> > I think it's better that each Command in the source tree
> > (e.g. /usr/bin/make) is also maintained by versioning like "pkgsrc"
> > commands and given a new version number if it changes its
> > behavier. How do you think?
> Depends how detailed you want the version numbers to be.  ident gives the 
> version of every file statically linked into the binary.  however that might 
> be a bit too detailed?

What I though was that, putting a command a "version", we can know
functionalities provided by the command on the fly.

And, versioning may be a good incentive for in-source-tree commands'
developpers. :-)

Masao