Source tree has many empty directories?

[Ian Lepore]

On Tue, 2019-09-10 at 21:41 +0200, Dimitry Andric wrote:
> On 10 Sep 2019, at 20:14, Ian Lepore <ian at FreeBSD.org> wrote:
> > 
> > On Tue, 2019-09-10 at 11:01 -0600, Warner Losh wrote:
> > > However, please do *NOT* remove the sys/*/compile directories.
> > > 
> > > Warner
> > 
> > Uhhh... that's interesting.  I just nuked one of those on my system
> > yesterday, because it had been hanging around since 2013 and I had no
> > idea what was -- I just assumed the build machinery created it because
> > I had accidentally done a make in a wrong directory once.
> > 
> > So what are those directories about?  I'm not used to seeing mystery
> > directories appear inside a source tree.
> 
> There's not much mystery to be found.  Subversion does not warn you when you
> remove the last files from a directory, and it also does not automatically
> remove such empty directories, like Git.  Hence, those directories tend to
> stick around, because every simply forgets about them.
> 
> With regards to those empty directories under contrib/llvm, those were actually
> imported from upstream.  But since the llvm project will switch to Git soon,
> this problem will automagically disappear. :-)
> 
> -Dimitry
> 

I was referring specifically to the sys/*/compile directories Warner
mentioned.

-- Ian