etc/Makefile cleanup

[Matthias Schmidt]

* Simon 'corecode' Schubert wrote:
> Matthias Schmidt wrote:
> >Sascha suggested to install the FilesToRemove.inc with installworld to a
> >temporary location and have "make upgrade" use this file instead of the
> >one in the source tree.
> 
> That's good.  Maybe make it even more sophisticated and install the list of 
> files to be removed.  Then after make upgrade, install this list as "files that 
> were removed".  Next time, we'll only have to remove the files that were added 
> (the delta), instead of blindly removing all files, even though they don't 
> exist anymore.

Updated version with seatbelts for the user:

http://leaf.dragonflybsd.org/~matthias/etc_makefile_update.diff