Re: Simpler example of pathological behavior of directory caching

[Paul Smith]

On Fri, 2016-10-07 at 00:10 +0000, Martin Dorey wrote:
> ... then I failed to find any source that invalidates that cache, be
> it the whole cache, just one directory or one entry in that directory.

I'd have to reread that code to be sure but I don't think that's how it
works.  I think that what's supposed to happen is that when a target is
built, that target is explicitly added to the cache by GNU make, not
that the cache is invalidated and reread from scratch.