name of the header or header file. They don't provide anything
> other than their content as a whole.

They may not look like modules from the language POV, but for build
mechanics they look very much like real modules. Worse, in fact,
since their BMIs have to be available earlier.