cvs commit: src/usr.sbin/config configvers.h mkmakefile.c src/sys/conf Makefile.alpha Makefile.amd64 Makefile.arm Makefile.i386 Makefile.ia64 Makefile.pc98 Makefile.powerpc Makefile.sparc64 files files.alpha files.amd64 files.i386 ...

[Ruslan Ermilov]

On Mon, Nov 28, 2005 at 11:59:18AM -0500, John Baldwin wrote:
> On Monday 28 November 2005 11:24 am, Ruslan Ermilov wrote:
> > On Mon, Nov 28, 2005 at 08:53:32AM -0500, John Baldwin wrote:
> > > On Sunday 27 November 2005 06:38 pm, M. Warner Losh wrote:
> > > > How does this look to you?
> > >
> > > What is the point of the minor version number then if it is never
> > > checked?  I think we just should not do bumps for changes to config that
> > > allow old files to still work.  IOW, the most recent bump should simply
> > > be reverted.  In practice I don't think many folks other than developers
> > > ever end up with a config that is out of date with the kernel sources.
> >
> > The old config(8) against new files should also be considered.
> > Otherwise, in this case, if it's reverted, how can I express
> > that new sys/conf/files* require a new config(8)?  The old
> > config(8) will _appear_ to work with them, but will produce
> > incorrect output (exactly the problem config version attempts
> > to address).  Specifically, "|" will be treated as a device.
> 
> Hmm, that change might actually warrant a bump then.  Things like the 
> 'machine' change would not warrant a bump however.
> 
Indeed, I didn't bump it for the "machine" change.  The idea
Warner attempts to implement is to bump a major whenever a
backwards incompatible change is made, and bump a minor when
a change is made such that a backward compatibility is not
affected.  This would allow for config versions >= the
required version to work.  I'd then bump the config version
along with the change, and bump the required version in
makefiles when doing a change to conf/files* (in this
particular case).


Cheers,
-- 
Ruslan Ermilov
ru at FreeBSD.org
FreeBSD committer
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