Re: Patchkits

[Richard Wackerbarth]

On Tue, 25 Apr 2000, Kris Kennaway wrote:
> On Tue, 25 Apr 2000, Wilko Bulte wrote:
> > OK. But you do have to uniquely identify the binary that needs to be
> > patched. So, my question is when you generate 10x the same binary, will
> > all these 10 binaries have the same MD5 checksum? In other words: if
> > people did a local buildworld once on a -release sourcetree will all the
> > executables have the same MD5 as the ones on the -release cdrom?
>
> I don't think a binary patch is workable: all it takes is a single local
> buildworld and you've got an unpatchable system. Furthermore, I'd
> speculate that binary patches would usually be on the same order of size
> as the file itself. What *would* work is including the entire new file in
> the package. This is what solaris does.
>
> However, there are serious regression-testing and dependency problems with
> a scheme like this - i.e. making sure you've included *all* of the
> relevant changes.

Sounds like a package manager from another OS. :-)


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