Re: cost of -MP

[Noel Yap]

Boris Kolpackov wrote:

> Noel Yap <address@hidden> writes:
> > Can you elaborate on what you mean by "up-to-date build" below?
>
> It means that everything is up-to-date. When you run make on such a build
> no files change and make happily says that nothing needs to be done. That's
> what you usually get when you run make second time on the same build.

OK, in this case then, the dependency files should have no empty targets for 
header files that don't exist.  Is this correct?

Thanks,
Noel